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Perceived Stress and Coping Strategies in Relation to Body Mass Index: Cross-Sectional Study of 12,045 Japanese Men and Women. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Interaction between Interleukin1-β Gene Polymorphism and Cigarette Smoking on HbA1c in a Japanese General Population. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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P2-213 Association between dietary patterns and serum C-reactive protein among Japanese men and women. J Epidemiol Community Health 2011. [DOI: 10.1136/jech.2011.142976j.46] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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P2-112 Association between PPARG2 Pro12Ala gene variant and HbA1c in a middle-aged Japanese population. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976i.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
BACKGROUND/AIM Results of epidemiological studies concerning the association between smoking and alcohol use and gallstone risk are inconsistent. We examined the relation of smoking and alcohol use to gallstone disease in Japanese men. METHODS We investigated 174 cases having gallstones as determined by ultrasonography, 104 cases of postcholecystectomy state, and 6,906 controls having a normal gallbladder in the consecutive series of 7,637 men aged 48-59 years receiving a retirement health examination at four hospitals of the Self-Defense Forces from 1986 to 1994. Fifty men had been aware of having gallstones. Known gallstones and postcholecystectomy state were combined as known gallstone disease. Smoking and drinking habits were ascertained by a self-administered questionnaire. Statistical adjustment was made for body mass index, glucose tolerance status, Self-Defense Forces rank, hospital, and either cigarette smoking or alcohol use. RESULTS Cigarette smoking was not measurably associated with either prevalent gallstones or postcholecystectomy state, nor with either newly diagnosed gallstones or known gallstone disease. Alcohol use was related to a significant decrease in the prevalence odds of both gallstones and postcholecystectomy state, and the decrease was slightly more profound for known gallstone disease. CONCLUSIONS Cigarette smoking is probably unrelated to the gallstone risk, and alcohol consumption seems to confer protection against gallstone formation.
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Abstract
We investigated the relation between coffee drinking and serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) concentrations among 7313 Japanese men receiving a health examination, excluding former alcohol drinkers and men with a history of chronic liver disease. Serum AST > 40 and/or ALT > 40 U/L was defined as liver inflammation. Adjustment was made for alcohol use, smoking, body mass index, serum marker for hepatitis virus infection, and other possible confounders. Adjusted odds ratios of liver inflammation were 1.00 (reference), 0.80, 0.69, and 0.61 for men drinking < 1, 1-2, 3-4, and > or = 5 cups of coffee daily, respectively. Among 6898 men without liver inflammation, serum AST and ALT were inversely associated with coffee consumption, and alcohol-related rise in AST was attenuated with coffee drinking. These findings suggest coffee may have an effect of suppressing the rise of serum aminotransferase, partly by inhibiting the alcohol-related elevation. Studies regarding biological mechanism are warranted.
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Relationship between serologically diagnosed chronic atrophic gastritis, Helicobacter pylori, and environmental factors in Japanese men. Scand J Gastroenterol 2000; 35:476-81. [PMID: 10868449 DOI: 10.1080/003655200750023723] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Whereas chronic atrophic gastritis is known to be an intermediate stage in gastric carcinogenesis, information is sparse about factors associated with this precancerous lesion except for Helicobacter pylori. METHODS In a cross-sectional study of 566 men aged 50-55 years in the Japan Self-Defense Forces, we examined the relation of H. pylori infection, smoking, alcohol use, and dietary factors to the prevalence of chronic atrophic gastritis as determined by serum pepsinogen I and pepsinogen II (I/II ratio < 3.0. and pepsinogen I < 70 ng/ml). Chronic atrophic gastritis was classified as severe when the pepsinogen I/II ratio was < 2.0, and as moderate otherwise. RESULTS The overall prevalence of chronic atrophic gastritis was 35.7% (202 of 566). The seropositivity of H. pylori was associated with a 10-fold increase in the risk of chronic atrophic gastritis, and the association was much stronger for moderate atrophic gastritis. Neither cigarette smoking nor alcohol consumption was related to the overall risk of chronic atrophic gastritis. Consumption of vegetables and fruits was each unrelated to chronic atrophic gastritis whether examined as a whole or separately for moderate and severe atrophic gastritis. Green tea was related to decreased risk of severe atrophic gastritis, although not statistically significant, whereas garlic consumption showed no protective association. CONCLUSIONS The findings corroborate that H. pylori infection has an important role in the development of chronic atrophic gastritis in middle-aged Japanese men. Green tea consumption may be protective against the advance of atrophic gastritis. Vegetables, fruits, or garlic had no protective effect against the development of atrophic gastritis in the study.
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Coffee drinking and serum gamma-glutamyltransferase: an extended study of Self-Defense Officials of Japan. Ann Epidemiol 1999; 9:325-31. [PMID: 10976859 DOI: 10.1016/s1047-2797(99)00013-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
PURPOSE To examine the effect of coffee drinking on serum gamma-glutamyltransferase (GGT) level in relation to alcohol drinking, smoking, and degree of obesity in middle-aged Japanese men. METHODS From 1986 to 1994, a total of 7,637 male officials of the Self-Defense Forces of Japan aged 48-59 years received a preretirement health examination. Coffee drinking was ascertained by a self-administered questionnaire, and serum GGT level was measured. After excluding 1,360 men with a possible pathologic condition influencing liver enzyme levels and 182 former alcohol drinkers, effect of coffee drinking on serum GGT was examined by a multiple linear regression model and analysis of variance adjusting for alcohol drinking, smoking, and body mass index (BMI). RESULTS The adjusted percentage of difference in serum GGT was -4.3 (95% CI = -5.0; -3.5) per cup of coffee. The inverse coffee-GGT relation was most prominent among men drinking > or = 30 ml of ethanol and smoking > or = 15 cigarettes daily; and positive associations of alcohol and smoking with GGT were attenuated by coffee drinking, more clearly among men with BMI > or = 25.00 kg/m2. Adjusted percentages of difference in serum GGT were -2.6% (p = 0.0003) per cup of brewed coffee, and -5.1% (p = 0.0001) per cup of instant coffee, independently of each other. CONCLUSIONS The present study suggests that coffee consumption may weaken GGT-induction by alcohol, and possibly by smoking. These effect modifications by coffee may differ according to the degree of obesity.
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Abstract
The study aims to examine the relationship between habitual coffee consumption and blood pressure. The subjects were 3336 male self-defense officials aged 48-56 years, who received a preretirement health examination at the Self-Defense Forces Fukuoka Hospital between October 1986 and December 1992. Average coffee intake in the past year was ascertained by a self-administered questionnaire. A significant inverse relation between habitual coffee consumption and blood pressure was found with and without adjustment for alcohol use, cigarette smoking, body mass index, glucose tolerance, and green tea intake. Green tea, another major source of caffeine intake in Japanese, was unrelated to blood pressure. The adjusted mean differences per cup of coffee consumed per day were -0.6 mmHg (95% confident interval [CI]: -0.9 to -0.3, p = 0.0001) in systolic blood pressure and -0.4 mmHg (95% CI: -0.5 to -0.2, p = 0.0002) in diastolic blood pressure. Habitual coffee drinkers had lower blood pressure than non-drinkers at any levels of alcohol use, cigarette smoking, obesity, and glucose intolerance. Our findings consolidate the previous observation that habitual coffee consumption was associated with lower blood pressure.
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Relationship of cigarette smoking, alcohol use, recreational exercise and obesity with serum lipid atherogenicity: a study of self-defense officials in Japan. J Epidemiol 1998; 8:227-34. [PMID: 9816814 DOI: 10.2188/jea.8.227] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We investigated the relationship of cigarette smoking, alcohol use, recreational exercise and obesity with serum lipid atherogenicity because of paucity of epidemiological studies. The subjects were 2,228 male officials of the Self-Defense Forces in Japan, who were aged 49-55 years and received a preretirement health examination in the period from 1991 to 1992. A self-administered questionnaire was used to ascertain cigarette smoking, alcohol use and recreational exercise. Serum total cholesterol (TC) and low-density-lipoprotein cholesterol (LDL-C) were increased with increasing levels of body mass index (BMI) and waist-to-hip ratio (WHR), and decreased with increasing levels of cigarette smoking and alcohol use. Serum high-density-lipoprotein cholesterol (HDL-C) was positively associated with alcohol use and recreational exercise, and negatively associated with cigarette smoking, BMI and WHR. BMI and alcohol use were most strongly associated with both LDL-C/HDL-C and TC/HDL-C ratios with BMI in an atherogenic direction and alcohol use in an antiatherogenic direction. Recreational exercise was weakly associated with less atherogenic lipid profile. BMI was the strongest determinant of serum lipid atherogenicity whereas alcohol use was most antiatherogenic. WHR was less important than BMI in the determination of serum lipid atherogenicity in Japanese men.
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Relation of total and beverage-specific alcohol intake to body mass index and waist-to-hip ratio: a study of self-defense officials in Japan. Eur J Epidemiol 1997; 13:893-8. [PMID: 9476818 DOI: 10.1023/a:1007416322031] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We investigated the independent associations of total and beverage-specific ethanol consumption with body mass index (BMI) and waist-to-hip ratio (WHR) in middle-aged Japanese males, because of the scarcity of epidemiologic data in Japan. The subjects were 2227 male self-defense officials who received a pre-retirement health examination at the Self-Defense Forces Fukuoka, Kumamoto, and Sapporo Hospitals. Data on alcohol intake, smoking, physical activity, and past medical history were obtained from a self-reported questionnaire. Height, weight, and waist and hip girth measurements were obtained at the examination. Multiple linear regression analysis was employed. Alcohol intake was positively and strongly associated with WHR (p = 0.0001), but not associated with BMI after adjustment for lifestyle variables, including either BMI or WHR. Subjects who consumed 15 ml per day or more of shochu ethanol showed a larger WHR than never drinkers, and a dose-response relationship was found. Dose-response relationships to other beverages were not found. Dose-response relationships to other beverages were not found. These findings suggest that alcohol intake is strongly and independently associated with WHR, but not with BMI. Abdominal obesity was positively associated with shochu ethanol, but not with other types of alcohol.
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Anticipation of job loss or job change and cardiovascular risk factors: a study of retiring self-defense officials in Japan. J Epidemiol 1997; 7:161-6. [PMID: 9337514 DOI: 10.2188/jea.7.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Self-defense officials in Japan are to retire at the age of early 50s. This unique situation prompted the authors to investigate whether preexisting morbid conditions cause any difficulty in finding a post-retirement job and whether anticipation of job loss or job change, as measured by the status of post-retirement job and months remaining until retirement, was related to biological cardiovascular risk factors. The subjects were 2,228 male self-defense officials who received a preretirement health examination at three Self-Defense Forces Hospitals from 1991 to 1992; the period in time remaining until retirement ranged from 1-40 months (median 12 months), and 62% had one year or less until the retirement. The defined preexisting illnesses included a wide range of chronic, non-communicable diseases. Overall, the preexisting illness was unrelated to the determination of a post-retirement job. In men having 6 months or less until retirement, however, the security of post-retirement job was less frequent when they had the preexisting illness, especially cardiovascular diseases. In 1,839 men excluding those with the preexisting illness, the period until retirement was not adversely related to obesity, blood pressure, serum lipids, serum uric acid, or glucose intolerance whether the post-retirement job had been secured or not. The findings suggest that the preexisting illness decreases the chance of obtaining a post-retirement job, but do not provide any evidence that anticipation of job loss or job change due to early retirement exerts an adverse effect on biological cardiovascular risk factors.
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Abstract
A tissue uptake experiment was conducted to determine the bioavailability of rumen bacterial Selenium (Se) in mice. The donor animal was wether fed a diet containing 0.2 mg Se/kg dietary dry matter (DM). Ruminal fluid was collected 2 h postprandially. Bacterial-rich precipitate was obtained by differential centrifugation of the ruminal fluids. This was later freeze-dried and mixed in the diet to be used in feeding the mice experiment. Thirty growing female mice with a body wt (mean +/- SD) of 21.4 +/- 0.74 g were housed in plastic cages (5 mice/cage) and allotted equally to three dietary treatments. Diet 1 and Diet 2 were formulated based on AIN-76, except that no Se supplementation in the form of selenite was made in the former. In Diet 3, rumen bacterial matter was 20% of the diet, which gave an equivalent of 0.1 mg Se/kg dietary DM. The other two diets, Diet 1 and Diet 2, had an Se content of 0.025 and 0.1 mg/kg dietary DM, respectively. A 7-d feeding commenced after 7 d of acclimatization of the semipurified diet. Results showed that those mice fed an Se- (selenite) supplemented diet (Diet 2) had higher (P < 0.05) tissue Se concentrations than those mice fed the other two diets. No statistical differences were observed on various tissue Se concentrations between Diet 1 and Diet 3, although the latter diet had higher values. Kidney and liver had the highest Se concentrations compared to the other tissues. This study concludes that bacterial Se collected from the rumen of wether is not fully available for absorption in the intestine of the mice.
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Relationship of cigarette smoking, alcohol use, and dietary habits with Helicobacter pylori infection in Japanese men. Scand J Gastroenterol 1997; 32:651-5. [PMID: 9246703 DOI: 10.3109/00365529708996513] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Little is known of factors determining infection with Helicobacter pylori. METHODS In a cross-sectional study of 566 men aged 50-55 years, who received a preretirement health examination at the Self Defense Forces Fukuoka Hospital between January 1993 and December 1994, we examined the association of smoking, alcohol use, and dietary habits with H. pylori infection. RESULTS The overall seropositivity as determined with IgG antibody was 79.3% (449 of 566). The rank was inversely associated with the infection (trend, P = 0.048). Neither smoking nor alcohol drinking was related to the infection. The prevalence adjusted for rank tended to be lower in men consuming raw vegetables (trend, P = 0.12) daily than those with less consumption. Unexpectedly, the consumption of tofu (soybean curd) was significantly, negatively related to the infection (trend, P = 0.013). The seropositivity was unrelated to the consumption of pickled vegetables, soy paste soup, green tea, or garlic. CONCLUSION The findings suggest that fresh vegetables may be protective against H. pylori infection. The study does not support either an increased risk of the infection associated with salty foods or a protective effect of green tea or garlic.
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Behavioral correlates of plasma sex hormones and their relationships with plasma lipids and lipoproteins in Japanese men. Atherosclerosis 1997; 130:37-44. [PMID: 9126646 DOI: 10.1016/s0021-9150(96)06041-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In contrast to the hypothesis that endogenous testosterone decreases plasma high-density lipoprotein (HDL) cholesterol levels, many, but not all, studies have reported a positive correlation between plasma total testosterone and HDL cholesterol. We examined behavioral correlates of plasma testosterone and estradiol and the relationships between these sex hormones and plasma lipoproteins, in middle-aged Japanese men. Plasma, lipids, including HDL subfractions, total and free testosterone, and total estradiol were determined with 313 men aged 50-54 years who received a preretirement health examination at the Self-Defence Forces Fukuoka Hospital from January to June in 1992. Body mass index and waist-hip ratio were also measured. Smoking habit, alcohol use, and physical activity were ascertained by a self-administered questionnaire. Obesity, especially waist-hip ratio, was a strong correlate of both total and free testosterone, but not of estradiol. Smoking was associated with elevated levels of testosterone without a dose-effect relation. Neither alcohol use nor physical activity was associated with total or free testosterone, but plasma estradiol levels were higher among current alcohol drinkers. HDL and HDL2 cholesterol were unrelated to either total or free testosterone in the univariate analysis, but negatively associated with free, not total, testosterone after adjustment for obesity. HDL and HDL2 cholesterol also were positively associated with estradiol regardless of adjustment for obesity and other covariates. These findings add to evidence for a hypothesis that high levels of endogenous testosterone and low estradiol levels may cause a decrease in plasma HDL cholesterol, thereby being linked with atherosclerosis in middle aged men.
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Helicobacter pylori infection and gastroduodenal ulcer in self-defense officials in Japan. Scand J Gastroenterol 1996; 31:1136. [PMID: 8938910 DOI: 10.3109/00365529609036900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Abstract
Animal experiments have shown a hypocholesterolemic effect of green tea extracts. Only few epidemiological studies have addressed the relation between green tea consumption and serum total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C). This paper examined the relation of green tea consumption to serum lipids and lipoproteins in 2,062 male self-defense officials in Japan, aged 49-55 years, who received a preretirement health examination at three hospitals of the Self-Defense Forces in 1991-1992. A self-administered questionnaire queried the consumption of green tea and a limited number of other dietary items as well as lifestyle characteristics. After adjustment for body mass index, waist-hip ratio, smoking, alcohol use, exercise, rank, and hospital, green tea consumption was inversely associated with serum levels of TC and LDL-C, but not with either high density lipoprotein cholesterol or triglycerides. Rice consumption was positively correlated with green tea consumption, and also was associated independently with lower levels of TC and LDL-C. Additional adjustment for rice, however, did not change the results. Daily drinking of 10 cups of green tea was associated with differences of 6.2 mg/dl in TC (95% confidence interval [CI] 0.4-12.1) and 6.2 mg/dl in LDL-C (95% CI 0.7-11.7). These findings of association of green tea with blood cholesterol hint at a possible causal relationship, which requires confirmation by further studies in humans using different methods.
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Abstract
The relationship between cigarette smoking, alcohol use, and dietary factors and the risk of adenomas of the sigmoid colon was examined in male self-defense officials who received a preretirement health examination at three Self-Defense Forces hospitals in Japan. In the comparison between 228 patients with sigmoid adenomas and 1484 control subjects with normal colonoscopy findings (> or = 60 cm from the anus), a clear dose-response relationship was observed between cigarette smoking and risk of adenoma. After adjustment for rank, body mass index, alcohol use, and physical activity as well as for hospital and survey season, the odds ratios (and 95% confidence intervals (CIs)) for the categories of 0, 1 to 399, 400 to 799, and 800 or more cigarette-years were 1.0, 2.1 (1.2 to 3.5), 2.8 (1.8 to 4.3), and 3.5 (2.1 to 5.8), respectively. Current alcohol drinkers tended to have an increased risk, but without a dose-response relation. Among four types of alcoholic beverages (shochu, sake, beer, and whiskey), only whiskey showed a weak association with risk of adenoma. None of the 13 dietary items studied (including meat and rice consumption) was measurably associated with adenoma risk. The present findings provide additional evidence that cigarette smoking is a risk factor for colon adenomas. It is inconclusive regarding alcohol intake's association with adenoma risk.
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Abstract
We conducted a case-control study, using 429 cases with histologically confirmed sigmoid adenoma, 75 cases with rectal adenoma, and 3101 controls showing normal colonoscopy at least up to 60 cm from the anus. The subjects were male Self-Defense Forces personnel aged 48-56 who received a retirement health examination including a routine sigmoid- or colonoscopy. Lifestyle characteristics were ascertained by a self-administered questionnaire. Smoking in the recent past (< or = 10 years preceding the colonoscopy) and smoking in the remote past (> 10 years before the colonoscopy) were both significantly associated with risk of sigmoid adenoma but not with rectal adenoma as a whole. After reciprocal adjustment for smoking in the two periods, only smoking in the recent past was associated with both sigmoid colon and rectal adenomas. Odds ratios (OR) of sigmoid adenoma (and 95% confidence interval) for the categories of 0, 1-150, 151-250 and > or = 251 cigarette-years were 1.0 (reference), 1.9 (1.3-2.8), 2.1 (1.4-3.0) and 3.0 (1.9-4.7), respectively (P for trend < 0.01), and those for rectal adenoma were 1.0 (reference), 1.2 (0.4 3.2), 3.5 (1.4-8.5) and 2.0 (0.6 6.7), respectively (P for trend = 0.03). Alcohol use was significantly positively associated with sigmoid adenoma, and insignificantly associated with rectal adenoma. Body mass index was significantly positively associated with sigmoid adenoma, especially large ones. No such association was found for rectal adenoma. These findings suggest that smoking, especially in the recent past, and alcohol use are common risk factors for sigmoid colon and rectal adenomas while obesity may be exclusively related to the growth of sigmoid adenoma.
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Relation of waist-hip ratio to glucose tolerance, blood pressure, and serum lipids in middle-aged Japanese males. INTERNATIONAL JOURNAL OF OBESITY AND RELATED METABOLIC DISORDERS : JOURNAL OF THE INTERNATIONAL ASSOCIATION FOR THE STUDY OF OBESITY 1995; 19:632-637. [PMID: 8574273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
OBJECTIVE To investigate whether waist-hip ratio (WHR) influences glucose tolerance, blood pressure, and serum lipids independently of body mass index (BMI). DESIGN Cross-sectional study. SUBJECTS 2,228 male self-defense officials aged 49-55 years in Japan. MEASUREMENTS BMI, WHR, serum lipids, systolic and diastolic blood pressure, and glucose tolerance status according to World Health Organization (WHO) criteria. RESULTS Adjustment was made for smoking, alcohol use, physical activity, and inter-hospital variation in statistical analysis. Adjusted odds ratios of non-insulin-dependent diabetes mellitus (NIDDM) were progressively increased with increasing levels of WHR, but not BMI. Both BMI and WHR were independently positively associated with impaired glucose tolerance to almost the same degree. Adjusted means of blood pressure, total cholesterol, and triglycerides were almost linearly increased with increasing levels of both BMI and WHR, and high-density lipoprotein cholesterol was progressively decreased. Although the associations of BMI and WHR with blood pressure and serum lipids attenuated after mutual adjustment for each, BMI was less influenced by WHR than vice versa, except for triglycerides. CONCLUSION WHR is an important contributor not only to NIDDM but also to impaired glucose tolerance, blood pressure, and serum lipids, although the associations of WHR with blood pressure and serum lipids were generally weaker than those of BMI, except for triglycerides.
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Abstract
The risk of gallstones developing after gastrectomy in middle-aged Japanese men was investigated in a study of 2,738 men aged between 48 and 56 years who underwent both gallbladder ultrasonography (US) and a barium study of the upper digestive tract. It was revealed that 61 men had gallstones, 37 had had their gallbladder removed previously, and 55 had a history of gastrectomy. The prevalence of gallstones was 3.5 times higher in the men who had previously undergone gastrectomy (7.7%) than in those who had not (2.2%) (P = 0.03). Moreover, gallstones tended to be more prevalent in those who had undergone Billroth II gastrectomy (12.5%) compared with those who had undergone Billroth I gastrectomy (5.6%); however, the difference was not significant. These results indicate that gastrectomy using either Billroth I or Billroth II reconstruction predisposes to gallstone formation. Nevertheless, it was estimated that prior gastrectomy was responsible for no more than 5% of gallstones in the study population.
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Gallstone disease among Japanese men in relation to obesity, glucose intolerance, exercise, alcohol use, and smoking. Scand J Gastroenterol 1995; 30:372-6. [PMID: 7610355 DOI: 10.3109/00365529509093293] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Risk factors for gallstones are not fully understood, especially in men. Obesity and other risk factors for gallstone disease were investigated in Japanese men based on gallbladder ultrasonography. METHODS Forty-one men with gallstones, 31 with postcholecystectomy state, and 2044 with a normal gallbladder were identified among 2228 men aged 49-55 years who received a retirement health examination at three hospitals of the Japan Self-Defense Forces between 1991 and 1992. Glucose tolerance was determined with a 75-g oral glucose tolerance test. RESULTS Body mass index was not associated with gallstones, although it was significantly, positively related to postcholecystectomy. Waist to hip circumference ratio tended to be weakly associated with gallstones. Diabetes mellitus was associated only with postcholecystectomy. Smoking, alcohol intake, and physical activity were not measurably related to either gallstones or postcholecystectomy. CONCLUSIONS The present study failed to substantiate an association of gallstone risk with either obesity or any other risk factor. Further observation is needed in view of the limited study power.
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Relationship of alcohol consumption and smoking to plasma cortisol and blood pressure. J Hum Hypertens 1994; 8:891-4. [PMID: 7884787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The role of plasma cortisol in the relationship of alcohol consumption and smoking with BP was investigated in a study of 297 Japanese men, aged 50-54 years, who were not receiving antihypertensive agents. They were admitted to the Self-Defense Forces Fukuoka Hospital between January and June 1992 for a detailed pre-retirement health examination. A history of alcohol consumption and cigarette smoking were determined from a self-administered questionnaire. The plasma level of cortisol and BP were determined in the morning of the first admission day. While the plasma level of cortisol was positively related to systolic and diastolic BP, cortisol levels did not vary substantially with alcohol consumption. Both BP and plasma cortisol levels were lower among current smokers than nonsmokers. The lower BP observed among current smokers was ascribed in part (about 20-30%) to the plasma cortisol levels. While the cortisol levels may contribute the lower BP among current smokers, the data did not support its role in mediating the alcohol-BP relationship.
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Fatherhood and distal adenomas of the large bowel: a study of male self-defense officials in Japan. Cancer Epidemiol Biomarkers Prev 1994; 3:655-9. [PMID: 7881338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Parity has been studied extensively as a risk factor for colorectal cancer but has not been definitively shown to be associated with altered risk. In a few studies, risk of colorectal cancer in childless men has been compared to risk in men with children, but results have not been consistent. We analyzed the association of fatherhood with risk of colorectal adenomas in male self-defense officials (ages 49-55) in Japan. The study participants received a preretirement health examination including flexible sigmoidoscopy at Self-Defense Forces hospitals in Japan from January 1991 through December 1992. The examinations identified 265 cases with rectal or sigmoid adenomas and 1480 controls with normal examinations up to 60 cm from the anus. Data on marital status, number of children, long-term work assignment away from wife and children, and other lifestyle variables were obtained by means of a self-administered questionnaire prior to physical examination. Multiple logistic regression analysis assessed the risk of adenomas in relation to number of children, marital status, long-term work assignment away from family, and military rank, with adjustment for cigarette smoking, alcohol intake, dietary variables, body mass index, and recreational physical activity. In this relatively homogeneous group, more than 98% of both cases and controls were currently married, and more than 93% had children. The adjusted odds ratio for the association of adenomas with fatherhood was 0.4 (95% confidence interval, 0.2-0.8). Marital status and work assignment away from the family were not associated with adenoma risk. These findings suggest that colorectal adenomas and perhaps cancer risk may be associated with childlessness in men.
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Abstract
The relationship of smoking, alcohol use, body mass index, and physical activity to glucose tolerance was studied in 2407 male self-defense officials aged 49-56 years who received a health examination before retirement at the Self-Defense Forces Fukuoka Hospital from October 1986 to December 1990. Body mass index (BMI) was significantly, positively related to impaired glucose tolerance (IGT) and noninsulin-dependent diabetes mellitus (NIDDM); after adjustment for rank of the Self-Defense Forces, smoking, alcohol use, prior diagnosis of diabetes mellitus, and parental history of the disease, odds ratios (ORs) of IGT and NIDDM for the highest (> or = 25.5 kg/m2) versus lowest (< 21.6 kg/m2) quintile of BMI were 4.2 [95% confidence interval (CI) 2.6-6.8] and 4.6 (95% CI 2.3-9.3), respectively. Cigarette smoking was weakly, positively associated with IGT and strongly so with NIDDM; adjusted ORs of IGT and NIDDM for 800 cigarette-years or more versus never smoking were 1.6 (95% CI 1.1-2.5) and 4.1 (95% CI 1.8-9.3), respectively. The prevalence of IGT and NIDDM tended to be decreased among men with high physical activity as measured by the time spent for vigorous exercise in leisure time. There was virtually no association between alcohol consumption and either IGT or NIDDM. The findings suggest that obesity and cigarette smoking are important factors in the development of glucose intolerance in middle-aged Japanese men.
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Behavioural and biological correlates of serum uric acid: a study of self-defence officials in Japan. Int J Epidemiol 1994; 23:517-22. [PMID: 7960375 DOI: 10.1093/ije/23.3.517] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND In Japan epidemiological data on correlates of serum uric acid are sparse. METHODS Behavioural and biological correlates of serum uric acid were investigated in 2487 men who received a retirement health examination at the Self-Defence Forces Fukuoka Hospital from October 1986 through 1990, excluding those under medication for hyperuricaemia, hypertension or hyperlipidaemia. RESULTS Multiple regression analysis demonstrated that serum creatinine was the strongest correlate followed by serum triglycerides, body mass index and diastolic blood pressure; these four variables accounted for 16% of the overall variation in serum uric acid. Serum total cholesterol, alcohol intake and past smoking were positively associated with serum uric acid levels while diabetes mellitus and serum high density lipoprotein (HDL) cholesterol were negatively related to serum uric acid; these five variables additionally explained 2% of the variation. Although an independent impact was minimal, beer consumption was significantly associated with an elevated level of serum uric acid after allowing for the previously mentioned correlates. CONCLUSIONS Serum creatinine and triglycerides are major correlates of serum uric acid in Japanese men. Our data add to the body of evidence suggesting that weight control, avoiding excessive drinking and adequate control of hypertension are beneficial in the prevention of hyperuricaemia.
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Abstract
The relation between obesity and adenomatous polyps of the sigmoid colon was investigated in male self-defense officials who received a retirement health examination at three hospitals of the Self-Defense Forces in Japan between January 1991 and December 1992. Body mass index (BMI) and waist-hip circumference ratio (WHR) were used as indices of obesity. A total of 228 adenoma cases and 1484 controls with normal sigmoidoscopy were identified in 2228 men: cases having small adenomas (< 5 mm in diameter) and those with large adenomas (5 mm or greater) numbered 115 and 102, respectively. Smoking, alcohol use, physical activity, rank, and hospital were controlled for by multiple logistic regression analysis. BMI and WHR were classified into four levels using the 30th, 60th, and 90th percentiles of each distribution in the control as cut-off points. There was a significant two-fold elevation in the overall adenoma risk among men at the highest BMI level (> or = 26.95) compared with those at the lowest level (< 22.48), but the risk did not linearly increase: a similar increase was also noted for large adenomas. While WHR was only weakly related to the overall adenoma risk, the risk of large adenomas progressively increased with increasing levels of WHR; odds ratio (OR) 2.9 (95% confidence interval (CI) 1.4-5.9) for the highest (> or = 0.958) versus lowest (< 0.878) levels. BMI was not materially associated with adenoma risk after additional adjustment for WHR, but a positive association between WHR and large adenomas was independent of BMI: OR 3.4 (95% CI 1.5-7.6) for the highest versus lowest levels. These findings suggest that obesity is associated with an increased risk of colon adenomas, probably with adenoma growth.
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Abstract
The relation of coffee drinking and other behavioral factors to serum gamma-glutamyltransferase (GGT) was examined in 2,494 male self-defense officials aged 48-56 years, who received a retirement health examination at the Self-Defense Forces Fukuoka Hospital between October 1986 and December 1990. Coffee, but not green tea, consumption was inversely related to serum GGT independently of body mass index, alcohol use, and smoking. All of the latter variables were also independently and positively associated with serum GGT. Lower levels of serum GGT associated with coffee drinking were more evident among heavier alcohol drinkers and also among heavier smokers. The findings suggest that coffee may inhibit the inducing effects of alcohol and possibly of smoking upon GGT in the liver.
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Alcohol consumption and blood pressure: an extended study of self-defence officials in Japan. Int J Epidemiol 1994; 23:307-11. [PMID: 7916005 DOI: 10.1093/ije/23.2.307] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND It remains controversial whether the relation between alcohol intake and blood pressure is linear or non-linear. METHODS The relation between alcohol intake and blood pressure was investigated in 2341 male self-defence officials who received a preretirement health examination at the Self-Defense Forces Fukuoka Hospital between October 1986 and December 1990. Average alcohol intake in the past year was ascertained by a self-administered questionnaire. The study excluded past drinkers, and allowed for smoking, body mass index and glucose tolerance. RESULTS Blood pressure was higher at higher levels of alcohol intake across the range from 0 to 40-59 ml of alcohol per day, but was not progressively higher in men consuming > or = 60 ml per day. Blood pressure was significantly higher even among light drinkers (< 20 ml per day) compared to non-drinkers; adjusted mean differences were 3.1 mmHg (95% confidence interval (CI): 1.1-5.2) in systolic pressure and 2.1 mmHg (95% CI: 0.7-3.5) in diastolic pressure. CONCLUSIONS Our findings do not support the existence of a threshold in the relation between alcohol and blood pressure.
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32
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Abstract
The prevalence and risk factors of gallbladder polyps diagnosed by ultrasonography were investigated in 2739 male self-defense officials who received a retirement health examination at the Self-Defense Forces Fukuoka Hospital, Japan, between October 1986 and December 1990. Excluding 38 men whose gallbladder had been removed previously, 143 men were found to have gallbladder polyps. The overall prevalence of gallbladder polyps was 5.3%. The relation between gallbladder polyps and smoking, alcohol use, body mass index, glucose tolerance, and serum lipids was examined in 137 men with stoneless polyps and 2495 normal subjects. Whereas smoking tended to be inversely associated with gallbladder polyps, none of the other lifestyle and clinical variables were related to this condition. Thus the reported risk factors of gallstones had no relation to gallbladder polyps.
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33
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Abstract
Based on screening ultrasonography of the gallbladder in 2756 men who received a retirement health examination at the Self-Defense Forces Fukuoka Hospital, Japan, during the period of 1986 to 1990, we compared serum lipid levels among 61 men with gallstones, 38 who had the gallbladder removed previously, and 2494 with a normal gallbladder. In univariate analysis, men having gallstones and those who had had a cholecystectomy had lower concentrations of total and low-density-lipoprotein (LDL) cholesterol than did control subjects, although the differences were not statistically significant. After adjustment for body mass index, smoking, alcohol use, and glucose tolerance, inverse associations of cholecystectomy with total and LDL cholesterol levels were more pronounced and statistically significant. There was no appreciable difference in high-density-lipoprotein (HDL) cholesterol and triglycerides between control subjects and men either with gallstones or after cholecystectomy. The present study did not support a positive relation between gallstones and serum triglyceride levels and an inverse one to HDL cholesterol, which have been reported elsewhere. The findings on total and LDL cholesterol are consistent with some, but not all recent studies.
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Serum lipids and left-sided adenomas of the large bowel: an extended study of self-defense officials in Japan. Cancer Causes Control 1993; 4:117-21. [PMID: 8481490 DOI: 10.1007/bf00053152] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
In the on-going study of men retiring from the Self-Defense Forces in Japan, we previously reported that serum total cholesterol was not related to colorectal adenomas but that men with low levels of serum high-density lipoprotein (HDL) cholesterol had an elevated adenoma risk. We examined whether the previous observation was reproducible in a different set of data accrued subsequently in the study. Serum total cholesterol, HDL-cholesterol, low-density lipoprotein (LDL) cholesterol, and triglycerides were compared between 138 cases of colorectal adenomas at the depth of 60 cm or less from the anus and 909 controls with normal sigmoidoscopy in the period from October 1988 to December 1990. There was virtually no relation between adenoma risk and any of the serum lipids studied with or without adjustment for smoking, alcohol use, and body mass index. In the analysis combining the earlier and present data, however, men with large adenomas (> or = 10 mm, n = 25) tended to have lower levels of total cholesterol and LDL-cholesterol compared with controls (n = 1,612); adjusted mean differences were -0.21 mmol/l (P = 0.24) and -0.26 mmol/l (P = 0.13), respectively. These findings are inconclusive, but hypocholesterolemia may be associated with the growth of colorectal adenoma.
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35
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Abstract
The relation of dietary factors to the risk of adenomas of the sigmoid colon was examined in men receiving a retirement health examination at the Self-Defense Forces Fukuoka Hospital between October 1986 and 1990. A total of 187 adenoma cases and 1557 controls with normal colonoscopy were identified in the series. Cases were further classified into small-adenoma (< 5 mm, n = 78) and large-adenoma (> or = 5 mm, n = 67) groups. The consumptions of selected foods and beverages were ascertained before colonoscopy by means of a self-administered questionnaire. After adjustment for smoking, alcohol use, rank and body mass index, low rice consumption and high meat intake were independently associated with an increased risk of large adenomas. The risk of small adenomas was not related to either rice consumption or meat intake. Adjusted odds ratios of large adenomas for the low, intermediate and high consumption levels of rice were estimated to be 1.0 (referent), 0.83 and 0.43, respectively (trend P = 0.08), and the corresponding figures for meat consumption were 1.0 (referent), 1.58 and 2.38, respectively (trend P = 0.02). The findings suggest that low rice consumption and high meat intake may promote the growth of colon adenomas, thereby increasing the risk of colon cancer.
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Prevalence of gallstone disease in relation to smoking, alcohol use, obesity, and glucose tolerance: a study of self-defense officials in Japan. Am J Epidemiol 1992; 136:787-94. [PMID: 1442744 DOI: 10.1093/aje/136.7.787] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Risk factors of gallstone disease were investigated in male self-defense officials who received, between October 1986 and December 1990, a retirement health examination at the Self-Defense Forces Fukuoka Hospital, Fukuoka, Japan. Gallbladder ultrasonography, successfully performed with 2,739 of 2,756 men, found 61 men with gallstones and 38 men with previous removal of the gallbladder; the overall prevalence of gallstone disease was 3.6%. Multiple logistic regression analysis assessed the risk of gallstone disease in relation to smoking, alcohol use, body mass index, glucose tolerance, and rank. Alcohol use was associated with a decreased risk, and body mass index was positively related to gallstone disease. Men with impaired glucose tolerance had a slightly elevated risk, whereas diabetes mellitus was not associated with gallstone disease. Analysis for prevalent gallstones and the postcholecystectomy state showed an inverse association of alcohol use with the latter; a positive association with impaired glucose tolerance was also confined primarily to the latter condition. These findings provide little support for a protective effect of alcohol use in the formation of gallstones. It was inconclusive whether impaired glucose tolerance was associated selectively with postcholecystectomy.
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37
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Abstract
The relationship of adenomatous polyps of the sigmoid colon with cigarette smoking and alcohol use was investigated in male self-defense officials in Japan. In the comparison between 116 cases and 930 controls, total ethanol intake was not at all associated with the risk of adenomatous polyps, but cigarette smoking was strongly related to adenomatous polyps. After adjustment for total ethanol intake, body mass index and rank, odds ratios (and 95% confidence interval) for the categories of 0, 1-399, 400-799, and 800 or more cigarette-years were 1.0 (referent), 2.3 (1.1-4.6), 2.9 (1.5-5.4) and 3.2 (1.6-6.5), respectively. Among five alcoholic beverages (sake, shochu, beer, whiskey including brandy, and wine), only whiskey consumption was weakly related to the risk of adenomatous polyps. Because the present findings disagree with an earlier observation on self-defense officials, we examined the association with smoking and alcohol use separately for small (less than 5 mm) and large (greater than or equal to 5 mm) adenomas, combining data from these two studies. Cigarette smoking was more strongly associated with small adenomas while the positive association with certain alcoholic beverages were largely confined to large adenomas. These findings suggest that cigarette smoking and alcohol use may be linked with the development of adenoma at different stages of colon tumorigenesis.
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Abstract
METHODS. The relation between green tea consumption and serum lipid concentrations was examined using cross-sectional data on 1,306 males who received the retirement health examination at the Self-Defense Forces Fukuoka Hospital between October 1986 and December 1988. RESULTS. After adjustment for rank, smoking, alcohol use, physical activity, and body mass index, serum total cholesterol levels were found to be inversely related to the consumption of green tea while no association was noted with serum triglycerides and high-density lipoprotein cholesterol. Adjusted mean concentrations of total cholesterol were 8 mg/dl lower in men drinking nine cups or more per day than in those consuming zero to two cups per day. Serum cholesterol levels were inversely associated with traditional Japanese dietary habits (intake of rice and soy bean paste soup) and positively associated with Westernized habits. Additional adjustment for these dietary variables did not alter the inverse relation between green tea and total cholesterol.
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Lifestyles, glucose tolerance and blood pressure in male self-defence officials in northern Kyushu, Japan. J Hum Hypertens 1992; 6:101-5. [PMID: 1597842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Evidence on determinants of BP is mostly derived from studies in western populations. The relationship of BP with lifestyle variables and glucose tolerance was studied in 1,302 male self-defence officials aged 49-56 years who received a health examination before retirement at the Self-Defense Forces Fukuoka Hospital from October 1986 to December 1988. Those with treated hypertension or diabetes mellitus and those with conditions affecting BP levels were excluded from the study. In multiple regression analysis, alcohol use, body mass index and glucose intolerance were strongly associated with elevated BP while there was an inverse relation between cigarette smoking and BP. Physical activity expressed as the time spent in vigorous exercise was not associated with either systolic or diastolic BP. These findings indicate that alcohol use, obesity and glucose intolerance are also important determinants of BP in male Japanese, and that cigarette smoking is a potential covariate in the study of BP.
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Physical activity, dietary habits and adenomatous polyps of the sigmoid colon: a study of self-defense officials in Japan. J Clin Epidemiol 1991; 44:1255-61. [PMID: 1941019 DOI: 10.1016/0895-4356(91)90158-6] [Citation(s) in RCA: 93] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Physical activity and dietary habits were compared between 80 men with adenomatous polyps of the sigmoid colon and 1148 men with normal colonoscopy among male retiring self-defense officials. Physical activity as expressed in terms of time spent doing strenuous activities during leisure time was inversely related to the risk of adenomatous polyps. Controlling for rank, smoking, alcohol and body mass index (BMI), odds ratios for the categories of 0, 1-59, 60-119 and greater than or equal to 120 minutes per week were 1.0, 0.88, 0.70 and 0.44, respectively (trend p = 0.015). Among a limited range of foods and beverages, the consumption of rice, green tea and instant coffee tended to be associated with a decreased risk of adenomatous polyps. Although the associations observed with dietary habits still need to be substantiated, the findings on physical activity lend further evidence to the hypothesis that physical activity may be protective in the development of colon cancer.
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Alcoholic beverages and adenomatous polyps of the sigmoid colon: a study of male self-defence officials in Japan. Int J Epidemiol 1990; 19:848-52. [PMID: 2084011 DOI: 10.1093/ije/19.4.848] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The drinking habits of 86 men with adenomatous polyps of the sigmoid colon were compared to those of 1184 men with normal colonoscopy among middle-aged male self-defence officials. After adjustment for rank, smoking history and rice consumption, total ethanol intake was positively associated with the risk of adenomatous polyps. The odds ratio (OR) was 2.4 (95% confidence interval (CI) 1.0-5.5) for men consuming at least 60 ml of ethanol per day. Among five alcoholic beverages (shochu, beer, sake, whiskey and wine), both sake and beer showed a dose-response relationship with the risk of adenomatous polyps although the association with beer was less striking. Shochu was the largest source of ethanol intake in the study population, but there was virtually no association between shochu consumption and adenomatous polyps. Men drinking wine had a significantly increased risk, but these men were too few to examine the relation in detail. The findings suggest that the consumption of specific alcoholic beverages rather than ethanol itself is associated with an increased risk of adenomatous polyps of the sigmoid colon.
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