A study of the effect of half-day climatotherapy on changes in salivary cortisol levels.

In our previous study setting, climatotherapy programme consisted of six sessions - four in the mid-mountain area and two in a flat park. For all sessions, the subjects underwent climatotherapy in the morning under slightly cool conditions. During each session, the subjects' blood pressure, pulse rate, skin temperature, blood lactate, salivary cortisol and mood profile were recorded, and meteorological data were collected at the sites. We hypothesised that exercise habits, changes in mood profile and effective temperatures during the session, and physical exertion during the climatic terrain cure would affect salivary cortisol levels. Subjects were 30 (spring) and 29 (autumn). Multiple linear regression analyses were performed to examine the determinants of the change in salivary cortisol levels. In the mountain setting, salivary cortisol was elevated, even though the sessions took place in the descending phase of the circadian salivary cortisol variation; however, the post-session cortisol increase was not significant. Increased post-session salivary cortisol was significantly associated with female gender, older age, higher BMI, lower body fat, less daily physical activity, increased blood lactate, increased 'Tension-Anxiety' and 'Depression-Dejection' moods, and decreased 'Anger-Hostility' mood. The increase in cortisol may have been due to older age, a predominance of females, and the increased blood lactate due to the mountainous terrain. In the flat park, the significant decrease in postsession salivary cortisol was related to the descending circadian phase of circadian cortisol variation and the low physical demands of the sessions.

Asian Intensive Reader of Pneumoconiosis program: examination for certification during 2008-2020.

This study examined physicians' participation and performance in the examinations administered by the Asian Intensive Reader of Pneumoconiosis (AIR Pneumo) program from 2008 to 2020 and compared radiograph readings of physicians who passed with those who failed the examinations. Demography of the participants, participation trends, pass/fail rates, and proficiency scores were summarized; differences in reading the radiographs for pneumoconiosis of physicians who passed the examinations and those who failed were evaluated. By December 2020, 555 physicians from 20 countries had taken certification examinations; the number of participants increased in recent years. Reported background specialty training and work experience varied widely. Passing rate and mean proficiency score for participants who passed were 83.4% and 77.6 ± 9.4 in certification, and 76.8% and 88.1 ± 4.5 in recertification examinations. Compared with physicians who passed the examinations, physicians who failed tended to classify test radiographs as positive for pneumoconiosis and read a higher profusion; they likely missed large opacities and pleural plaques and had a lower accuracy in recognizing the shape of small opacities. Findings suggest that physicians who failed the examination tend to over-diagnose radiographs as positive for pneumoconiosis with higher profusion and have difficulty in correctly identifying small opacity shape.

Benefits of an accelerated climatotherapy programme for busy people: comparisons according to area and season.

An accelerated climatotherapy programme was evaluated for use with busy people in mid-mountain and flat lowland areas. A total of 43 urban residents participated in this climatotherapy programme. Participants' blood pressure, pulse rate, peripheral skin temperature and levels of salivary amylase, salivary cortisol and blood lactate were measured, and they completed the Profile of Mood Status questionnaire. In the mid-mountain area, which had a cooler environment and long uphill paths, participants' percentage of maximum pulse rate (70.01%) to estimated maximum heart rate was higher than that (59.67%) of participants in the flat lowland area, suggesting that the mid-mountain area was suitable for endurance training. At both sites, the decrease in peripheral skin temperature during the climatic terrain cure suggested that our programme was properly implemented with a cool body surface in accordance with our purpose. Negative moods improved quickly, suggesting that the forest environment and the fresh-air rest cure may have relaxed participants. In late spring and early autumn, the mood of approximately 25% of participants improved to an Iceberg profile, which is associated with positive mental states and athletic peak performance, after climatotherapy. On the other hand, the weather in early spring and late autumn was more likely to facilitate maintenance of a cool body surface during the climatic terrain cure. With the support of individualized feedback provided after the climatotherapy sessions, three participants developed regular exercise habits, serving as a good example of the effectiveness of our climatotherapy programme to elicit behavioural change.

Inter-observer agreement and accuracy in classifying radiographs for pneumoconiosis among Asian physicians taking AIR Pneumo certification examination.

This study examined inter-observer agreement and diagnostic accuracy in classifying radiographs for pneumoconiosis among Asian physicians taking the AIR Pneumo examination. We compared agreement and diagnostic accuracy for parenchymal and pleural lesions across residing countries, specialty training, and work experience using data on 93 physicians. Physicians demonstrated fair to good agreement with kappa values 0.30 (95% CI: 0.20-0.40), 0.29 (95% CI: 0.23-0.36), 0.59 (95% CI: 0.52-0.67), and 0.65 (95% CI: 0.55-0.74) in classifying pleural plaques, small opacity shapes, small opacity profusion, and large opacities, respectively. Kappa values among Asian countries ranging from 0.25 to 0.55 (pleural plaques), 0.47 to 0.73 (small opacity profusion), and 0.55 to 0.69 (large opacity size). The median Youden's J index (interquartile range) for classifying pleural plaque, small opacity, and large opacity was 61.1 (25.5), 76.8 (29.3), and 88.9 (23.3), respectively. Radiologists and recent graduates showed superior performance than other groups regarding agreement and accuracy in classifying all types of lesions. In conclusion, Asian physicians taking the AIR Pneumo examination were better at classifying parenchymal lesions than pleural plaques using the ILO classification. The degree of agreement and accuracy was different among countries and was associated with background specialty training.

Climatotherapy in Japan: a pilot study.

Twenty-nine urban inhabitants participated in a half-day climatotherapy programme at the moderate mountain area and lowland area in the northwest part of the main island of Japan. The current study was aimed to investigate physically and mentally the objective and subjective influence of our short programme, which was a prospective pilot study of single intervention. Blood pressure was significantly descended during terrain cure at the uphill mountain path and returned after fresh-air rest cure, while there was no significant change throughout the programme at lowland flat path. Heart rate was significantly ascended and descended at both area, and more clearly changed at the mountain path. Profile of Mood Status brief form Japanese version administered before and after our half-day programme. Age adjusted T score of negative subscales, 'tension-anxiety', 'depression', 'anger-hostility', 'fatigue' and 'confusion' were significantly lower after climatotherapy at both sites. Whereas, there was no significant change concerning 'vigour' score. This short-version climatotherapy programme has been designed for people without enough time for long stay at health resort. It turned out our half-day climatotherapy programme contribute to mood status improvement. In addition, repeated practice of our short-version programme including endurance exercise with cool body shell using uphill path can be expected that blood pressure will go toward the normal range and heart rate will decrease both in usual time and during exercise. Therefore, health benefits can be expected of this climatotherapy programme.

What sort of medical care is ideal? Differences in thoughts on medical care among residents of urban and rural/remote Japanese communities.

Studies of aspirational ideals of medical care generally focus on patients rather than on ordinary people receiving or not receiving medications at the time of interview. The literature has not accurately conveyed the distinct ideals in individual communities or undertaken inter-regional comparisons. This current qualitative study focused on ideal medical care as perceived by residents of distinct Japanese communities in their everyday lives. Between December 2011 and November 2012, one-on-one and group-based semi-structured interviews were conducted with 105 individuals, each of whom had continuously lived for 20 years or more in one of the four types of communities classified as either 'metropolitan area', 'provincial city', 'mountain/fishing village' or 'remote island' in Japan. Interviews were transcribed from digital audio recordings and then analysed (in tandem with non-verbal data including participants' appearances, attitudes and interview atmospheres) using constructivist grounded theory, in which we could get the voice and mind of the participant concerning ideal medical care. The common themes observed among the four community types included 'peace of mind because of the availability of medical care' and 'trust in medical professionals'. Themes that were characteristic of urban communities were the tendency to focus on the content of medical care, including 'high-level medical care', 'elimination of unnecessary medical care' and 'faster, cheaper medical care', whereas those that were characteristic of rural communities were the tendency to focus on lifestyle-oriented medical care such as 'support for local lifestyles', 'locally appropriate standards of medical care' and 'being free from dependence on medical care'. The sense of ideal medical care in urban communities tended to centre around the satisfaction with the content of medical care, whereas that in rural communities tended to centre around the ability to lead a secure life. By considering medical care from the geographical point of view, we found out the significant relationship between communities and perceptions of medical care ideals.

Medical care ideals among urban and rural residents in Thailand: a qualitative study.

BACKGROUND: Health care is generally considered to be more highly valued in urban areas than in rural areas. However, studies have reported that there is no difference in the health care values of urban and rural areas in the Kingdom of Thailand, with some studies even indicating that these values are stronger in rural areas. We, therefore, conducted interviews and implemented a qualitative investigation and analysis aimed at elucidating ideals relating to the medical environment among the Kingdom's urban and rural citizens. METHODS: The study targeted Thai citizens residing in urban and rural areas. The city of Khon Kaen, located in Khon Kaen Province in northeastern Thailand, was selected as the urban area for the study. We selected Donyang village, located in the same province, as the rural study area. In July 2014, we conducted semi-structured group interviews, applying the Constructivist Grounded Theory (CGT) analytical approach. RESULTS: We interviewed ten people in Khon Kaen (the urban area) and seven people from Donyang village (the rural area). Five major and distinctive themes emerged from the interviews. These were: locally appropriate standards of medical care, support for local lifestyles, satisfaction with local medical personnel, healthy lifestyles that do not rely on medical services, and desire for regional autonomy/desire to serve the region in terms of medical care. All of these themes were evident in both study areas. Thus, rather than relying on advanced medical services, both urban and rural Thai citizens expressed the desire to continue living within communities (considered as "families"), contributing to them, and tending to all of their health care needs within their communities. CONCLUSIONS: This study revealed five common themes relating to forms of medical care regarded as ideal among urban and rural citizens of Thailand. Its findings could potentially have important implications for areas characterized by urban-rural inequities relating to the accessibility and utilization of medical services.

Work-related allergy in medical doctors: atopy, exposure to domestic animals, eczema induced by common chemicals and membership of the surgical profession as potential risk factors.

PURPOSE: To investigate the risk factors associated with work-related allergy-like symptoms in medical doctors. METHODS: Self-administered questionnaire survey and CAP test were conducted among medical school students in the 4th grade of their 6-year medical course in 1993-1996 and 1999-2001. Follow-up questionnaires were sent in 2004 to the graduates. These questionnaires enquired into personal and family history of allergic diseases, lifestyle, history of allergy-like symptoms including work-relatedness and occupational history as medical doctors. Relationships between allergy-like symptoms and relevant factors were evaluated by multivariate logistic regression analysis. RESULTS: Of 261 respondents at the follow-up survey, 139 (53.3%) and 54 (20.7%) had a history of any allergy-like symptoms and any work-related allergy-like symptoms, respectively. Female gender and family history of allergic diseases were significantly associated with any allergy-like symptoms. Personal history of allergic disease, exposure to domestic animals, eczema caused by rubber gloves, metallic accessories, or cosmetics during schooling days, and membership of the surgical profession were significant risk factors for work-related allergy-like symptoms. On the contrary, to work-related allergy-like symptoms, gender, age, and smoking status were not significantly related, and consumption of prepared foods was inversely related. CONCLUSIONS: Personal history of atopy and eczema induced by common goods and the history of keeping domestic animals may be predictors of work-related allergy-like symptoms in doctors. After graduation from medical school, physicians start with exposure to various allergens and irritants at work, which relate to work-related allergy-like symptoms, especially for surgeons.

Sib-size, birth order and risk of overweight in junior high school students in Japan: results of the Toyama Birth Cohort Study.

OBJECTIVE: To investigate whether there is a relationship between sib-size, birth order and the risk of overweight in junior high school students. METHOD: Sib-size, birth order, height and weight of subjects and their parents, and other lifestyle factors were obtained through a questionnaire survey conducted between June and July 2002 from 7,959 junior high students in Toyama prefecture, Japan. Logistic regression analysis was performed to examine the associations. Boys and girls were analyzed separately. RESULTS: Boys from three-child families showed a significantly lower risk of overweight than only boys (odds ratio (OR)=0.66, p=0.010), and girls from larger families have a significantly lower risk than only girls (p for trend=0.001). Compared to middle-born girls, only girls have a significantly higher risk of overweight (OR=2.22, p<0.001). The risk of overweight in boys was significantly lower with increasing number of elder sibling or sister. However, increasing of any one sibling almost had the same risk reduction effect on the risk of overweight in girls (OR ranged from 0.74 to 0.76, p<=0.001). CONCLUSION: Children without siblings are the ones most at risk for overweight, especially in girls. Birth order and sib-size are possible risk factors for the development of overweight and obesity.

Morning-evening preference: sleep pattern spectrum and lifestyle habits among Japanese junior high school pupils.

We surveyed the sleep-wake patterns and lifestyle habits in a sample of Japanese first to third year junior high school children (n=638, age 12 to 15 yrs), of whom 29.3% were evening type, 64.1% intermediate type, and 6.6% morning type in preference. The morningness-eveningness (M-E) score was lower (more evening typed), 16.1 vs. 15.4 in first compared to third year students. There were significant gender differences, with girls showing a greater evening preference. Evening preference was associated with longer sleep latency, shortened sleep duration during schooldays and weekends, bad morning feeling, and episodes of daytime sleepiness. In contrast, morning preference was associated with higher sleep drive and better sleep-wake parameters and lifestyle habits. Our results suggest the morning preference should be promoted among junior high school children to increase the likelihood of more regular sleep-wake patterns and lifestyle habits.

Spa resort use and health-related quality of life, sleep, sickness absence and hospital admission: the Japanese civil servants study.

OBJECTIVE: To examine whether spa resort use is associated with the health of Japanese employees. DESIGN: Cross-sectional survey. PARTICIPANTS: 3341 employees (2280 males and 1061 females) aged 20-65 in local government in Japan. MAIN OUTCOME MEASURES: The physical and mental component summary scores (PCS and MCS) of the Short Form 36 (SF-36), sleep quality as measured by the Pittsburgh Sleep Quality Index (PSQI), sickness leave (> or =7 days in the previous year), and hospital admission in the previous year. RESULT: The PCS and MCS increased with the frequency of spa resort use in men and women. Less frequent use was associated with poor sleep quality for men and women and sickness leave for men. There was no significant relationship between use frequency and hospital admission. CONCLUSIONS: Spa resort use may have beneficial effects on physical and particularly mental health. Longitudinal research is necessary to clarify the causality.

Body image, body satisfaction and dieting behavior in Japanese preadolescents: The Toyama birth cohort study.

OBJECTIVES: To examine the relationships between body image, body satisfaction and dieting behavior in the context of pubertal changes in Japanese preadolescents. METHODS: A cross-sectional study of dieting behavior among 5,244 preadolescents (2,452 boys and 2,792 girls aged 12-13) born in Toyama prefecture. RESULTS: The percentages of those who perceived themselves fat, wanted to be thinner, and had tried dieting, which increased with body mass index (BMI), were significantly higher in girls than in boys (34.2% vs. 20.0%, 58.0% vs. 26.0%, and 17.3% vs. 5.7%, respectively). Independent of sex and BMI, those who wanted to be thinner and those who had tried dieting were more frequently observed in those who perceived themselves fat, and those who had tried dieting were more frequently observed in those who wanted to be thinner. Pubertal changes were significantly associated with dieting behavior, but their relationships to body image and body satisfaction differed between sexes; for boys, those who perceived themselves fat were more frequently observed in those without pubertal changes; whereas for girls, those who wanted to be thinner were more frequently observed in those with pubertal changes. CONCLUSIONS: Dieting behavior of Japanese preadolescents was associated with whether they perceived themselves fat and wanted to be thinner, sometimes independent of whether they were actually overweight. Pubertal changes might induce a positive perspective of growing fat among boys and a desire to be thinner among girls, with the consequence that dieting behavior would be reinforced in those with pubertal changes.

Body image and body satisfaction play important roles in the path to dieting behavior in Japanese preadolescents: The Toyama birth cohort study.

OBJECTIVES: To analyze the path to dieting behavior in Japanese preadolescents. METHODS: A cross-sectional study of dieting behavior among 5,244 preadolescents (2,452 boys and 2,792 girls aged 12-13) born in Toyama prefecture. RESULTS: While increasing with body mass index (BMI), the percentage of those who had tried dieting was higher in those who perceived themselves fat than in those who perceived themselves thin or average. Of those who wanted to be thinner, 16.1% of boys and 26.8% of girls had tried dieting. Path analysis in nonobese subjects (2,116 boys and 2,334 girls) showed that (1) body image was primarily based on BMI, (2) body image led to body dissatisfaction, and (3) body dissatisfaction led to dieting behavior. Pubertal changes had a significant effect on body image (path coefficient <0)for boys and body satisfaction (path coefficient >0) for girls, in addition to that on BMI. Maternal BMI had a significant effect on BMI but not on body image, body satisfaction, or dieting behavior. CONCLUSIONS: Body image and body satisfaction play important roles in the path to dieting behavior in Japanese preadolescents. Pubertal changes may reinforce dieting behavior, but the mechanism may differ by sex.

Differences in mortality rates due to major specific causes between Japanese male occupational groups over a recent 30-year period.

It is assumed that differences in the mortality rates of occupational groups are explained by work-related factors, socioeconomic status, and health practices, etc. The present study focuses on the common factors contributing to differences in the mortality rates from all and major specific causes among Japanese male occupational groups. With respect to mortality rates, the following conditions were adopted as major specific causes of death: cerebrovascular disease (CVD), ischemic heart disease (IHD), stomach cancer (Stomach CA), lung cancer (Lung CA) and suicide. Occupations were classified into eight groups. Age-adjusted mortality rates due to each specific cause of death were calculated, using the age-specific population in 1985 as a standard, for every five years of census from 1965 until 1995. The number of significant correlation coefficients and their magnitude between mortality rates due to major specific causes, among the eight occupational groups, increased with advancing census year. Namely, the order of mortality rates for the major causes in Japanese male occupational groups became more similar over the recent 30 yr period. According to the principal component analysis of mortality rates due to major specific causes, the first main factor contributed 57.9% of the commonality in 1965, 76.5% in 1980, and 86.0% in 1995, respectively.