The Prevalence And Studies On Its Related Factors Of FGIDs In Part Of Military Races

Background: Functional Gastrointestinal Disorders (FGIDs) are a series of diseases characterized with abdominal pain, distension, nausea, vomiting, diarrhea, constipation et al, without observed anatomical or physiological abnormalities. The newly established Rome III process, which divided FGIDs into 6 categories with 28 disorders, improved the judgment in clinical practice and few investigation was made in military races followed this criteria.Objective: To investigate the prevalence and related factors of FGIDs followed Rome III process in part of military races and evaluate the health related quality of life (HRQOL) in order to provide the suitable preventing regime and keeping the military force.Methods: The military races were divided into three groups according to the region located (east, south and north group). The investigation schedules made followed Rome III Criteria were used to collect the data in the military races. Schedules made by Rome II process was also made at the same time. Sample data selected randomly were collected directed by the investigators. All data double input into computer by the use of Epid. Data software and analyses were made covering prevalence and related factors. Statistical study was made by the use of SPSS13.0 and EXCEL2007.Results: The general prevalence of FGIDs in part of military races according to RomeIII process was 34.12% (2584/7574). The prevalence of IBS, functional constipation and functional dyspepsia were 15.91% (1205/7574), 11.55% (875/7574), 9.88% (748/7574), separately which occupied the first three disorders of FGIDs. The whole ratio of symptoms was 42.96%. Among all the symptoms, the four main common symptoms were frequent defecation difficulty (38.61 %), abdominal pain & discomfort (17.67%), early satiation (15.48%) and abdominal bloating (14.67%). The prevalence in a single region of FGIDs was 43.27%, which offered the highest onset. And in this region, the first three FGIDs were functional bowel disorders (24.47%), functional gastroduodenal disorders (16.74%) and functional esophageal disorders (10.09%). Coexist of the symptoms and the disorders were relatively high which showed that symptoms coexisted was 51.21% and disorders coexisted was 56.73%. There were several factors which could affect the onset of FGIDs which included gender, age, years in the army, levels, jobs, birth place, regions and bodyweight index (P=0.000-0.025<0.05). Female occupied higher prevalence in functional bowel disorders and male was higher in remaining disorders. The prevalence increased equally to the age, years in the army, levels, bodyweight index which showed that people with 26-45 years of age, 13-16 years military service background, lieutenant & up, over bodyweight index and fatty persons offered the higher onset. There were also some factors which could influence the onset of FGIDs which included diet habit (P=0.000-0.022<0.05), life styles and psychological status and history of diseases & operation (P=0.000-0.031<0.05). The relative risk by logistic analyses was as followed: history of hepatobiliay & pancreatic diseases, blood infusion, abdominal operation, working regions, sleepiness, fluid intake, military ranks, time of eating, ages, years of drinking, hot food, birth place, special hobby on diet, leisure time, field training, hard food, on diet, eat & drink too much in a meal, working pressure, training in hot weather, spice food, dysentery, trauma, frequent medicine therapy, paragastroenterological diseases and hemorrhoids (Exp=6.518-0.044). The major symptoms, prevalence and coexisted disorders varied depending on the different regions. Frequently defecation difficulty was the most common symptoms in all three regions. Frequent nausea and abdominal pain & discomfort offered the second and third position in south region of military races. Abdominal pain & discomfort and early satiation were found in north region. And early satiation & abdominal pain & discomfort in east region. As for the prevalence of FGIDs, IBS found to be the most common disorder in all regions. Concerning the second and third disorders, difference was found in different region which showed functional constipation and functional dyspepsia in east and north regions, whereas functional dyspepsia & functional constipation in south region. In the three regions, most influenced factors showed the same as described above except the kind of job which was different according to its regions. In the east, administrative staff, military specialist and scientific staff offered higher prevalence. In the south, militia students, administrative staff and military specialist had higher prevalence. In the north, scientific & medical staff, administrative staff and military specialist showed higher. In all thirteen branches of military races, the major symptoms were abdominal pain & discomfort, abdominal bloating, frequent nausea, frequent defecation difficulty with high prevalence of functional bowel disorders and functional gastroduodenal disorders. Among the thirteen branches, branch A, L, E, B & D had higher prevalence. In the comparison study on Rome III process and Rome II process, the general ratio of symptoms, the general prevalence of FGIDs and coexist of FGIDs by Rome II process were 20.03%, 21.90% and 50.39%, which were lower than that judged by Rome III process. Among the 21 disorders of FGIDs, there were 15 disorders which Rome III process had higher diagnostic ratio than that of Rome II process. Rome III process could improve 1/3 of the diagnostic ratio in FGIDs except functional gallbladder & Sphincter of Oddi disorders and functional anorectal disorders which Rome II process showed better.Conclusion: FGIDs had a relatively high prevalence in part of military races which occupied 1/3 of its races. IBS, FC and FD had higher prevalence in all FGIDs. There were many factors could affect the onset of the disorders including life style and eating habits, social & psychological aspect, environment factors, history of diseases, etc. The coexisting of the disorders in FGIDs was very common in 19.36% of the patients. Finally, the Rome III process offered higher ratio of FGIDs in 15 disorders compared with Rome II process except functional gallbladder & Sphincter of Oddi disorders and functional anorectal disorders.