Background
TV viewing and computer use are sedentary behaviors and recent surveys report that they are associated with obesity in children. Association of these activities with obesity or obesity related lifestyles was investigated in this study. Methods: Using the database of questionnaires and physical check-ups among 4th to 6th grade elementary school students in Incheon, the association of television viewing and internet using time with obesity and obesity related factors (dietary habits, and physical activities) were investigated. A total of 2,750 students (1,100 normal weighted/1,650 overweight or obese) were included. Results: In the multiple analyses of computer using time among the boys and girls in weekdays and weekends respectively, according to their obesity degree, except for overweight and obese boys in weekends (P＜0.001), there were no significant differences examined. Multiple logistic regression revealed that children who watched TV more than 2 hours per day ate faster (OR 1.27), had breakfast more irregularly (OR 1.41) and ate vegetables more rarely (OR 1.53). The children who used computer more than 1 hour per day in weekdays were faster eaters (OR 1.38) and hardly ate fruits (OR 1.26) or vegetables (OR 1.60). In weekends, the children who spent time more than 90 minutes in the computer were faster to eat (OR 1.46), more snack eating (OR 1.22), less vegetable consuming (OR 1.59) and more obese (OR 1.46, 95%CI 1.24∼1.73) compared to the others. Conclusion: TV viewing and computer use were associated with several obesity related lifestyles in children. (J Korean Acad Fam Med 2008;29:182-188)

Background
: Computer can in many ways improve the quality and efficacy of medical care. The purpose of this study was to perform a comprehensive survey of present computer use and investigate the factors affecting computer use by family physicians.

Methods : 1250 family physicians were surveyed by mail from May to August, 1999. The survey protocol included demographic characteristics, opinions on computer use in medicine, present computer usages and wanted applications in the future.

Results : Of the 306 responses received, 291 responses were analysed, 91.4% replied that they used computers in the medical field, and 58.1% said they used computers during medical interview. Factors preventing computer use in medicine were cost(33%), time(16%), insufficient information(14%), the doctor-patient relationship(12%) and no perceived need(6%). While 46% of the responders who used computers in the medical field cited fellow doctors for their interest in computer use in the medical field, only 6.2% answered that medical societies or associations had promoted their interest. Present usage of computers included word processing. online communication, internet, medical insurance billing, in descending order. Factors affecting the present degree of computer use that were statistically significant, were the computer system used, factors preventing computer use and the preset form of practice.

Conclusion : Although, most family physicians use computers in the medical field, its use is still limited to a few areas.

Background
: The purpose of this survey was to assess knowledge of the public on family medicine through the analysis of medical counseling by PC communication and compare them with that of internal medicine.

Methods : This survey analyzed the content of medical counseling by PC communication according to ICPC from Oct. 1996 to Jun. 1998. The survey was done by means of E-mail in Nownuri eyes and the selected medical departments were those of family medicine and internal medicine in Pusan National University Hospital.

Results : The total number of questions was 342, including 181 in the department of family medicine and 161 in internal medicine. In the analysis of medical counseling according to ICPC, there was a significant difference between family medicine and internal medicine in the reasons for questions by components(P<0.001). In family medicine, the reasons were symptoms, complaints(66.9%), diagnoses, diseases(18.8%), treatment, procedure, medication(17.2%), and diagnostic, screening, prevention(5.5%). In internal medicine, the reasons for questions were symptoms, complaints(64.6%), diagnoses, diseases(21.1%), treatment, procedure, medication(9.3%), and test results(4.3%).
There was a significant difference between family medicine and internal medicine in the questions by chapters(P<0.05). In family medicine, the questions about digestive system were 28 cases(15.5%), neurological system were 26 cases(14.4%), musculoskeletal system were 25 cases(13.8%), and unspecified were 25 cases(13.8%). In internal medicine, the questions about digestive system were 76 cases(47.2%), circulatory system were 21 cases(13.0%), and respiratory system were 15 cases(9.3%). The most common symptom was headache in family medicine and generalized abdominal pain in internal medicine.

Conclusion : There were significant differences in the age distribution, the reasons for questions, and the contents of questions between family medicine and internal medicine.