Jia-you Luo

Central South University, Changsha, Hunan, China

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Publications (12)0 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: To explore the willingness of care and related influencing factors among caregivers of those 'left at hometown' children under 7 years in Chinese rural areas. Questionnaires were used to survey caregivers (n = 7585) who were identified by multi-stage stratified cluster sampling. Multi-factor ordinal logistic regression analysis was used to screen the influencing factors on the willingness of care among them. The percentage on 'very willing', 'willing', 'unwilling' on those 'left at home' children were 41.1%, 55.4% and 3.5% respectively in the group with single parent while 19.5%, 71.4% and 9.1% respectively in the group of both parents having left home. Data from the multi-factor ordinal logistic regression analysis showed that factors including the age of the caregiver, annual per capita income for caregivers' families, social connections and the length of children's mother being absent, amount of fees for living provided by parent/parents, and the child's age and lifestyle, being the only child or not, and the age of the child when the parent/parents left the residence etc, were related to the willingness of care of the givers. Willingness of care calls for attention and urgent improvement. Influencing factors and measures need to be taken when necessary.
    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi 09/2010; 31(9):965-9.
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    ABSTRACT: To explore the influences of guardians on emotion and behavior of rural left-behind children aged 3 to 7 years. A self-designed questionnaire of children's condition and Children Strengths and Difficulties Questionnaire (the edition for parents, SDQ) were used to investigate 805 left-behind children aged 3 to 7 years in countryside. The prevalence of difficulty among left-behind children was 3.5%, in male it was 4.1% and in female 2.7%, the difference was not significant (chi(2) = 1.154, P > 0.05) between male and female. The scores of peer communication problems among associate the left-behind children were (2.30 +/- 1.86), which was significantly higher than that (2.09 +/- 1.74) of not left-behind children (P < 0.05). The score of emotion symptom was (2.76 +/- 1.84) and the total score of difficulty was (11.41 +/- 4.77) among left-behind children was significantly higher than those of left-behind children with one parent stayed out (2.29 +/- 1.64) and (10.41 +/- 5.18), were significantly different (t = -2.489 - 2.006, P < 0.05), the score of social behavior (6.39 +/- 2.26) was significantly lower than that of left-behind children with father or mother stayed out (7.34 +/- 2.18, P < 0.001). The score of social behavior of children whose guardians had higher education level (7.02 +/- 2.21) was significantly higher than those with guardians who were illiterate or semiliterate (6.20 +/- 2.44, P < 0.01). There are evident problems in emotion and behavior among left-behind children with parents staying out. One of parents should stay home to care for children. To improve educational level of guardian will be beneficial to development of physical and mental health among left-behind children.
    Zhonghua er ke za zhi. Chinese journal of pediatrics 05/2010; 48(5):390-4.
  • Rong Zeng, Juan Lai, Jia-you Luo
    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi 11/2009; 30(11):1215-6.
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    ABSTRACT: To explore the genetic and environmental factors related to the development of polydactyly and syndactyly, and to provide evidence for prevention on birth defects. A hospital-based case-control study was conducted. 111 cases and 222 controls were interviewed with standardized questionnaires. Logistic regression models were used to select risk factors. Research data through univariate analysis showed that the occurrence of polydactyly and syndactyly were associated with educational level, annual average income per family member, meat and egg intake during early pregnancy, family heredity history, exposure to hazardous substance before pregnancy, serious pregnant reaction etc. of the pregnant women. As shown in multivariable logistic model, some factors, including annual average income of per family member (OR = 0.240), meat and egg intake during early pregnancy (OR = 0.182), could reduce the risk of the development of polydactyly and syndactyly. Other factors including family heredity history (OR = 10.187), exposure to hazardous substance before pregnancy (OR = 3.029), could increase the risk of developing polydactyly and syndactyly. The attributable risks (%) of family heredity history and exposure to hazardous substance before pregnancy were 90.18% and 66.99% respectively. Genetic factor was the leading cause on the development of polydactyly and syndactyly. In addition, environmental factors, such as family economic condition, nutritional status during early pregnancy and working condition before pregnancy were associated with the development of polydactyly and syndactyly.
    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi 09/2009; 30(9):903-6.
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    ABSTRACT: To understand emotional, behavioral problems and related determinants among rural stranded children and to provide evidence for further psychological support. A total of 3944 caregivers of children in the rural areas and aged 4 to 7 years but without parents around, were randomly selected. Data were collected through Strengths and Difficulties Questionnaires (the edition for parents, SDQ). The overall prevalence of children with behavioral/emotional problems was 43.6% among those stranded children including 8.3% having experienced emotional symptoms, 9.5% reported to be displaying 'conduct' problems, 8.7% exhibited significant hyperactivity/inattention, 18.9% experienced peer relationship problems and 16.8% having prosocial behaviors. The prevalence of behavioral/emotional problems was significantly higher in boys than those in girls and in lower age groups. Significant differences were also found in conduct problems, hyperactivity/inattention and prosocial behaviors (P<0.01). The result from logistic regression analysis showed that factors as education level and motivation of the caregivers as well as financial support from the parents were related to emotional/ behavioral problems among the stranded children. The prevalence of emotional and behavioral problems was high among children living the rural areas but without their parents around which should call for psychological intervention.
    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi 07/2009; 30(7):706-9.
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    ABSTRACT: To explore knowledge, attitude, practice (KAP) and related determinants on nutrition among caregivers of those rural stranded children under 7 years of age in China and to provide evidence for setting up relevant health education program. 1691 caregivers of the stranded children randomly selected were surveyed by a standard questionnaire. Logistic regression models were used to screen the determinants on KAP regarding nutrition. Rates on awareness, positive attitude and approprite behavior were lower in caregivers of children whose parents both left (47.8%, 55.4%, 41.8%, respectively) the countryside, when compared with those only one parent was away from home (59.9%, 59.5%, 38.0%, respectively). Data from multivariable logistic regression models showed that caregivers' KAP on nutrition was related to age, educational background, average family income, and willingness on the job as well as the age of the child. Improving caregivers' KAP on nutrition and setting up appropriate health education program were in urgent need.
    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi 06/2009; 30(6):588-91.
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    ABSTRACT: To provide evidence for setting up violence intervention programs in rural middle schools, through studying the influential factors. Taking variables including emotional, physical and sexual violence in the past year as the multi-dependent variables before multivariate multilevel model logistic regression model was adopted to analyze the correlations among the three kinds of violence and the influential factors. Among 3620 respondents, the incidence rates of emotional, physical and sexual violence weres 21.5%, 24.3% and 2.0% respectively. The correlation coefficients between emotional violence vs. physical violence, emotional violence vs. sexual violence, physical violence vs. sexual violence were 0.337, 0.133, 0.131 respectively when the random effect of class difference was separated by multivariate multilevel model. There was an internal aggregation of the incidence rate on physical violence in different grades (chi2=4.286, P = 0.038) and an internal relevant between emotional violence vs. sexual violence (chi2 = 4.239, P = 0.039), physical violence vs. sexual violence (chi2 = 4.482, P = 0.034). The influential factors on the incidence rates of violence would include: sex, smoking status, family without harmony, tendency of bullying others and the level on self-esteem etc. When the random effect of class difference was separated by multivariate multilevel model, the estimated results would be more precise. Other than paying more attention to both individual and family influential factors when taking measures to reduce the incidence rate of violence in high school students, the effect of environment in the class should not be ignored.
    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi 05/2009; 30(4):331-4.
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    ABSTRACT: To explore the nutritional status and determinants among rural stranded children under 7 years of age. The group of stranded children (n=7585) and the children for control (n=7557) were identified by multi-stage stratified cluster sampling. The ascertainment methods mainly included questionnaire, anthropometric measurements and laboratory examination. In this study, there were three groups, including the group of stranded children whose single parent left home to look for better job somewhere, the group of stranded children whose parent both left home and the third group serving as control. Prevalent rates on the following items were: stunting--14.9%, 17.9% and 16.3%, underweight--7.2%, 8.3% and 7.6%, wasting--3.1%, 3.4% and 3.3% and anemia--18.9%,20.6%, 18.7% respectively. The prevalent rate of stunting in the group of children with both parents away from home was significantly higher than that those with only one parent did. The prevalence rate of anemia in the group with both parents away from home was significantly higher than that in the control group. Based on multivariate non-conditional logistic regression analysis, the determinants of stunting among the stranded children were: age, with low birth weight, living alone, being the only child in the family, mother's education level, frequency of eating breakfast and snacks every week, motives of caretakers and the relationship between children and the caretakers. The determinants of underweight among those stranded children were: age of child, with low birth weight, the frequency of eating snacks every week, motives of the caretakers and having rickets. The nutritional status among rural stranded children was relatively poor, especially in those whose parents were both away from home, which calls for urgent improvement.
    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi 05/2009; 30(5):439-43.
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    ABSTRACT: To understand the dietary nutrients among rural stranded children. 2551 children aged 2 to 7, including 1278 stranded children in the rural areas and another 127 children served as controls were selected, using multistage stratified cluster random sampling. Dietary survey was performed with three-day weighing dietary method and questionnaire on food intake. Data on diet were analyzed and evaluated by the Dietary Reference Intakes (DRIs) recommend by Chinese Nutrition Society, to evaluate the levels on energy and nutrient intake among stranded children in the rural areas. The dietary pattern among rural stranded children mainly consisted of grains and vegetables, but the intakes of animal products, fruits, and snacks were significantly less than in the control group. The intakes of three major energy-producing nutrients were below the recommend nutrient intake. Minerals as calcium, zinc, selenium, kalium and vitamins as vitamin A, B1, B2 were insufficient. Most of the rural stranded children took nutrients insufficiently, with 50% lack of adequate energy and 80% of protein, 90% of minerals (calcium, zinc etc.) and vitamins (vitamin BI and vitamin B2 etc.). Sources from high quality protein was insufficient, only consisting 35% of the total protein, but overabundant (over 64%) from the plants. The intake of plant-sources iron was overabundant, accounted for 87%. The dietary pattern was unsatisfactory with insufficient intake of energy-sources proteins and some nutrients. The sources of energy, protein, and iron were mostly obtained from underbalanced foods. It is necessary to improve the dietary nutrients status among rural stranded children aged 2-7 years.
    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi 05/2009; 30(4):326-30.
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    ABSTRACT: Through analyzing the influencing factors of congenital heart disease (CHD), it is aimed to establish CHD risk prediction model in fetus, and simultaneously provide theoretical foundation for CHD prevention. One-factor logistic regression method was used to screen the significant factors regarding CHD, and to separately adopt multiple-factor non-conditional logistic regression method and decision tree to set up model prediction fetus CHD risk and to analyze the advantages and shortcomings. Correct classification rates turned to be 80.93% and 82.79% respectively among 215 'training samples' by the two methods and the rates were 85.45% and 89.09% respectively among 55 'testing samples'. The alliance of logistic regression and decision tree can overcome influence by co-linearity to guarantee the accuracy and perfection, as well as promoting the predictive accuracy.
    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi 01/2009; 29(12):1251-4.
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    ABSTRACT: To understand the status on care and nutrition of children living in the rural areas (so called 'left-behind' children) while their parents were seeking for jobs in the urban areas. Cross-sectional study was employed in this investigation. The group of 'left-behind' children (n = 774) and the comparison group (n = 774) were identified. The ascertainment methods mainly included questionnaire, anthropometrics measurements, food-frequency, and laboratory examination. Data from this study revealed that the guardians of the 'left-behind' children had less ability to ensure daily food that the children demanded than the control group and the 'left-behind' children were more likely to be poorly attended (chi2 = 6.671, P = 0.036; xhi2 = 15.053, P = 0.001). Mothers who chose to work outside of their households would tend to choose bottle-feeding or decrease the duration of breastfeeding for their infants (chi2 = 5. 051, P = 0.031; t = -7.201, P = 0.001). The intake of milk and bean products in children younger than 2 years old and cereal intake in children aged 2 to 4 in the group of 'left-behind' children were obviously lower than that seen in the control group (t = -2.150, P = 0.032; t = -2.054, P = 0.040 respectively). The 'left-behind' children were in high prevalence of anemia, and showed significant difference when comparing with the control group (chi2 = 4.560, P = 0.033). Children under 'left-behind' situation were in poor nutrition. Recognition of this situation by the communities, parents and extended families would facilitate more attention and effective intervention programs to improve the situation.
    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi 10/2008; 29(9):860-4.
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    ABSTRACT: To evaluate the abilities of population-based birth defects surveillance system (PBBDSS) and hospital-based birth defects surveillance system(HBBDSS). We used capture-mark-recapture method(CMR) to analyze the data of the two kinds of birth defects surveillance systems from 1 Oct. 2006 to 31 Dec. 2006 in a county of Hunan province. Data from PBBDSS were defined as the first source and data from HBBDSS were defined as the second source. 49 and 28 birth defect cases were found from PBBDSS and from HBBDSS respectively. Among these cases, 20 were marked. With the method of CMR, the estimated birth defects cases were 68 (95% CI: 56-70). The coincident rates of PBBDSS and HBBDSS were 72.1% and 41.2%, while the total coincident rates was 83.8% and the coincident rates from different sources was 57.1%. The unreported rates of PBBDSS and HBBDSS were 27.9% and 58.8%. Not only the HBBDSS but also the PBBDSS appeared to have had high unreported rates, suggesting that we could use CMR to adjust the rate of birth defects from the birth defects surveillance data.
    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi 03/2008; 29(2):155-7.