Objectives: ：We investigated relationship between sleep time and depression in the aged 65 years or older. Methods: ：This study was based on the data from seventh Korean National Health and Nutrition Examination Survey (KNHANES). 3,285 people aged 65 years or older were selected as the subjects of this research. The demographic characteristics, sleep time and Patient Health Questinnaire-9 (PHQ-9) were administered for each subjects. Depression was defined as above 10 points of PHQ-9. Results: ：All the demographic variables such as age, sex, education, household income, marital status, drinking and smoking except Body Mass Index (BMI) were correlated with the depression. When we corrected the variables, inadequate sleep time groups (less than 6 hours or more than 9 hours) tended to be depressed. Conclusions ：The study results showed the significant correlation between sleep time and depression in the aged 65 years or older. Adequate sleep time is important to prevent the depression of the aged.

Objectives: ：The aim of this study was to determine how the efficacy and compliance of positive airway pressure (PAP) varies depending on the depressive symptom with obstructive sleep apnea (OSA). Methods: ：We collected data about baseline Apnea-Hyponea Index (AHI), sleep and mood state and demographic information from 125 obstructive sleep apnea patients prior to the start of positive airway pressure treatment. The Apnea-Hyponea Index and daytime sleepiness were examined as indicators of efficacy of positive airway pressure and daily average usage time and the utilization rate (%) for more than 4 hours were calculated as indicators of compliance of positive airway pressure at the time of 1, 3 or 9 months after the start of positive airway pressure. Repeated-measures ANOVA and linear mixed model (LMM) with adjusting age, body mass index and baseline Insomnia severity index were used for revealing any significant differences between groups over time passed. Results: ：This difference was confirmed at 9 months after starting positive airway pressure, between the two groups and the usage rate for more than 4 hours in depressive group was lower than that in non-depression group (56.2% vs. 67.5%). Conclusions ：We demonstrated that there would be a difference in the compliance of positive airway pressure among patients with obstructive sleep apnea according to depressive state. Therefore, we suggest evaluating depressive symptoms in patients with obstructive sleep apnea before starting positive airway pressure, to increase the compliance of the positive airway pressure, which is essential to maintain the efficacy of the positive airway pressure.

Objectives: The purpose of this study was to investigate the association between body mass index (BMI) and body shape perception and depression. Methods: This study was based on data from 2016, 2018, and 2020 Korean National Health and Nutrition Examination Survey (KNHANES). The subjects were 7,302 adult female aged 19 to 65. We performed chi-square test with the RaoScott correction and Logistic regression analyses to examine the association among BMI, body shape perception, and depression. Results: All demographic variables such as age, household income, education, marital status, medical service satisfaction, body shape perception, medical conditions except drinking problem, smoking and physical activity were correlated with depression. The rate of depression decreased from underweight to normal weight and overweight, and increased from obesity to severe obesity (p<0.001). And people who perceived themselves thin or overweight had more depression than normal (p<0.001). Conclusions The results of this study suggest that appropriate body mass index and normal body shape perception have a positive effect on mental health.

BACKGROUND: Lesch types 2 (L2, anxiety model) and 3 (L3, depressive model) of alcoholism exhibit different responses to anti-craving agents, and most treatment guidelines provide differential treatment strategies for bipolar depression (DEP) and unipolar DEP. We compare the psychological characteristics of L2 and L3 alcoholism and between the unipolar and bipolar subgroups.METHODS: We reviewed medical records of patients who were diagnosed with alcohol use disorder using the DSM-5 diagnostic criteria and classified as L2 and L3 using Lesch Alcohol typology software. All patients completed self-report scales (Alcohol Use Disorders Identification Test [AUDIT], Beck Anxiety Inventory [BAI], Beck Depression Inventory-II [BDI-II], and Korean Symptom Checklist-95 [KSCL95]). The data were analyzed using descriptive statistics, the Wilcoxon Rank-Sum test, and ANOVA.RESULTS: Of the 43 patients, 23 were assigned L2, and 20 were assigned L3. The scores for the KSCL95 subscales fell generally in the increasing order of the L2-unipolar (L2U, n=10), L2-bipolar (L2B, n=13), L3-unipolar (L3U, n=11), and L3-bipolar (L3B, n=9) types. The L3B scores were greater than the L3U scores for most KSCL95 subscales, by contrast with the DEP and BAI scores.CONCLUSION: We found psychological differences between L2 and L3 and identified the unique psychological characteristics for each subgroup by polarity. The psychological characteristics of these subgroups of alcohol use disorder may help improve the treatment success rates through individualized treatment strategies.
Alcoholism ; Anxiety ; Bipolar Disorder ; Depression ; Depressive Disorder ; Humans ; Medical Records ; Weights and Measures

Objectives: ：Sexual dysfunction is common in both untreated and treated patients with schizophrenia and known as affecting the quality of life and drug compliance. The primary objective of this study is to estimate the prevalence of sexual dysfunction in Korean patients with schizophrenia treated with antipsychotic medications compared with healthy controls. Methods: ：Subjects were 75 patients who were recruited from outpatients with a diagnosis of schizophrenia or schizoaffective disorder according to DSM-IV-TR criteria, who had been stabilized on antipsychotic medications for more than three consecutive months. Control group consisted of 76 volunteers without history of any psychiatric disorder were excluded. We assessed for sexual dysfunction by the ASEX. Results: ：The prevalence of sexual dysfunction in the patient group was 57.33%, while that of the control group was 23.37%. Female gender and the use of antidepressants were best predictors of sexual dysfunction in patient group. Sexual difference at sexual drive observed in the control group diminished in the patient group. Conclusion ：The present study demonstrated a higher prevalence of sexual dysfunction in patient group than control. Clinicians should consider the differential sexual dysfunction effects of antipsychotics when prescribing medications.

Objectives: ：Sexual dysfunction is common in both untreated and treated patients with schizophrenia and known as affecting the quality of life and drug compliance. The primary objective of this study is to estimate the prevalence of sexual dysfunction in Korean patients with schizophrenia treated with antipsychotic medications compared with healthy controls. Methods: ：Subjects were 75 patients who were recruited from outpatients with a diagnosis of schizophrenia or schizoaffective disorder according to DSM-IV-TR criteria, who had been stabilized on antipsychotic medications for more than three consecutive months. Control group consisted of 76 volunteers without history of any psychiatric disorder were excluded. We assessed for sexual dysfunction by the ASEX. Results: ：The prevalence of sexual dysfunction in the patient group was 57.33%, while that of the control group was 23.37%. Female gender and the use of antidepressants were best predictors of sexual dysfunction in patient group. Sexual difference at sexual drive observed in the control group diminished in the patient group. Conclusion ：The present study demonstrated a higher prevalence of sexual dysfunction in patient group than control. Clinicians should consider the differential sexual dysfunction effects of antipsychotics when prescribing medications.

Background: This study aimed to investigate the relationship between exercise and depression based on responses to 2016 Korean National Health and Nutrition Examination Survey (KNHANES) and the Patient Health Questionairre-9 (PHQ-9). Specifically, this study examined which physical activities have the greatest effects in combating depression. Methods: This study was based on data from 2016 KNHANES and responses to the PHQ-9 questionnaire on physical activity. We selected 2,245 people of age >19 years, who completed the surveys. Physical activity variables included number of days of walking, duration of walking, days of strength training, and aerobic physical activity. These variables subdivided into aerobic and muscle strengthening activities and their effects on depression were examined. Results: All the variables, except duration of walking, were negatively correlated with the PHQ-9 scale scores. However, of the physical activity variables included in the hierarchical regression analysis, only the number of days of walking over 1 week had a statistically significant negative effect on the PHQ-9 scores. Conclusion For adults, aerobic activity (walking) had a greater effect on reducing depression than muscle strengthening activity. The frequency and consistency of walking had a greater impact than the duration of walks. These results suggest that regular walking is a better form of physical activity than strength training for its effect on mood and it assists in overcoming depression.

OBJECTIVE: We examined the factors influencing subjective memory complaints among community dwelling elderly in urban area. METHODS: The subjects of this research were 160 community-dwelling elderly people without dementia and major depressive disorder. The questionnaires regarding the socio-demographic characteristics were conducted by each person. They include Korean version of Subjective Memory Complaints Questionnaires (SMCQ), Korean version of Short Geriatric Depression Scale (SGDS-K) and Korean version of Mini-Mental State Examination (K-MMSE). Subjective memory complaints were defined as above 4 points of SMCQ. RESULTS: 39.38% of the subjects had subjective memory complaints. There were significant associations between subjective memory complaints and SGDS-K (p < 0.001), physical illness (p=0.001), but there was no association with K-MMSE (p=0.383). CONCLUSION: There is a discrepancy between subjective memory complaints and actual cognitive impairments. This discrepancy suggests that the depressive disorders including minor depressive disorder and subsyndromal depression, might play a role in the subjective memory complaints rather than actual cognitive impairments in community-dwelling elderly people. Therefore, the treatments for the depressive disorders should be considered in dealing with the subjective memory complaints.
Aged* ; Cognition Disorders ; Dementia ; Depression ; Depressive Disorder ; Depressive Disorder, Major ; Humans ; Independent Living* ; Memory*

Objectives: This study was designed to investigate whether there was a relationship between smoking and generalized anxiety disorder (GAD) in a Korean adult group. Methods: This study was based on the data from eighth Korean National Health and Nutrition Examination Survey (KNHANES). The subjects were 5,273 adults aged 19 years or older. Smoking group was classified into non-smoker, exsmoker, and current smoker. GAD was defined as above 10 points of GAD-7. The correlation between smoking and GAD was examined using complex sample design after adjusting confounders. Results: For male, smoking did not have a significant effect on GAD, but for female, current smokers were significantly more likely to have GAD than non-smokers (odds ratio=2.33, p=0.012). Conclusions The association between smoking and GAD was found only in female. The result means that a differentiated approach is needed for female and male in the management of smokers and patients with GAD.

Objectives: This study was designed to investigate whether there was a relationship between smoking and generalized anxiety disorder (GAD) in a Korean adult group. Methods: This study was based on the data from eighth Korean National Health and Nutrition Examination Survey (KNHANES). The subjects were 5,273 adults aged 19 years or older. Smoking group was classified into non-smoker, exsmoker, and current smoker. GAD was defined as above 10 points of GAD-7. The correlation between smoking and GAD was examined using complex sample design after adjusting confounders. Results: For male, smoking did not have a significant effect on GAD, but for female, current smokers were significantly more likely to have GAD than non-smokers (odds ratio=2.33, p=0.012). Conclusions The association between smoking and GAD was found only in female. The result means that a differentiated approach is needed for female and male in the management of smokers and patients with GAD.