An investigation was made of the health conditions of the adult residents (age: 20-74) in an agricultural district of northern Kyushu, through a questionnaire and health examination. A total of 639 individuals responded to our investigation. Health-related habits such as alcohol drinking, cigarette smoking and exercise, the degree of obesity, and their relations with serum total cholesterol (TC) and high density lipoprotein cholesterol (HDL) were studied.
The levels of TC and HDL and lifestyles in this district were not particularly different from those in other districts of the nation. Numbers of heavy drinkers and heavy smokers were found larger in farmers than in non-farmers. Farmers got less exercise than non-farmers. Worthy of note is the fact that obesity prevalence was higher among males than females in both farmer and non-farmer groups. Mean TC levels were slightly lower and HDL levels were slightly higer in farmers than in non-farmers.
Four years after the investigation, a follow-up survey was made. Age-adjusted mean TC levels had been up by 15-17 mg/dl (p<0.01), but HDL was almost at the same level (only 1 mg/dl increase) both in farmers and non-farmers. Covariance analysis was made to assess the relations of each health-related habit and obesity with TC and HDL. The results showed obesity was positively correlated with increased levels of TC, while alcohol consumption, cigarette smoking and exercise had little bearing on TC levels. The relations with HDL levels were weakly positive for alcohol consumption, and weakly negative for both cigarette smoking and obesity. No definite association was observed between exercise and HDL levels.
These findings suggest that there is no significant difference between farmers and non-farmers with respect to health practices and serum lipids. This also suggests that once wide differences in lifestyle between the two groups have disappeared.

　　To ensure the safe work of elderly farmers, we focused on the features of non-fatal, fall-related injuries not due to agricultural machines. Farmers’ compensation injury claims were utilized to characterize the fall-related injuries at work in Fukuoka prefecture between 2008 and 2009. A total of 1,040 (630 men) farmers’ compensation injury claims were analyzed. The age group with the highest percentage of fall accidents was 75 to 79 years for men, and 70 to 74 years for women. For the female group (≥65 years of age) compared with the reference group (≤64 years of age), the percentage of hip/back injuries by falls/slipping was higher (19.2% vs. 10.7%;p<0.05), but the percentage of hand/wrist injuries were lower (6.7% vs. 25.0%;p>0.05). The ladder/step ladder was the most frequent source of injury, causing falls/loss of balance in the female group, but the percentage was lower than that in the reference group (32.3% vs. 50.0%;p<0.05). Inclines were another source of injury due to falls/loss of balance in the female group with a percentage higher than that in the reference group (14.7% vs. 11.5%;p<0.05), but the tree/tree branch were sources of injury with a lower percentage (7.4% vs. 15.4%;p<0.05). Vegetable field/tea field were places of injury due to falls/tripping with a higher percentage in the female group vs the reference group (31.0% vs. 15.0%;p<0.01), but the barn/warehouse were places of injury with a lower percentage in the female group (8.5% vs. 30.0%;p<0.01). Fracture was the leading form of injury in all three types of fall accidents with a higher percentage among female farmers compared with male farmers (falls/slipping:62.5% vs. 35.5%, p<0.01;falls/loss of balance:61.8% vs. 45.9%, p<0.01;falls/tripping:49.3% vs. 34.4%, p<0.05). Our data suggest useful information that should be considered in ensuring the safe work of elderly farmers.

Background: Recently a new direct assay for measurement oflow-density lipoprotein cholesterol has been developed. The purpose of this study was to evaluate the new method and elucidate the association of lifestyle factors with the serum levels of lowdensity lipoprotein cholesterol determined by the direct assay (LDLC/d) among healthy adults in a rural district. At the same time the levels of low-density lipoprotein cholesterol were worked out using the Friedewald formula (LDLC/f) and a comparison was made between LDLC/d and LDLC/f.
Method: Data obtained during the medical checkups in 1998 were used. LDLC/d was estimated by use of the direct assay, Cholestest (Daiichi Pure Chemicals, Japan). The subjects consisted of 678 middle-aged men and women ranging from 40-65 years of age. Co-variance analysis was performed to examine the association of lifestyle factors with lipid and lipoprotein levels.
Results: An inverse relationship was observed between LDLC/d and alcohol drinking among both male and female subjects. The body mass index (BMI) was positively related with LDLC/d among female subjects. Eating between meals was positively related with LDLC/d among males. The association of LDLC/d with these lifestyle factors was stronger than that of LDLC/f. The levels of LDLC/d weresignificantly higher than LDLC/f, suggesting that a different classification of hypercholesterolemia could be formulated by those two levels.
Conclusion: These results indicated that LDLC/d has an advantage over LDLC/f. Further research should focus on the standardization of themethod using LDLC/d to categorize the type of hypercholesterolemia.

Background: Behavior modification approaches involve various strategies of cognitive therapy. There is increasing interest in adopting such approaches in order to achieve more modest and sustainable weight control and also prevent the prevalence of hypercholesterolemia.
Objective: To better understand the risk factors associated with the development of hypercholesterolemia, we examined the relationship between changes in eating behavior based on cognitive therapy and serum low density lipoprotein cholesterol (LDLC) levels. In addition, the outlook for such individuals, lifestyle improvement was also examined based on a behavior modification approach.
Research methods: Data were obtained during regular medical checkups in 1999 from subjects. They consistied of 611 males and females ranging from 40 to 65 years of age in Kyushu, Japan. A co-variance analysis was performed to examine the independent relationship between eating behavior and the LDL-C levels.
Results: “Overeating” when not related to cognitive restraint showed a considerably strong correlation with the LDL-C levels among male subjects. In contrast, both “unplanned eating” and “pessimistic thoughts concerning dieting” were strongly associated with the LDL-C levels among female subjects. Regarding lifestyle improvement, the need to lose weight and exercise was accepted by 40-50% of the subjects.
Discussion: Male subjects need to better recognize their overeating behavior: for example, they need to understand the influence of advertising for many high-calorie fast foods. In addition, they should limit their intake of high-calorie foods and try to only eat at regular meal times. Female subjects should prepare only as much food as will be eaten at one meal. Moreover, female subjects also need to modify their pessimistic thoughts concerning dieting: for example, if they become fat, they often do not try to improve their eating habits because they assume that getting fat is unavoidable because of their innate constitution. These features of cognitive eating behavior provide both barriers and opportunities for changing LDL-C levels. Accordingly, future research needs to focus on the relationship between such cognitive behavior and the LDL-C levels.

OBJECTIVES: The purpose of this study was to evaluate the relationship between circulating serum leptin concentrations and regulation of body weight longitudinally among Japanese men and women. DESIGN: Ten-year retrospective study. SUBJECTS: A total of 328 Japanese men and women, who at baseline (2000) were 40-65 years of age, were free of hypertension, cardiovascular diseases, diabetes mellitus and hypercholesterolemia. They completed detailed lifestyle questionnaires. MEASUREMENTS: Baseline serum leptin concentrations and 10-year weight changes. RESULTS: The average levels of serum leptin were 2.93±1.47ng/ml in men and 5.67±3.00ng/ml in women. Subsequently weight gain was observed among 52% of men and 46% of women. The average gain in weight per year was 1.0±0.8kg in men and 1.3±0.9 kg in women. The observed association between weight gain and leptin concentration was limited to men with body mass index (BMI) of 18.5-25.0kg/m² in 1990, among whom a significant correlation was observed between log-transformed leptin levels and weight gain (r=0.281, p=0.002). CONCLUSION: These results suggest that elevated serum leptin concentrations among normal weight men may be used as an indicator of both leptin resistance and subsequent weight gain.

Background: The lack of information regarding nonfatal agricultural injuries has been recognized as an obstacle for effective injury prevention. The aim of this study was to describe gender differences in the pattern of nonfatal agricultural injuries between the years 2008 and 2009.Methods: Farmers’ compensation injury claims were utilized to determine the mechanisms involved (machinery, non-machinery, and traffic), types of accident, sources of injury, kinds of injury, body parts affected place of injury, work being performed at the time of injury, and length of hospitalization. Agricultural injuries were identified using the International Classification of External Causes of Injury (ICECI). The Statistical Analysis System (SAS) software was used for all statistical analyses. Study variables were compared using the Mantel-Haenszel chi-square test.Results: A total of 2,729 (1,921 males) farmers’ compensation injury claims were analyzed. There were approximately 9 times as many nonfatal agricultural machinery injuries in males compared with females. The most common machinery injuries were cuts resulting from a rotary blade (31%) for males and injuries caused by being struck by a machine (24%) for females in the 65–89 years of age group. The male:female ratio of non-machinery injuries averaged 2:1 (actual numbers of 1,293 and 676, respectively), but the percentage was higher for females (83.7%) than males (67.3%). For both males and females in the 65–89 years of age group, the main source of non-machinery injuries was slopes, the main type of accident was falling/slipping, the leading kind of injury was fracture, and the main work being performed was harvesting. Female farmers had a greater risk of prolonged hospitalization (more than 30 days) compared with males (p < 0.05).Conclusions: Gender is an important factor to consider in the interpretation of nonfatal agricultural injuries. A greater number of males had machinery injuries than females; however, a higher percentage of females had non-machinery injuries than males. Further research will be needed to understand the role of differential job tasks within agriculture in explaining the difference in risk.

Serum levels of total high-density lipoprotein cholesterol (HDL-C) and its subfractions (HDL₂-Cand HD_L3-C) were measured in 227 healthy Japanese adults. These values were related to a number of lifestyle factors.
On co-variance analysis, alcohol drinking had an independent contribution to HDL-C and HDL₃-C (p<0.05) in males. Cigarette smoking showed no association with subfractions of HDL-C in males. Three physical activities-sport, work and leisure time activity-had no significant association with subfractions of HDL-C. The degree of obesity as expressed by body mass index (BMI) was significantly negatively related (p<0.05) to HDL-C and HDL₂-C levels among females. Among males, although a trend test showed no statistically significant relation to BMI, HDL-C and HDL₂-C levels were significantly higher (p<0.05) in the normal group (20≤BMI<25) than in the obese group (BMI≥25).

OBJECTIVES: With the spread of new cultivation methods of strawberries, working conditions have been changed in recent years. Strawberry growers have also been advanced in age. And now, the need to take new measures against physiological fatigue in strawberry growers has become pressing. We investigated the relationship between physiological fatigue and risk factors among middle-aged strawberry growers due to a paucity of such epidemiological studies. DESIGN: Cross-sectional study. Questionnaires were mailed to strawberry growers. SETTING: A rural district in southern part of Japan. SUBJECTS: A total of 1,113 healthy strawberry growers (681 men and 432 women) who were 40—69 years of age. RESULTS: Prevalence of low back pain was the highest (74.0% of males and 73.8% of females), followed by shoulder stiffness and/or pain (49.6% of males and 60.4% of females), and eyestrain (45.2% of males and 50.9% of females). After adjustment of age, working hours, and sleeping hours using a logistic regression analysis, low back pain had the strongest association with agricultural-chemicals spraying among males (odds ratio 2.0; 95% confidence interval 1.4 to 2.8), but there was no significantly association among females. Shoulder stiffness and/or pain had the strongest association with removing old leaves among males (odds ratio 1.5; 95% confidence interval 1.1 to 2.2), and with agricultural-chemicals spraying among females (odds ratio 1.6; 95% confidence interval 1.1 to 2.4). Eyestrain had the strongest association with strawberry sorting among males (odds ratio 2.7; 95% confidence interval 1.9 to 3.8) and with strawberry harvesting among females (odds ratio 3.2; 95% confidence interval 2.0 to 5.1). CONCLUSON: Although the main physiological fatigue among males and females were similar in prevalence, related risk factors differed, and thus the results suggest that it is necessary to take measures against physiological fatigue in consideration of sex difference in the case of middled-aged strawberry growers.
Fatigue <1> ; Relationship by association ; Risk Factors ; Strawberry ; Statistical Prevalence

Objective: Job satisfaction and mental distress may contribute to mental illness, particularly in regard to depression and even suicide. The aim of this study was to investigate the level of job satisfaction and its relationship to the level of mental distress among farmers in comparison to non-farming rural residents. Materials and Methods: A cross-sectional questionnaire survey of 7,000 rural residents was performed to assess the level of job satisfaction and mental distress. Mental distress was measured using the 12-item General Health Questionnaire (GHQ-12). The adjusted odds ratios and their 95% confidence intervals were calculated by means of multivariate logistic regression models. Results: A total of 5,364 rural residents (1,888 farmers and 3,476 non-farmers) responded, therefore yielding a response rate of 76.6%. Twenty-five percent of the farmers and 24 percent of non-farmers were either very dissatisfied or somewhat dissatisfied with their jobs. Twenty-five percent of the farmers and 29 percent of non-farmers had mental distress (GHQ score of 4 or above). The crude odds ratio of mental distress among dissatisfied farmers in comparison to satisfied farmers was 4.38 (95% CI = 3.49-5.51). Similarly, the crude odds ratio of mental distress among dissatisfied non-farmers in comparison to satisfied non-farmers was 5.01 (95% CI = 4.19-5.98). These statistically significant odds ratios remained even after controlling for age, gender and family structure. The most important cause of mental distress among farmers was related to family finances. Among non-farmers, however, the most important cause of mental distress tended to be human relations in the workplace. Conclusion: Although farmers experienced similar levels of job satisfaction and mental distress in comparison to non-farmers, the most important cause of mental distress differed between farmers and non-farmers. As the underlying risks for this level of job satisfaction, family finances are therefore considered to be a potentially hazardous factor in regard to mental distress for farmers.
Psyche, NOS ; Job Satisfaction ; percent ; Cancer patients and suicide and depression ; Cephalic index

Objective: Due to the spread of new cultivation methods for strawberries, working conditions have changed in recent years. In addition, the average age of strawberry growers has been increasing. As a result, the need to take new measures to prevent physical fatigue in middle-aged strawberry growers has been increasing. Due to a general paucity of epidemiological studies, we investigated the relationship between physical fatigue and farmwork among middle-aged strawberry growers during the harvest season.Materials and Methods: A mail survey was carried out among 621 healthy Japanese strawberry growers (368 men and 253 women) in January 2003.Results: Lower back pain was the most frequent complaint (71% of males and 67% of females), followed by shoulder pain (45% of males and 59% of females), and eye pain (46% of males and 57% of females). After adjusting for such factors as age, working hours, and sleeping hours using a multiple logistic regression analysis, lower back pain demonstrated the strongest association with the application of gibberellins at bloom among males (odds ratio 2.0) and with the harvesting of strawberries among females (odds ratio 1.8). Shoulder pain had the strongest association with the removal of older leaves among males (odds ratio 1.9) and with the harvesting of strawberries among females (odds ratio 2.2). Eye pain had the strongest association with the clipping of needless runners among males (odds ratio 1.6) and with the application of gibberellins at bloom among females (odds ratio 2.4).Conclusion: Although the three main types of physical fatigue -- lower back pain, shoulder pain, and eye pain -- tended to have a similar prevalence, the related farmwork differed between males and females. Our results therefore suggest that it is necessary to take appropriate measures based on gender differences in order to prevent physical fatigue in middle-aged strawberry growers. Consequently, there is now an urgent need to evaluate ergonomic intervention in a controlled trial.
Fatigue <1> ; Relationship by association ; Shoulder Pain ; Seasons ; Pain