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ABSTRACT: An analytical method was developed for simultaneous measurement of urinary metabolites in the general population exposed to organophosphorus compounds (insecticides, flame retardants and plasticizers) and moth repellents used in Japanese households. Fifteen metabolites, dimethylphosphate, dimethylthiophosphate, diethylphosphate, diethylthiophosphate, di-n-butylphosphate, diphenylphosphate, bis(2-ethylhexyl)phosphate, 2-isopropyl-6-methyl-4-pyrimidinol, 3,5,6-trichloro-2-pyridinol, 3-methyl-4-(methylthio)phenol, 3-methyl-4-nitrophenol, 2,4-dichlorophenol, 2,5-dichlorophenol, 1-naphthol and 2-naphthol, were extracted from hydrolyzed urine by using a sorbent (hydroxylated polystyrene-divinylbenzene copolymers), and then desorbed with methylacetate and acetonitrile, concentrated, and after transformation to their tert-butyldimethylsilyl derivatives, analyzed by gas chromatography/mass spectrometry in the electron impact ionization mode. They could be determined accurately and precisely (quantification limits: 0.8-4 μg/l). The collected urine samples could be stored for up to 1 month at -20°C in a freezer.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences 11/2011; 880(1):66-73. · 2.78 Impact Factor
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ABSTRACT: The aim of the present study was to evaluate the measurement of contamination by antineoplastic drugs for safer handling of such drugs by medical workers. We investigated the relationship between the contamination level of antineoplastic drugs and the conditions of their handling.
Air samples and wipe samples were collected from equipment in the preparation rooms of five hospitals (hospitals A-E). These samples were subjected to measurement of the amounts of cyclophosphamide (CPA), fluorouracil (5FU), gemcitabine (GEM), and platinum-containing drugs (Pt). Twenty-four-hour urine samples were collected from the pharmacists who handled or audited, the antineoplastic drugs were analyzed for CPA and Pt.
Pt was detected from air samples inside BSC in hospital B. Antineoplastic drugs were detected from wipe samples of the BSC in hospitals A, B, D, and E and of other equipment in the preparation rooms in hospitals A, B, C, and D. Cyclophosphamide and 5FU were detected from wipe samples of the air-conditioner filter in hospital A, and CPA was detected from that in hospital D. Cyclophosphamide was detected from urine samples of workers in hospitals B, D, and E.
The contamination level of antineoplastic drugs was suggested to be related with the amount of drugs handled, cleaning methods of the equipment, and the skill level of the technique of maintaining negative pressure inside a vial. In order to reduce the contamination and exposure to antineoplastic drugs in the hospital work environment very close to zero, comprehensive safety precautions, including adequate mixing and cleaning methods was required in addition to BSC and closed system device.
Journal of Oncology Pharmacy Practice 03/2011; 17(1):29-38.
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Keiko Tanaka,
Yoshihiro Miyake,
Satoshi Sasaki,
Yukihiro Ohya,
Ichiro Matsunaga, Toshiaki Yoshida,
Yoshio Hirota,
Oda Hajime,
Hideharu Kanzaki,
Mitsuyoshi Kitada, [......],
Itsuo Tsunetoh,
Junichi Yoshida,
Junichi Iito,
Takuzi Kaneko,
Kaneko Sanfujinka,
Takao Kamiya,
Hiroyuki Kuribayashi,
Takeshi Taniguchi,
Hideo Takemura,
Yasuhiko Morimoto
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ABSTRACT: Recently, there has been growing interest in the impact of beverage consumption on dental health because changes have occurred in the types and quantities of beverage consumed. This cross-sectional study investigated the relationship between consumption frequencies of various beverages and the prevalence of tooth loss among young adult women. Study subjects were 1002 pregnant Japanese women. Tooth loss was defined as previous extraction of one or more teeth. Dietary habits were evaluated by a validated dietary history questionnaire. Logistic regression analysis was used to estimate the odds ratios and their 95% confidence intervals of tooth loss. Adjustment was made for age, gestation, parity, cigarette smoking, passive smoking at home and at work, family income, education, changes in diet in the previous one month, season when data were collected and body mass index. Of the 1002 subjects, 256 women had lost one or more teeth. Coffee consumption was independently associated with an increased prevalence of tooth loss. When subjects were divided according to consumption of coffee with or without sugar, an increased prevalence of tooth loss was found only in subjects who consumed coffee without addition of sugar. Compared with the lowest consumption of green tea, the intermediate but not the highest consumption of green tea was associated with an increased prevalence of tooth loss. There was no measurable association of intake of milk, black tea, cola, or 100% fruit juice with the prevalence of tooth loss. The findings suggest that coffee consumption might be associated with an increased prevalence of tooth loss among young adult women.
Fukuoka igaku zasshi = Hukuoka acta medica 04/2008; 99(4):80-9.
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ABSTRACT: Dietary factors may be important in the development of atopic eczema. It remains controversial whether n-3 polyunsaturated fatty acid intake is preventive against allergic disorders and whether n-6 polyunsaturated fatty acid intake increases the risk of allergic disorders. The current cross-sectional study examined the association between intake of fatty acids and foods high in fatty acids and the prevalence of atopic eczema. Study subjects were 1002 pregnant Japanese females. Current atopic eczema and atopic eczema after age 18 were defined as present if subjects had been treated with medications at some time in the previous 12 months and after reaching the age of 18, respectively. Information on dietary factors was collected using a validated self-administered diet history questionnaire. Docosahexaenoic acid intake was statistically significantly related to a decreased prevalence of atopic eczema after age 18 and current atopic eczema. Inverse dose-response relationships with regard to consumption of n-3 polyunsaturated fatty acids, eicosapentaenoic acid, and fish and the ratio of n-3 to n-6 polyunsaturated fatty acids with atopic eczema were not observed although these dietary variables in the second tertile were inversely significantly associated with atopic eczema after age 18. Intake of total fat, saturated fatty acids, monounsaturated fatty acids, n-6 polyunsaturated fatty acids, cholesterol, meat, eggs, or dairy products was not related to either of the outcomes for atopic eczema. Docosahexaenoic acid intake may be associated with a reduced prevalence of atopic eczema in pregnant Japanese females.
Asia Pacific Journal of Clinical Nutrition 02/2008; 17(4):612-9. · 1.13 Impact Factor
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ABSTRACT: The effects of formaldehyde (FA) exposure on allergic disorders are not clearly understood. This cross-sectional study examined the relationship between FA exposure and the prevalence of allergic disorders in Japan.
Subjects were 998 pregnant women. Participants were considered to have asthma, atopic eczema, or allergic rhinitis (including cedar pollinosis) if they had received any medical treatment for any of these allergic disorders during the previous 12 months. Passive air sampling tubes were worn for 24 hours and analyzed for FA.
When FA levels were categorized into four groups, there was a tendency for a positive exposure-response relationship between FA levels and the prevalence of atopic eczema, although the adjusted odds ratio for highest vs. lowest FA categories did not reach statistical significance. When FA levels were categorized into two groups to assess the effects of exposure to high levels of FA on allergic disorders, FA levels of 47 ppb or more were independently associated with an increased prevalence of atopic eczema (adjusted odds ratio = 2.25; 95% confidence interval, 1.01-5.01). The positive association was more pronounced in women with a negative familial allergic history than in those with a positive familial allergic history. No clear association was found between FA levels and the prevalence of asthma or allergic rhinitis.
FA exposure may be associated with an increased prevalence of atopic eczema in Japanese pregnant women.
Annals of Epidemiology 02/2008; 18(1):78-84. · 3.21 Impact Factor
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ABSTRACT: Epidemiological evidence regarding dental status and its relationship to diet and nutritional status has been limited. The present cross-sectional study examined the relationship between intake of vegetables, fruit, grains, antioxidants, and fiber and the prevalence of tooth loss. Study subjects were 1,002 pregnant Japanese women. Tooth loss was defined as the previous extraction of 1 or more teeth. Adjustment was made for age, gestation, parity, cigarette smoking, passive smoking at home and at work, family income, education, changes in diet in the previous 1 mo, season when data were collected, and body mass index. Of the 1,002 subjects, 256 women had lost 1 or more teeth. Compared with intake of vegetables other than green and yellow vegetables in the lowest quartile, consumption of the other vegetables in the highest quartile was independently associated with a decreased prevalence of tooth loss, showing a clear inverse dose-response relationship. There was a marginally significant inverse dose-response relationship between the intake of insoluble fiber and tooth loss. No association was observed between intake of green and yellow vegetables, soluble fiber, or antioxidant nutrients and tooth loss. These findings suggested that consumption of vegetables other than green and yellow vegetables and insoluble fiber may be related to a decreased prevalence of tooth loss among young Japanese women.
Journal of Nutritional Science and Vitaminology 01/2008; 53(6):522-8. · 1.20 Impact Factor
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ABSTRACT: It remains uncertain whether intake of fish or n-3 polyunsaturated fatty acids is preventive against allergic disorders. This cross-sectional study investigated the association of intake of selected high-fat foods and specific types of fatty acids with the prevalence of allergic rhinitis in Japan where intake of fish is high.
Study subjects were 1002 Japanese pregnant females. Allergic rhinitis (including cedar pollinosis) was defined as present if subjects had received drug treatment at some point during the previous 12 months. Information on dietary factors was collected using a validated self-administered diet history questionnaire. Adjustment was made for age, gestation, parity, cigarette smoking, passive smoking at home and at work, indoor domestic pets, family history of asthma, atopic eczema, and allergic rhinitis, family income, education, mite antigen level in house dust, changes in diet in the previous month, season when data were collected, and body mass index.
There was a tendency for an inverse dose-response association between fish intake and allergic rhinitis although the adjusted odds ratio for comparison of the highest with the lowest quartile was not statistically significant (p for trend = 0.09). Intake of eicosapentaenoic and docosahexaenoic acids was independently associated with a decreased prevalence of allergic rhinitis: the multivariate odds ratio for the highest quartile was 0.56 (95% confidence interval: 0.32-0.96, p for trend = 0.03). Intake of n-6 polyunsaturated fatty acids in the third quartile but not the second and fourth quartiles showed a tendency for an inverse association with the prevalence of allergic rhinitis. No measurable relationship was found between consumption of meat, eggs, dairy products, total fat, saturated, monounsaturated, and n-3 polyunsaturated fatty acids, and cholesterol or the ratio of n-3 to n-6 polyunsaturated fatty acids and allergic rhinitis.
Our findings suggest that the intake of eicosapentaenoic and docosahexaenoic acids may be associated with a reduced prevalence of allergic rhinitis.
Journal of the American College of Nutrition 07/2007; 26(3):279-87. · 2.29 Impact Factor
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ABSTRACT: It may be worthwhile to assess the possible protective effect of the traditional Japanese diet on allergic disorders. This cross-sectional study investigated the relationship between dietary intake of seaweed, vegetables, fruit, antioxidants, fiber, and minerals and the prevalence of allergic rhinitis.
Study subjects were 1002 Japanese pregnant women. Allergic rhinitis (including cedar pollinosis) was defined as present if subjects had received drug treatment at some point during the previous 12 months. Information on dietary factors was collected by using a self-administered diet history questionnaire.
Seaweed intake was associated independently with a decreased prevalence of allergic rhinitis. Significant inverse dose-response relationships were found between calcium and phosphorus intake and allergic rhinitis prevalence. There also was a tendency for an inverse association between magnesium consumption and allergic rhinitis. Additional adjustment for calcium or magnesium intake apparently did not influence the inverse association with seaweed consumption. Consumption of vegetables, fruit, vitamins C and E, fiber, and zinc showed no association with allergic rhinitis, whereas a significant positive relationship was observed between beta-carotene intake and allergic rhinitis.
High dietary intake of seaweed, calcium, magnesium, and phosphorus may be associated with a decreased prevalence of allergic rhinitis.
Annals of Epidemiology 09/2006; 16(8):614-21. · 3.21 Impact Factor
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ABSTRACT: The cabin of an automobile can be considered to be a part of the living environment because many people spend long periods of time during business, shopping, recreation or travel activities. However, little is known about the interior air contamination due to organic compounds diffusing from the interior materials used in the interior of automobiles. In the present study, the compounds in the interior air of a new car were identified, and the time courses of their concentrations were examined for over 3 years after the delivery (July, 1999). A total of 162 organic compounds, involving many aliphatic hydrocarbons and aromatic hydrocarbons, were identified. High concentrations of n-nonane (458 microg/m(3) on the day following delivery), n-decane (1301 microg/m(3)), n-undecane (1616 microg/m(3)), n-dodecane (716 microg/m(3)), n-tridecane (320 microg/m(3)), 1-hexadecene (768 microg/m(3)), ethylbenzene (361 microg/m(3)), xylene (4003 microg/m(3)) and 2,2'-azobis(isobutyronitrile) (429 microg/m(3)) were detected, and the sum of the concentrations determined for all compounds excluding formaldehyde (TVOC) was approximately 14 mg/m(3) on the day after the delivery. The concentrations of most compounds decreased with time, but increased with a rise of the interior temperature. The TVOC concentration in the next summer (July, 2000) was approximately one-tenth of the initial concentration. During the 3-year study period, the TVOC concentrations in summer exceeded the indoor guideline value (300 mug/m(3)) proposed by [Seifert B. Volatile organic compounds. In: Maroni M, Seifert B, Lindvall T, editors. Indoor air quality. A comprehensive reference book. Air quality monographs, vol. 3. Netherlands: Elsevier Science; 1995. p. 819-21]. The interior temperature and days lapsed after delivery were the main factors affecting the interior concentrations of most compounds according to multiple linear regression analysis. The results of this study offer useful fundamental data for investigations on air pollution in automotive cabins due to the organic compounds diffusing from the interior materials.
Environment International 02/2006; 32(1):58-79. · 5.30 Impact Factor
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ABSTRACT: It has been hypothesized that isoflavones reduce the risk of many chronic diseases, but there are no data on the effects of dietary soy and isoflavone consumption on allergic disorders.
This cross-sectional study examined the relationship between dietary soy products and isoflavone intake and the prevalence of allergic rhinitis.
Study subjects were 1002 Japanese pregnant women. Allergic rhinitis (including cedar pollinosis) was defined as present if subjects had received drug treatment at some point during the previous 12 months. Adjustment was made for age; gestation; parity; cigarette smoking; passive smoking at home and at work; indoor domestic pets; family history of asthma, atopic eczema, and allergic rhinitis; family income; education; mite allergen level in house dust; changes in diet in the previous month; season when data were collected; and body mass index.
Compared with dietary intake of total soy product, soy protein, daidzein, and genistein in the first quartile, consumption of these substances in the fourth quartile was independently associated with a reduced prevalence of allergic rhinitis, although no significant dose-response relationships were observed. A clear inverse linear trend for miso intake across quartiles was found, whereas the adjusted odds ratio for comparison of the highest with the lowest quartile was not statistically significant. Consumption of tofu, tofu products, fermented soybeans, boiled soybeans, and miso soup was not related to the prevalence of allergic rhinitis.
A high intake of soy and isoflavones may be associated with a reduced prevalence of allergic rhinitis.
Journal of Allergy and Clinical Immunology 07/2005; 115(6):1176-83. · 11.00 Impact Factor
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ABSTRACT: Evidence remains inconclusive as to whether smoking is a risk factor for allergic disorders in adults.
To investigate the relationship between active and passive smoking exposure and allergic disorders in pregnant Japanese women.
This cross-sectional study included 1,002 pregnant women. Participants were classified as having asthma after the age of 18 years if they had used an asthma medication at any time after reaching the age of 18 years. Current atopic eczema and allergic rhinitis (including cedar pollinosis) were defined as being present if participants had received any drug treatment during the previous 12 months. Adjustment was made for age; gestation; parity; family history of asthma, atopic eczema, and allergic rhinitis; indoor domestic pets; family income; education; and the mite antigen level in house dust.
Current smoking, but not environmental tobacco smoke exposure, was independently related to an increased prevalence of asthma after the age of 18 years (adjusted odds ratio [OR], 2.66; 95% confidence interval [CI], 1.30-5.38). A significant positive association of current passive smoking exposure at home (adjusted OR, 1.89; 95% CI, 1.10-3.30) and at work (adjusted OR, 2.50; 95% CI, 1.29-4.76) with the prevalence of current allergic rhinitis was observed, whereas no measurable association with active smoking exposure was found. Neither active nor passive smoking was statistically significantly related to the prevalence of current atopic eczema.
These findings suggest that active smoking and environmental tobacco smoke exposure may increase the likelihood of asthma and allergic rhinitis, respectively, in pregnant Japanese women.
Annals of allergy, asthma & immunology: official publication of the American College of Allergy, Asthma, & Immunology 07/2005; 94(6):644-51. · 2.83 Impact Factor
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ABSTRACT: Many studies have shown a positive association between cigarette smoking and oral diseases. Few studies, however, have focused on the relationship between passive smoking exposure and oral health in adults. We investigated the association of active and passive smoking exposure with tooth loss in Japan.
Study subjects were 1002 pregnant women. Tooth loss was defined as previous extraction of one or more teeth. Adjustment was made for age, gestation, parity, family income, education, and body mass index.
Of the 1002 subjects, 256 women had lost one or more teeth. Current light smoking was independently related to an increased prevalence of tooth loss, showing a significant exposure-related association with smoking status. A significant positive association of 8 or more pack-years of smoking with the prevalence of tooth loss was observed. Also, a significant positive relationship was found between current heavy passive smoking at home and tooth loss, but not with pack-years of passive smoking at home. No measurable association between passive smoking exposure at work and tooth loss was indicated.
The present findings suggest that passive as well as active smoking may be associated with an increased prevalence of tooth loss in Japanese young adult women.
Annals of Epidemiology 06/2005; 15(5):358-64. · 3.21 Impact Factor
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Journal of Allergy and Clinical Immunology 04/2004; 113(3):571; author reply 571-2. · 11.00 Impact Factor
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ABSTRACT: A method is described for simultaneous determination of semivolatile organic compounds (SVOCs) in indoor air by gas chromatography-mass spectrometry (GC-MS). The selected 73 SVOCs were collected using combined adsorbents (quartz fiber filter disk and Empore disk) for 24 h at a 5.0 l/min flow rate. The SVOCs collected were extracted with acetone, concentrated, then analyzed by an internal standard method. Forty compounds (19 plasticizers and flame retardants; 19 insecticides; 1 synergist; and 1 fungicide) among the target SVOCs were determined accurately and precisely. The method of detection limits for these compounds were approximately 0.5 ng/m3 for most of the SVOCs. The collected SVOC samples could be stored for up to 1 month at 4 C in the refrigerator.
Journal of Chromatography 02/2004; 1023(2):255-69. · 4.53 Impact Factor
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ABSTRACT: Inhalation toxicokinetics of p-dichlorobenzene ( p-DCB) in humans was evaluated, and the amounts of daily absorption and internal accumulation were estimated in order to obtain fundamental data for the risk assessment of chronic low-level exposure in the general population. Seven male subjects continuously inhaled about 2.5 ppm of p-DCB vapor for 1 h, and the concentration-time courses of p-DCB in their exhaled air and serum and of urinary 2,5-dichlorophenol (2,5-DCP), a major metabolite of p-DCB, were examined. The toxicokinetics of p-DCB was evaluated on the basis of the time courses using a linear two-compartment model. The amounts of p-DCB absorbed daily and the internal accumulation in chronic low-level exposure were extrapolated using the estimated toxicokinetic parameters. p-DCB was transferred from inhaled air to the body with a constant high absorption rate during exposure. The major route for elimination from the body was urinary excretion followed by metabolism, not exhalation. However, during 9-11 h after the start of exposure, the fraction of p-DCB excreted in urine was only 5-16% of the amount absorbed. Furthermore, most of the absorbed p-DCB seemed to be distributed rapidly to the tissues, such as fat, according to toxicokinetic analysis. Consequently, p-DCB seems to require a long time to be completely eliminated from the body. The amounts of daily absorption and internal accumulation were extrapolated to average 0.27 mg/day and 2.9 mg, respectively, in the subjects exposed chronically to 1 ppb of p-DCB. The amount absorbed daily agreed approximately with that extrapolated from rats which inhaled p-DCB in our previous study.
Archive für Toxikologie 07/2002; 76(5-6):306-15. · 4.67 Impact Factor
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ABSTRACT: Environment pollution by 1,3-butadiene had considerably increased in Japan. The main cause of the pollution is the automotive exhaust gas, and leaks from factories, smoking, and burning of rubber and plastic products are considered to be minor sources. The object of this study was to determine the contamination levels of airborne 1,3-butadiene in factories processing rubber and plastics containing 1,3-butadiene. The concentrations of airborne 1,3-butadiene were measured in 21 plants (10 rubber processing plants and 11 plastics processing plants) in Osaka. 1,3-Butadiene in air was collected for 10 minutes with a charcoal tube and a portable small pump adjusted to a 250 ml/min flow rate. In each plant, indoor air samples at five points and an outdoor air sample at one point outside the plant were collected. The samples were subjected to gas chromatography/mass spectrometry after thermal desorption from the charcoal. The concentrations of airborne 1,3-butadiene in the rubber processing plants and the plastics processing plants were 0.14-2.20 micrograms/m3 (geometric mean: 0.48 microgram/m3) and 0.23-4.51 micrograms/m3 (geometric mean: 0.80 microgram/m3), respectively. In all plants examined, indoor 1,3-butadiene concentrations were higher than the outdoor concentrations around the plants. Therefore, 1,3-butadiene was considered to arise from the processing of rubber or plastics, but the indoor 1,3-butadiene concentrations were much lower than the PEL-TWA (1 ppm = 2.21 mg/m3) of OSHA and the TLV-TWA (2 ppm) of ACGIH. The concentrations in the plants with closed room conditions without ventilation were higher than the concentrations in the other plants. It was suggested that ventilation affected the 1,3-butadiene concentration in the plants.
SANGYO EISEIGAKU ZASSHI 04/2002; 44(2):56-63.
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ABSTRACT: Three healthy volunteers were exposed to 1,4-dichlorobenzene (p-DCB) vapor (2.4–2.8 ppm) for 1 hr, peripheral blood was taken before and after exposure. Serum was collected and incubated with calf thymus DNA to examine whether there are any DNA-binding metabolites persisting in human serum. Among the 3 subjects we detected 4, 2, and 0 DNA adducts respec-tively, no differences were found in adduct profiles before or after p-DCB inhalation. The result reflects that qualities and quantities of DNA-reactive metabo-lites in human sera are different, depending upon in-dividual exposure to environmental carcinogens and their metabolism ability. There were no additional DNA-reactive metabolites found after inhalation ex-posure to p-DCB.
Journal of Health Science. 01/2001; 47:537-25.
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ABSTRACT: Urinary metabolites in rats treated withp-chloronitrobenzene were identified by gas chromatography-mass spectrometry. A single dose of 100 mg/kg body wtp-chloronitrobenzene was administered intraperitoneally to male Sprague-Dawley rats and urine samples were collected from the 8th to 24th hour after the administration. Urinary metabolites were extracted with diethylether at pH 1.0 and pH 10.0 from urine samples hydrolyzed with acid and base and from intact urine samples. Aliquots of the ethereal extracts were injected into a gas chromatograph-mass spectrometer. Nine substances were identified:p-chloroaniline, 2,4-dichloroaniline,p-nitrothiophenol, 2-chloro-5-nitrophenol, 2-amino-5-chlorophenol,p-chloroformanilide, 4-chloro-2-hydroxyacetanilide, a small amount ofp-chloroacetanilide and traces of unchangedp-chloronitrobenzene.
Archive für Toxikologie 12/1990; 65(1):52-58. · 4.67 Impact Factor
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Keiko Tanaka,
Yoshihiro Miyake,
Satoshi Sasaki,
Yukihiro Ohya,
Ichiro Matsunaga, Toshiaki Yoshida,
Yoshio Hirota,
Hajime Oda,
Osaka Maternal and Child Health Study Group,
景子 田中, [......],
肇 織田,
大阪母子保健グループ,
ケイコ タナカ,
ヨシヒロ ミヤケ,
サトシ ササキ,
ユキヒロ オオヤ,
イチロウ マツナガ,
トシアキ ヨシダ,
ヨシオ ヒロタ,
ハジメ オダ
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[hide abstract]
ABSTRACT: Recently, there has been growing interest in the impact of beverage consumption on dental health because changes have occurred in the types and quantities of beverage consumed. This cross-sectional study investigated the relationship between consumption frequencies of various beverages and the prevalence of tooth loss among young adult women. Study subjects were 1002 pregnant Japanese women. Tooth loss was defined as previous extraction of one or more teeth. Dietary habits were evaluated by a validated dietary history questionnaire. Logistic regression analysis was used to estimate the odds ratios and their 95% confidence intervals of tooth loss. Adjustment was made for age, gestation, parity, cigarette smoking, passive smoking at home and at work, family income, education, changes in diet in the previous one month, season when data were collected and body mass index. Of the 1002 subjects, 256 women had lost one or more teeth. Coffee consumption was independently associated with an increased prevalence of tooth loss. When subjects were divided according to consumption of coffee with or without sugar, an increased prevalence of tooth loss was found only in subjects who consumed coffee without addition of sugar. Compared with the lowest consumption of green tea, the intermediate but not the highest consumption of green tea was associated with an increased prevalence of tooth loss. There was no measurable association of intake of milk, black tea, cola, or 100% fruit juice with the prevalence of tooth loss. The findings suggest that coffee consumption might be associated with an increased prevalence of tooth loss among young adult women. 近年，嗜好飲料の種類とその摂取量が増加しており，これらの飲料の摂取が歯科疾患に与える影響について注目されている．本横断研究では，日本人の若年成人女性における各嗜好飲料の摂取頻度と歯牙喪失有症率との関連について検討した．研究対象者は1002 名の妊婦である．過去に永久歯を1本以上抜歯した経験がある場合，歯牙喪失ありと定義した．妥当性の検証された食事歴法質問調査票を用いて食習慣を評価した．解析には多変量ロジスティック回帰分析を用いた．年齢，妊娠週，子数，喫煙，家庭及び職場での受動喫煙，家計の年収，教育歴，過去1ヶ月の食事変容，回答時の季節及びbody mass indexを補正した．1002名の研究対象者のち，256 名で抜歯経験があった．コーヒー摂取は有意に歯牙喪失の有症率の高まりと関連していた．コーヒー摂取の際の砂糖使用の有無による解析では，砂糖を使用していない群でのみコーヒー摂取と歯牙喪失の有意な正の関連を認めた．緑茶摂取については，第1三分位に比較して，第2三分位でのみ歯牙喪失と有意な正の関連を認めた．牛乳，紅茶，コーラ及び100％フルーツジュースの摂取と歯牙喪失との間に関連はなかった．本研究結果より，若年成人女性においてコーヒー摂取は歯牙喪失の有症率の高まりと関連があるのかもしれない．
