Article

Prevalence of constipation among medical students of an institution in Northwestern São Paulo State

Revista Brasileira de Coloproctologia 01/2010; 30:203-209. DOI: 10.1590/S0101-98802010000200012

ABSTRACT Introduction: Constipation is a highly prevalent disease in the Western world. It has a complex and multifactorial etiology, and courses with important impacts from a medical and socio-economical point of view. It is possible that health professionals and medical students, given the nature of their professional activities, trend to present higher rates of the disease in comparison to the general population.

Objectives: To determine the prevalence rates of constipation among students of a single medical school according to diagnostic criteria in the literature, and to compare them with those reported among the general population.

Patients and Methods: A transversal study was carried out with a sample of 360 medical students of a single medical school in Northwestern São Paulo State, by means of a self-administered questionnaire; a total of 150 students (42%) completed the questionnaire; definition of constipation was based on the Rome III diagnostic criteria.

Results: The overall prevalence rate of constipation was 35%, with predominance of the disease among female (55%; p< 0.0001); female students also had a lower frequency of daily evacuations and a higher frequency of laxative use (p< 0.05).

Conclusions: The prevalence rate of constipation in the studied population was higher than that reported among general population in several studies, and a more accurate search about this fact will be object of further studies.

0 Bookmarks
 · 
120 Views
  • [Show abstract] [Hide abstract]
    ABSTRACT: Constipation is a common heterogeneous condition, possibly encompassing different clinical subtypes. Little is known about the comparative epidemiology of constipation subtypes. This study was conducted to estimate the prevalence of constipation subtypes and determine whether subtypes differ by sociodemographic factors. Between June and September 1997, a telephone interview was conducted with individuals about their bowel habits in the preceding 3 months. Survey data on 15 constipation-related symptoms were used to identify individuals who met prespecified symptom criteria for the following mutually exclusive subgroups: functional constipation, irritable bowel syndrome (IBS), outlet obstruction or delay (outlet), both IBS and outlet (IBS-outlet), and frequent laxative users (i.e., at least every other day). A total of 10,018 eligible individuals in the United States 18 yr of age or older completed the interview. Test-retest reliability of reporting symptoms was assessed in a separate national survey. The Spearman's correlation coefficient for reporting symptoms ranged from 0.54 to 0.83; all but three symptoms had correlations above 0.68. The overall prevalence of constipation was 14.7%. By subtype, prevalence was 4.6% for functional, 2.1% for IBS, 4.6% for outlet, and 3.4% for IBS-outlet. An additional 1.8% of respondents reported laxative use at least every other day. Outlet was the most common subtype among women, whereas functional constipation was the most common subtype among men. The gender ratio varied by subtype, with elevated ratios for outlet (F/M = 1.65) and IBS-outlet (F/M = 2.27) subtypes. The age pattern differed among each of the four subtypes. Prevalence of functional subtype decreased with increasing age. In contrast, outlet subtype did not seem to vary by age, and IBS (both men and women) and IBS-outlet (women only) subtypes increased to age 35 yr and declined thereafter. Prevalence of functional constipation increased with increasing education. Outlet type was more common in nonwhites compared to whites. Finally, 45% of individuals with constipation reported having the condition for 5 yr or more. Constipation is a heterogeneous condition. Differences in epidemiological profile by age, sex ratio, and relation to other sociodemographical factors support the distinction of two and possibly more symptom-based subtypes.
    The American Journal of Gastroenterology 01/2000; 94(12):3530-40. · 7.55 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The aim of this study was to systematically review the published literature regarding prevalence, risk factors, incidence, natural history, and the effect on quality of life of constipation in North America. A computer-assisted search of MEDLINE, EMBASE, and Current Contents databases was performed independently by two investigators. Study selection criteria included the following: (1) North American population-based sample of adults with constipation; (2) publication in full manuscript form in English; and (3) report on the prevalence, incidence, and natural history of constipation or impact of constipation on quality of life. Eligible articles were reviewed in a duplicate, independent manner. Data extracted were compiled in tables and presented in descriptive form. The estimates of the prevalence of constipation in North America ranged from 1.9% to 27.2%, with most estimates from 12% to 19%. Prevalence estimates by gender support a female-to-male ratio of 2.2:1. Constipation appears to increase with increasing age, particularly after age 65. No true population-based incidence studies or natural history studies were identified. In one cohort, 89% of patients with constipation still reported constipation at 14.7 months follow-up. From limited data, quality of life appears to be diminished by constipation, but the clinical significance of this is unclear. Constipation is very common, as approximately 63 million people in North America meet the Rome II criteria for constipation. Minimal data are available regarding incidence, natural history, and quality of life in patients with constipation. Effort should be expended toward the study of these topics, particularly in the elderly, who are disproportionately affected by this condition.
    The American Journal of Gastroenterology 05/2004; 99(4):750-9. · 7.55 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: This report presents health statistics from the 1998 National Health Interview Survey for the civilian noninstitutionalized adult population, classified by sex, age, race and Hispanic origin, poverty status, and region of residence for chronic condition prevalence, health status and limitations in activity, health care access and utilization, health behaviors, and attitudes toward acquired immunodeficiency syndrome (AIDS). Health statistics by education, income, health insurance coverage, marital status, and place of residence are also presented for health status and limitations in activity, health care access and utilization, health behaviors, and knowledge and attitudes toward AIDS. The NHIS is a multistage probability sample survey conducted annually by interviewers of the U.S. Census Bureau for the National Center for Health Statistics, Centers for Disease Control and Prevention, and is representative of the civilian noninstitutionalized U.S. population. Data are collected during face-to-face interviews with adults present at the time of the interview. Also, the self-reported health information for adults in this report was obtained from one randomly selected adult per family. In 1998, 65% of adults 18 years of age and over reported excellent or very good health. However, 17% of adults less than 65 years of age had no health insurance coverage, and 14% of adults did not have a usual place of medical care. Twelve percent of adults had ever been told by a doctor or health professional that they had heart disease and 19% had been told on two or more visits that they had hypertension. Nearly a quarter of adults were current smokers, and 23% were former smokers. Sixty percent did not engage in any leisure-time vigorous physical activity, and based on estimates of body mass index, 35% were overweight and 20% were obese.
    Vital and health statistics. Series 10, Data from the National Health Survey 01/2003;

Full-text

View
41 Downloads
Available from
Jun 1, 2014