Three types of university students with subthreshold depression characterized by distinctive cognitive behavioral skills.

Subthreshold depression impairs young people's quality of life and places them at greater risk of developing major depression. Cognitive behavioral therapy (CBT) is an evidence-based approach for addressing such depressive states. This study identified subtypes of university students with subthreshold depression and revealed discrete profiles of five CBT skills: self-monitoring, cognitive restructuring, behavioral activation, assertive communication, and problem solving. Using data from the Healthy Campus Trial (registration number: UMINCTR-000031307), a hierarchical clustering analysis categorized 1,080 students into three clusters: Reflective Low-skilled, Non-reflective High-skilled, and Non-reflective Low-skilled students. Non-reflective Low-skilled students were significantly more depressed than other students (p < .001). The severity of depression seemed to be related to the combination of self-monitoring skills and other CBT skills. Considering the high prevalence of poor self-monitoring skills in persons with autism, the most severe depression was observed in the significant association between Non-reflective Low-skilled students and autistic traits (p = .008). These findings suggest that subthreshold depression can be categorized into three subtypes based on CBT skill profiles. The assessment of autistic traits is also suggested when we provide CBT interventions for Non-reflective Low-skilled students.

Reliability and validity of the Japanese version of the Valued Living Questionnaire Adapted to Caregiving.

OBJECTIVES: This study developed the Japanese version of the Valued Living Questionnaire Adapted to dementia Caregiving (J-VLQAC) and assessed its reliability and validity. METHODS: A 2-wave longitudinal survey with an interval of two weeks was conducted with Japanese dementia family caregivers (n = 521 at T1; n = 424 at T2). RESULTS: Confirmatory factor analysis demonstrated a poor fit to our data for the original 2-factor model. Exploratory factor analysis resulted in a new 3-factor model (i.e., Own Values, Family Values, and Health Values). Both models showed similar good internal consistency (Cronbach's alpha) and test-retest reliability. Significant correlations between the J-VLQAC and the Valuing Questionnaire (VQ) and measures assessing related constructs (e.g., cognitive fusion) supported good criterion validity and acceptable level of construct validity for both models. Compared to the original 2-factor model, the new 3-factor model showed higher incremental validity, which was assessed through the hierarchical regression analysis examining whether the J-VLQAC predicts depression, anxiety, and life satisfaction over and above the VQ. CONCLUSIONS: The J-VLQAC has good reliability and acceptable validity. CLINICAL IMPLICATIONS: The information gathered from the J-VLQAC can be used to tailor psychological support and help caregivers engage in activities that reflect their personal values.

Prognostic factors and effect modifiers for personalisation of internet-based cognitive behavioural therapy among university students with subthreshold depression: A secondary analysis of a factorial trial.

BACKGROUND: Internet-cognitive behavioural therapy (iCBT) for depression can include multiple components. This study explored depressive symptom improvement prognostic factors (PFs) and effect modifiers (EMs) for five common iCBT components including behavioural activation, cognitive restructuring, problem solving, self-monitoring, and assertion training. METHODS: We used data from a factorial trial of iCBT for subthreshold depression among Japanese university students (N = 1093). The primary outcome was the change in PHQ-9 scores at 8 weeks from baseline. Interactions between each component and various baseline characteristics were estimated using a mixed-effects model for repeated measures. We calculated multiplicity-adjusted p-values at 5 % false discovery rate using the Benjamini-Hochberg procedure. RESULTS: After multiplicity adjustment, the baseline PHQ-9 total score emerged as a PF and exercise habits as an EM for self-monitoring (adjusted p-values <0.05). The higher the PHQ-9 total score at baseline (range: 5-14), the greater the decrease after 8 weeks. For each 5-point increase at baseline, the change from baseline to 8 weeks was bigger by 2.8 points. The more frequent the exercise habits (range: 0-2 points), the less effective the self-monitoring component. The difference in PHQ-9 change scores between presence or absence of self-monitoring was smaller by 0.94 points when the participant exercised one level more frequently. Additionally, the study suggested seven out of 36 PFs and 14 out of 160 EMs examined were candidates for future research. LIMITATIONS: Generalizability is limited to university students with subthreshold depression. CONCLUSIONS: These results provide some helpful information for the future development of individualized iCBT algorithms for depression.

Association between the interval of worksite dental check-ups and dental and medical expenditures: a single-site, 12-year follow-up study in Japan.

OBJECTIVES: The purpose of this study was to identify the effective intervals of worksite dental check-ups to reduce cumulative dental expenditures (CDEs) and cumulative medical expenditures (CMEs), based on 12 years of follow-up dental check-ups. SETTING, DESIGN AND PARTICIPANTS: A longitudinal study was conducted between 2002 and 2014 fiscal years. A total of 2691 full-time employees (2099 males and 592 females) aged 20-59 years in a manufacturing company in Japan were recruited. PRIMARY AND SECONDARY OUTCOME MEASURES: Based on the follow-up of 12-year dental check-ups, the interval of dental check-ups visits was classified into the following categories: 'Once per year' as the regular group, 'At least once per 2 years' as the subregular group and others as the irregular group. CDEs and CMEs per capita were examined by the three groups of dental check-ups interval after adjustment for sex, age, occupation and total CMEs at baseline. For sensitivity analysis, decayed teeth, missing teeth and Community Periodontal Index were added as adjustment factors. RESULTS: Compared with the irregular group, the pooled CDEs (including dental check-ups fee) per capita in the subregular group (OR 0.91, 95% CI 0.85 to 0.98) and regular group (OR 0.87, 95% CI 0.81 to 0.93) were significantly lower overall. The younger adults in the subregular group and younger-aged and middle-aged adults in the regular group had significantly lower CDEs. Sensitivity analysis confirmed these findings. CONCLUSIONS: Our findings suggest that regular and subregular worksite dental check-ups were related to reduction of CDEs. It is important to promote a yearly interval between dental check-ups.

Components of smartphone cognitive-behavioural therapy for subthreshold depression among 1093 university students: a factorial trial.

BACKGROUND: Internet-based cognitive-behavioural therapy (iCBT) is effective for subthreshold depression. However, which skills provided in iCBT packages are more effective than others is unclear. Such knowledge can inform construction of more effective and efficient iCBT programmes. OBJECTIVE: To examine the efficacy of five components of iCBT for subthreshold depression. METHODS: We conducted an factorial trial using a smartphone app, randomly allocating presence or absence of five iCBT skills including self-monitoring, behavioural activation (BA), cognitive restructuring (CR), assertiveness training (AT) and problem-solving. Participants were university students with subthreshold depression. The primary outcome was the change on the Patient Health Questionnaire-9 (PHQ-9) from baseline to week 8. Secondary outcomes included changes in CBT skills. FINDINGS: We randomised a total of 1093 participants. In all groups, participants had a significant PHQ-9 reduction from baseline to week 8. Depression reduction was not significantly different between presence or absence of any component, with corresponding standardised mean differences (negative values indicate specific efficacy in favour of the component) ranging between -0.04 (95% CI -0.16 to 0.08) for BA and 0.06 (95% CI -0.06 to 0.18) for AT. Specific CBT skill improvements were noted for CR and AT but not for the others. CONCLUSIONS: There was significant reduction in depression for all participants regardless of the presence and absence of the examined iCBT components. CLINICAL IMPLICATION: We cannot yet make evidence-based recommendations for specific iCBT components. We suggest that future iCBT optimisation research should scrutinise the amount and structure of components to examine. TRIAL REGISTRATION NUMBER: UMINCTR-000031307.

Development and validation of the Cognitive Behavioural Therapy Skills Scale among college students.

BACKGROUND: There are many different skill components used in cognitive behavioural therapy (CBT). However, there is currently no comprehensive way of measuring these skills in patients. OBJECTIVE: To develop a comprehensive and brief measure of five main CBT skills: self-monitoring, behavioural activation, cognitive restructuring, assertiveness training and problem-solving. METHODS: University students (N=847) who participated in a fully factorial randomised controlled trial of smartphone CBT were assessed with the CBT Skills Scale, the Patient Health Questionnaire-9 (PHQ-9), the Generalised Anxiety Disorder-7 (GAD-7) and the short form of the Japanese Big Five Scale. Structural validity was estimated with exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), and internal consistency evaluated with Cronbach's α coefficients. Construct validity was evaluated with the correlations between each factor of the CBT Skills Scale, the PHQ-9, the GAD-7 and the Big Five Scale. FINDINGS: The EFA supported a five-factor solution based on the original instruments assessing each CBT skill component. The CFA showed sufficient goodness-of-fit indices for the five-factor structure. The Cronbach's α of each factor was 0.75-0.81. Each CBT skills factor was specifically correlated to the PHQ-9, GAD-7, and the Big Five Scale. CONCLUSIONS: The CBT Skills Scale has a stable structural validity and internal consistency with a five-factor solution and appropriate content validity concerning the relationship with depression, anxiety and personality. CLINICAL IMPLICATIONS: The CBT Skills Scale will be potential predictor and effect modifier in studying the optimisation of CBT interventions. TRIAL REGISTRATION: CTR-000031307.

Recent Achievements and Current Interests in Research on the Characterization and Quality Control of Biopharmaceuticals in Japan.

As reported in the previous commentary (Ishii-Watabe et al., J Pharm Sci 2017), the Japanese biopharmaceutical research group is promoting collaborative multilaboratory studies to evaluate and standardize new methodologies for biopharmaceutical characterization and quality control. We have conducted the studies and held 2 annual meetings in 2018 and 2019. At the 2018 meeting, Dr. Rukman DeSilva of the U.S. Food and Drug Administration and Dr. Srivalli Telikepalli of the National Institute of Standards and Technology participated as guest speakers. At the 2019 meeting, we invited Prof. John Carpenter of the University of Colorado, Prof. Gerhard Winter and Prof. Wolfgang Friess of Ludwig Maximilian University of Munich, and Dr. Tim Menzen of Coriolis Pharma Research, as guest commentators. In both meetings, the main research topic was strategies for the characterization and control of protein aggregates/subvisible particles in drug products. Specifically, the use of the light obscuration method for insoluble particulate matter testing with reduced injection volumes, and a comparison of analytical performance between flow imaging and light obscuration were discussed. Other topics addressed included host cell protein analysis, bioassay, and quality control strategies. In this commentary, the recent achievements of the research group, meeting discussions, and future perspectives are summarized.

Interlaboratory comparison about feasibility of insoluble particulate matter test for injections with reduced test volume in light obscuration method.

Insoluble particulate matter test for injections in pharmacopoeia is mandatory for parenteral drug products. In this test using light obscuration, four measurements of at least 5-mL are required. Since therapeutic protein injections of low dosage volumes are getting more popular, reduction of test volumes is desired. In this collaborative study, the impact of lower measurement volume on the accuracy and precision of particle count was evaluated using 2, 5, 10, and 25-µm polystyrene count standards for the validity of test with reduced sample volumes. Good accuracy (3000 particles/mL ±â€¯10%) was obtained at all measurement volumes, and the inter-run variability (RSD) was the same levels between 5 and 1 mL. Although the inter-run variability increased at 0.2 mL, it was below 5%. These results indicated that light obscuration method can be used with 5 mL-0.2 mL, and that it is feasible for monitoring particles ≥2 µm.

Structural equation modeling of the relationship between posttraumatic growth and psychosocial factors in women with breast cancer.

OBJECTIVE: Posttraumatic growth (PTG) is a positive psychological change occurring after struggling with a highly challenging experience. The purposes of this study were to investigate how women's demographic and clinical characteristics as well as psychosocial factors are associated with PTG and to reveal the influence of PTG on depressive symptoms. METHODS: Participants were 157 women with breast cancer (BC) who attended a breast oncology clinic at a university hospital in Japan. The questionnaire included demographic and clinical characteristics, social support, coping strategies, depressive symptoms, and PTG. Structural equation modeling was conducted. RESULTS: Coping was directly related to PTG, and social support and having a religion were partially related to PTG. There was a moderate association between social support and coping. PTG mediated the effect of coping on depressive symptoms. PTG as well as a high level of perceived social support and using positive coping decreased depressive symptoms, whereas using self-restraining coping increased depressive symptoms. CONCLUSION: This study indicated the role of coping strategies and social support in enhancing PTG in Japanese women with BC. Furthermore, perceived social support, a positive approach coping style, and PTG may reduce depressive symptoms. Our results suggest that health care professionals should consider whether patients receive enough support from others, and whether the patients are using the appropriate coping style to adapt to stressors associated with the diagnosis and treatment of BC.

Association between eating speed and metabolic syndrome in a three-year population-based cohort study.

BACKGROUND: Metabolic syndrome has received increased global attention over the past few years. Eating behaviors, particularly eating speed, have long been of interest as factors that contribute to the development of obesity and diabetes. The aim of this study was to assess the relationship between eating speed and incidence of metabolic syndrome among middle-aged and elderly Japanese people. METHODS: A total of 8941 community residents from Soka City in Saitama Prefecture, aged from 40 to 75 years and without a diagnosis of metabolic syndrome, participated in the baseline survey in 2008 and were followed until 2011. Anthropometric measurements and lifestyle factors were measured at baseline and follow-up. The association between eating speed and incidence of metabolic syndrome was evaluated using Cox proportional hazards models adjusted for potential confounding variables. RESULTS: During the 3-year follow-up, 647 people were diagnosed with metabolic syndrome (25.0 cases/1000 person-years). The incidence rates of metabolic syndrome among non-fast-eating and fast-eating participants were 2.3% and 3.1%, respectively. The multivariate-adjusted hazard ratio for incidence of metabolic syndrome in the fast-eating group compared to the not-fast-eating group was 1.30 (95% confidence interval [CI], 1.05-1.60) after adjustment for the potential confounding factors. Eating speed was significantly correlated with waist circumference and high-density lipoprotein cholesterol (HDL-C) components of metabolic risk factors. Hazard ratios in the fast-eating group compared with the reference group were 1.35 (95% CI, 1.10-1.66) for waist circumference and 1.37 (95% CI, 1.12-1.67) for HDL-C. CONCLUSIONS: Eating speed was associated with the incidence of metabolic syndrome. Eating slowly is therefore suggested to be an important lifestyle factor for preventing metabolic syndrome among the Japanese.

[Association between periodontal pockets and health-related behaviors of workers].

OBJECTIVE: Periodontal disease is a chronic disease caused by bacterial infection, and frequently develops in adulthood. As the disease is closely related to lifestyle, it is important to clarify its relationship with health-related behaviors to provide effective health instructions targeting its prevention. In this study, we focused on periodontal pockets with advanced periodontal disease to clarify the health-related behaviors associated with the presence or absence of periodontal pockets. METHODS: The subjects were 3,142 employees (male: N=2,429, female: N=713; 42.4 ± 10.5 years, Range 20-59 years) of one company, which had provided all employees with an oral health program in 2002. Participants with a Community Periodontal Index code of ≤2 and ≥3 were classified as those without and with periodontal pockets, respectively. To clarify the health-related behaviors associated with the presence or absence of periodontal pockets, we conducted multivariate logistic regression analysis, with presence/absence of periodontal pockets as the dependent variable, and items of health-related behavior investigated in 2002 as independent variables, and calculated the odds ratios (OR) and 95% confidence intervals (95%CI) adjusted for sex, age group and occupation. RESULTS: The factor most strongly correlated with the presence of periodontal pockets was non-use of dental floss (OR=1.95 (95%CI: 1.57-2.41)), followed by smoking (OR=1.71 (95%CI: 1.44-2.03)), and tooth-brushing habits (≤once a day: OR=1.33 (95%CI: 1.10-1.61)). CONCLUSIONS: Our results suggest that, to promote oral health program at the worksite, it is important to provide health education and instructions to encourage the use of dental floss, a daily tooth-brushing habit, and smoking cessation.

Concise synthesis of the C15-C38 fragment of okadaic acid: application of the Suzuki-Miyaura reaction to spiroacetal synthesis.

A concise synthetic entry to the C15-C38 fragment of okadaic acid by exploiting a Suzuki-Miyaura reaction for the rapid assembly of the spiroacetal substructures has been developed. The present synthesis was completed in 19 linear steps from a commercially available material, showcasing the efficiency of our synthetic strategy.

Cardiorespiratory fitness, body mass index, and cancer mortality: a cohort study of Japanese men.

BACKGROUND: The aim of this study is to investigate the independent and joint effects of cardiorespiratory fitness (CRF) and body mass index (BMI) on cancer mortality in a low body mass index population. METHODS: We evaluated CRF and BMI in relation to cancer mortality in 8760 Japanese men. The median BMI was 22.6 kg/m2 (IQR: 21.0-24.3). The mean follow-up period was more than 20 years. Hazard ratios and 95% CI were obtained using a Cox proportional hazards model while adjusting for several confounding factors. RESULTS: Using the 2nd tertile of BMI (21.6-23.6 kg/m2) as reference, hazard ratios and 95% CI for the lowest tertile of BMI (18.5-21.5) were 1.26 (0.87-1.81), and 0.92 (0.64-1.34) for the highest tertile (23.7-37.4). Using the lowest tertile of CRF as reference, hazard ratios and 95% CIs for 2nd and highest tertiles of CRF were 0.78 (0.55-1.10) and 0.59 (0.40-0.88). We further calculated hazard ratios according to groups of men cross-tabulated by tertiles of CRF and BMI. Among men in the second tertile of BMI, those belonging to the lowest CRF tertile had a 53% lower risk of cancer mortality compared to those in the lowest CRF tertile (hazard ratio: 0.47, 95% CI: 0.23-0.97). Among those in the highest BMI tertile, the corresponding hazard ratio was 0.54 (0.25-1.17). CONCLUSION: These results suggest that high CRF is associated with lower cancer mortality in a Japanese population of men with low average BMI.

The dose-response relationship between body mass index and the risk of incident stage ≥3 chronic kidney disease in a general japanese population: the Ibaraki prefectural health study (IPHS).

PURPOSE: To examine the relationship between body mass index (BMI) and the risk of stage ≥3 chronic kidney disease (CKD) in a general Japanese population. METHODS: A total of 105 611 participants aged 40-79 years who completed health checkups in Ibaraki Prefecture, Japan, and were free of CKD in 1993 were followed-up through 2006. Stage ≥3 CKD was defined by an estimated glomerular filtration rate <60 mL/min/1.73 m(2) reported during at least 2 successive annual surveys or as treatment for kidney disease. Hazard ratios (HRs) for the development of stage ≥3 CKD relative to the BMI categories were calculated using the Cox proportional hazards regression model, which was adjusted for possible confounders and mediators. RESULTS: During a mean follow-up of 5 years, 19 384 participants (18.4%) developed stage ≥3 CKD. Compared to a BMI of 21.0-22.9 kg/m(2), elevated multivariable-adjusted HRs were observed among men with a BMI ≥23.0 kg/m(2) and women with a BMI ≥27.0 kg/m(2). Significant dose-response relationships between BMI and the incidence of stage ≥3 CKD were observed in both sexes (P for trend <0.001). CONCLUSIONS: Obesity was associated with the risk of developing stage ≥3 CKD among men and women.

Burn and cut injuries related to job stress among kitchen workers in Japan.

To clarify the correlation between kitchen work-related burns and cuts and job stress, a self-administered questionnaire survey was conducted involving 991 kitchen workers among 126 kitchen facilities. The demographics, condition of burns and cuts, job stress with the Brief Job Stress Questionnaire (BJSQ), health condition, and work-related and environmental factors were surveyed. Multiple logistic regression models and trend tests were used according to quartiles (Q1, Q2, Q3, and Q4) of each sub-scale BJSQ. After adjustment for potential confounding variables, burns/cuts were associated with a higher score category (Q4) of job demands (OR: 2.56, 95% CI: 1.10-6.02/OR: 2.72, 95% CI: 1.30-5.69), psychological stress (OR: 4.49, 95% CI: 2.05-9.81/OR: 3.52, 95% CI: 1.84-6.72), and physical stress (OR: 2.41, 95% CI: 1.20-4.98/OR 2.16, 95% CI: 1.16-4.01). The ORs of the burn/cut injures increased from Q1 to Q4 with job demands (p for trend = 0.045/0.003), psychological stress (p for trend<0.001/0.001), and physical stress (p for trend = 0.006/0.005), respectively. These findings suggest that kitchen work-related burns and cuts are more likely to be correlated with job stress, and the higher the job stress score, the higher the frequency of burns and cuts among kitchen workers.

The impact of breast cancer on employment among Japanese women.

OBJECTIVES: Breast cancer (BC) is a cancer that affects working age women in Japan. The aim of this study was to examine the impact that BC has on the work-related life of Japanese women and identify factors that correlate with job resignation. METHODS: A cross-sectional Internet survey of cancer survivors in Japan was conducted from December 2011 to February 2012. The questionnaire included questions regarding demographic characteristics, impact of cancer diagnosis and treatment on job resignation and consultation behavior of respondents regarding work-related issues. This study reports results obtained from 105 respondents with BC. RESULTS: The mean age of respondents at diagnosis was 42.5 ± 6.4 years, and the median time since diagnosis was 40 months. Thirty-one respondents (29.5%) lost their jobs, and 12 could not find another job after BC diagnosis. Nearly half of the respondents (47.6%) reported a decrease in personal income after diagnosis. Multiple logistic regression analysis revealed that contract or part time workers were significantly more likely to lose their jobs compared with regular, full time workers (odds ratio, 2.52; 95% confidence interval, 1.39 to 4.55; p<0.001). Seventy-nine respondents (75.2%) consulted someone regarding work-related issues. The most frequently consulted person was the boss at the workplace. CONCLUSIONS: Our findings suggest that women with BC experience various job-related problems. In order to create a supportive work environment for BC survivors, focus should be placed on facilitating communication and coordination between BC survivors, healthcare providers and coworkers.

Total synthesis and structure revision of didemnaketal B.

Didemnaketal B, a structurally complex spiroacetal that exhibits potent HIV-1 protease inhibitory activity, was originally discovered by Faulkner and his colleagues from the ascidian Didemnum sp. collected at Palau. Its absolute configuration was proposed on the basis of degradation/derivatization experiments of the authentic sample. However, our total synthesis of the proposed structure of didemnaketal B questioned the stereochemical assignment made by Faulkner et al. Here we describe in detail our first total synthesis of the proposed structure 2 of didemnaketal B, which features 1) a convergent synthesis of the C7-C21 spiroacetal domain by means of a strategy exploiting Suzuki-Miyaura coupling, 2) an Evans syn-aldol reaction and a vinylogous Mukaiyama aldol reaction for the assembly of the C1-C7 acyclic domain, and 3) a Nozaki-Hiyama-Kishi reaction for the construction of the C21-C28 side chain domain. The NMR spectroscopic discrepancies observed between synthetic 2 and the authentic sample as well as careful inspection of the Faulkner's stereochemical assignment led us to postulate that the absolute configuration of the C10-C20 domain of 2 has been erroneously assigned. Accordingly, the total synthesis of the revised structure 65 was achieved to show that the NMR spectroscopic properties of synthetic 65 were in good agreement with those of the authentic sample. Furthermore, application of the phenylglycine methyl ester (PGME) method to the C7-C21 spiroacetal domain enabled us to establish the absolute configuration of didemnaketal B.

Association of alcohol consumption with incident hypertension among middle-aged and older Japanese population: the Ibarakai Prefectural Health Study (IPHS).

The objective of this study was to examine the effect of age on the relationship between alcohol consumption and incident hypertension in a general Japanese population. A cohort of Japanese men (n=37 310) and women (n=78 426) aged 40 to 79 years who underwent community-based health checkups from 1993 to 2004 and were free of hypertension were followed up with annual examinations, including the measurement of blood pressure, until the end of 2010. Incident hypertension was defined as systolic blood pressure of ≥140 mm Hg, diastolic blood pressure of ≥90 mm Hg, or the initiation of treatment for hypertension. Hazard ratios for incident hypertension according to alcohol consumption were estimated using a Cox proportional hazards model adjusted for possible confounding variables. A total of 45 428 participants (39.3%) developed hypertension (16 155 men and 29 273 women) for a mean follow-up time of 3.9 (1-18) years. Significant associations between alcohol consumption and incident hypertension were found in both sexes and age groups (P for trend was <0.001 for men aged 40-59 years and aged 60-79 years; 0.004 for women aged 40-59 years and 0.026 for women aged 60-79 years). No significant interaction with age on the association of alcohol consumption with incident hypertension was found in either sex (P for interaction, >0.05). Our results suggest that alcohol consumption is a similar risk factor for incident hypertension in both the middle-aged and the older populations.

Non-work-related personal events contribute to depressive symptoms in Japanese discretionary workers.

In Japan, the number of workers with depressive symptoms has increased recently, and long working hours are considered one of the main contributing factors. Currently, the number of workers engaging in discretionary work is small but is expected to increase, as a diverse method of employment is believed to contribute to workers' well-being. However, the factors related to discretionary workers' depressive symptoms are unclear. This study aimed to identify the factors associated with depressive symptoms in discretionary workers. The subjects were 240 male discretionary workers in a Japanese insurance company. A cross-sectional study was performed using a questionnaire that includes demographic characteristics, living and working conditions, work-related and non-work-related stressful events, and the Center for Epidemiologic Studies Depression Scale (CES-D). Depressive symptoms were assessed as more than 16 points on the CES-D. Multiple logistic regression models were employed to estimate odd ratios (OR) with 95% confidence intervals (95% CI) of depressive symptoms in relation to possible factors. Thirty-six subjects (15.5%) showed depressive symptoms. The depressive symptoms were significantly related to age (p = 0.04), presence of child(ren) (p = 0.02), and length of employment (p = 0.01), but unrelated to working hours. Subjects who reported "financial matters" (OR = 4.50, 95% CI = 1.89-10.72) and "own event" such as divorce or illness (OR = 2.93, 95% CI = 1.13-7.61) were more likely to show depressive symptoms. In conclusion, mental health measures for discretionary workers should focus on addressing financial difficulties and consultations and assistance in personal health and family issues.