We examined the relation of physician's clinical special specialty, personal health habits, and health related beliefs to their practices in counselling about smoking.
A self administered questionnaire including 40 1tems measuin these attitudes was delivered to residents of Family Medicine, Intermal nedinine and surgical Departments which are in Seoul in 1989.
Following results were obtained.
1. Smoking residents counsel less freguently than nonsmoking residents.
2. Residents who are effective in counselling about smoking counsel more aggressiveely.
3. Surgeons counsel less fnguently than nonsurgeons, even after controling for differences in smoking related attitudes and personal habits.
4. residents who know danger about smokin and have an obligation to counsel about smoking counsel more actively.
5. Residents who know how to counsel about smoking counsel more aggresively.
6. Barriers for counsel about smoking were time consuming, inswfficient paying for counselling and difficarly on counselling.

Child obesity is the new health problem nowadays and its etiologic factors are still obscure and undefined. For studying the factors affecting child obesity, we performed health screenining for 3,053 primary school children about their height, weight, triceps skin fold thickness and selected 260 children with Power index over 2.8x10 as obese group. Then the control group of 450 children was chosen by random sampling from remaining children matching age and sex with obese children. The 37.3% of both groups were answered for our questionnare by single mail-reply method.
The results were as follows ;
1. Other familial factors as physical socioeconomical, emotional factors showed no significant differences between both groups.
2. Sleeping duration of obese group was lesser than that of control group.(P<0.05)
3. Parental weight and body mass index were correlated with the power index of their children with The coefficient of 0.272, 0.312 respectively.
So we conclud that child obesity is mainly affected by their parental weight and BMI, which suggest genetic factor is the main cause of child obesity.

Stress is purported to be a major cause of non-ulcer dyspepsia, defined here as non-ulcer dyspepsia where peptic ulcer, esophagitis, acute gastroduodenitis, and cancer are excluded by endoscopy. The aim of the present study was to determine if stress, as measured by major life events(SRS, Social Readjustment Scale) and degree of stress perception(BEPSI), was associated with non-ulcer dyspepsia. The life change scores during the year before the diagnosis of non-ulcer dyspepsia and BEPSI scores in 88 patients were compared with those in 81 selective non-matched community controls. The negative life change scores in non-ulcer dyspepsia patients were significantly higher than those in controls(P<0.05) but there were no significant differences in positive and total life change scores between two groups. The BEPSI scores in non-ulcer dyspepsia patients were more significantly higher than those in controls(P<0.01). It was found that BEPSI scores were moderately correlated with negative life change scores(r=0.36, P<0.001) but not with positive scores. The above results indicate that the cause of non-ulcer dyspepsia may be associated with negative stresser via stress perception.

Fatty liver is a common problem caused by several etiologies and can be reversed by removal of contributing factors.
In this study, age and sex distribution, clinical features, contributing factors, blood chemistry and hepatitis B viral markers were evaluated in 326 patients with fatty liver diagnosed by ultrasonography who were admitted by OPD of Family Medicine in Asan Medical Center from June 1989 to May 1990.
The following results were obtained.
1) The mean age of 326 cases was 47.8 years old and the male and female ratio was 2.3:1
2) Chief complaints were fatigue or malaise(13.2%), abdominal discomfort(12.9%), indigestion(10.7%), right upper quadrant discomfort(9.8%), abnormal transaminase(8.0%) and asymptomatic cases were 162 cases(49.7%).
3) Past medical histories were hypertension(10.1%), diabetes mellitus(5.2%), chronic liver diseases(4.9%), fatty liver(3.7%), hyperlipidemia(2.5%) etc.
4) Contributing factors of fatty liver were overweight(61.3%), unknown etiology(27.9%), alcohol(12.9%), hyperlipidemia(11.0%), diabetes mellitus(5.5%) in order of frequency and there were more than one contributing factors in 15.3%.
5) HBs Ag positive cases were 3.9% and any of HBV marker positive cases were 81.9%
6) At the time of diagnosis, AST(aspartate transferase) level was increased in 37.7%, ALT(alanine transferase) level in 38.3%, alkaline phosphatase in 7.4%, rGT(r-glutamyl transferase) in 13.8%, fasting blood sugar in 5.5%, cholesterol in 6.7%, triglyceride in 11.0%.