1.Adolescent self-harm and suicide attempts: An analysis of emergency department presentations in Singapore.
Darren Kai Siang CHONG ; Vicknesan Jeyan MARIMUTTU ; Pei Shan HOE ; Chu Shan Elaine CHEW ; Angelina Su Yin ANG
Annals of the Academy of Medicine, Singapore 2025;54(2):78-86
INTRODUCTION:
The rising rate of adolescent suicide, and the burden of self-harm and mental health disorders, pose significant threats to Singapore's future health outcomes and human potential. This study sought to examine the risk profile and healthcare utilisation patterns of Singaporean adolescents who presented to the emergency department (ED) for suicidal or self-harm behaviour.
METHOD:
A retrospective review of medical records for patients aged 10 to 19 years who visited Singapore's KK Women's and Children's Hospital ED for suicidal or self-harm attempts from January to December 2021 was conducted.
RESULTS:
A total of 221 patients were identified, with a predominance of female patients (85.5%) over males (14.5%). The mean age was 14.2 ± 1.4 years. Intentional drug overdose (52.0%) was the most commonly used method. Significantly more females presented for intentional paracetamol overdose (46.6% versus [vs] 28.1%, P=0.049), whereas jumping from a height was more common among males (18.8% vs 5.8%, P=0.022). The most frequently observed mental health challenges were stress-related and emotional coping difficulties (50.7%), followed by mood and anxiety symptoms (53.4%). A history of self-harm and suicidal behaviours were the most common psychosocial risk factors. Within the year prior to their ED presentation, 15.4% had accessed healthcare services for mild medical ailments, 19.5% for medically unexplained symptoms, and 17.2% for previous self-harm or suicide attempts.
CONCLUSION
Most cases involved psychosocial and emotional regulation difficulties, some of which displayed sex-specific patterns, rather than complex psychiatric disorders. The identified predictive factors can help inform Singapore's National Mental Health and Well-being Strategy, to guide targeted and transdiagnostic interventions in schools and community settings.
Humans
;
Adolescent
;
Singapore/epidemiology*
;
Female
;
Male
;
Suicide, Attempted/psychology*
;
Emergency Service, Hospital/statistics & numerical data*
;
Self-Injurious Behavior/psychology*
;
Retrospective Studies
;
Child
;
Young Adult
;
Drug Overdose/epidemiology*
;
Risk Factors
;
Acetaminophen/poisoning*
;
Patient Acceptance of Health Care/statistics & numerical data*
;
Sex Factors
2.Developmental trajectories and gender differences in adolescent non-suicidal self-injury.
Xiaocui ZHANG ; Ting ZHU ; Hui LEI ; Qijian DENG
Journal of Central South University(Medical Sciences) 2025;50(1):143-148
OBJECTIVES:
Non-suicidal self-injury (NSSI) is a common mental health and behavioral issue among adolescents. This study aims to investigate the developmental trajectory of adolescent NSSI and gender differences, providing a foundation for better prevention and intervention.
METHODS:
A longitudinal study was conducted using the Adolescent Self-Injury Scale (ASIS) in a cohort of 1 042 junior high school students from 3 middle schools in Zhangjiajie, Hunan Province. Participants were surveyed 3 times at 6-month intervals. A latent growth curve model was constructed using Mplus8.0 to examine the development trajectory of NSSI, and multi-group comparisons were used to assess gender differences.
RESULTS:
Detection rates of NSSI at the 3 time points were 43.95%, 44.43%, and 38.36%, respectively. Mean of the intercept factor of the LGCM for adolescent NSSI behavior was 9.540 (P<0.001), and the mean slope was -2.297 (P<0.001). Both the variances of the intercept (σ2=169.431, P<0.001) and slope (σ2=141.981, P<0.001) were significant, with a significant negative correlation between intercept and slope (r=-0.559, P<0.001). There were no statistically significant gender differences in initial level or rate of change of NSSI behaviors (P>0.05).
CONCLUSIONS
NSSI is relatively prevalent among adolescents, with female adolescents experiencing more severe NSSI. Individual differences exist in both the initial level and rate of change of NSSI, and overall, adolescent NSSI shows a decreasing trend over time. No significant gender differences were found in the trajectory of change.
Humans
;
Self-Injurious Behavior/psychology*
;
Adolescent
;
Male
;
Female
;
Longitudinal Studies
;
Sex Factors
;
Adolescent Behavior/psychology*
;
China/epidemiology*
;
Surveys and Questionnaires
;
Students/psychology*
3.HIV infection status and related factors in men who have sex with men in sentinel surveillance in Shanxi province, 2010, 2015 and 2020.
Fei ZHANG ; Xiao Yong NIE ; Chen Li YUAN ; Fang Chao LIU ; Yan Ru XIE ; Na LI ; Jun MENG ; Xiao Li GUO
Chinese Journal of Epidemiology 2022;43(4):554-559
Objective: To understand the infection status of HIV and related factors in men who have sex with men (MSM) in Shanxi province in 2010, 2015 and 2020. Methods: According to the sentinel surveillance protocol, continuous cross-sectional survey were conducted to collect the information about basic characteristics, general demographic characteristics, AIDS knowledge awareness, high-risk sexual behavior, sexually transmitted diseases, intervention services and HIV infection rate of the MSM in Shanxi in 2010, 2015 and 2020. Results: In 2010, 2015 and 2020, a total of 2 708 MSM were included in this study. There were significant differences in HIV infection rate among three years (χ2=23.76, P<0.001) with an increasing trend with year (trend χ2 =17.34, P<0.001). The rates of anal sex, commercial sex and heterosexual behavior in the past 6 months were 77.62% (2 102/2 708), 5.91% (160/2 708) and 28.14% (762/2 708) respectively, and the rates of consistent use of condom were 52.52% (1 104/2 102), 63.13% (101/160) and 23.49%(179/762) respectively, and the rate of consistent condom use was low. Results from multivariate logistic regression analysis showed that different cities, having educational level of junior high school or below, being recruited through internet, voluntary counseling and testing, suffering from sexually transmitted diseases, occasional condom use in anal sex in the past 6 months were the correlative factors of HIV infection of MSM. Conclusions: The HIV infection rate of MSM in Shanxi increased year by year from 2010, 2015 to 2020. The HIV/AIDS-related risk behavior persisted, and the proportion of condomuse adherence was low, and the HIV detection rate was low in the MSM, so targeted and effective measures should be taken to promote the condom use adherence and regular HIV testing in MSM.
Cross-Sectional Studies
;
HIV Infections/epidemiology*
;
HIV Testing
;
Homosexuality, Male
;
Humans
;
Male
;
Prevalence
;
Risk Factors
;
Risk-Taking
;
Sentinel Surveillance
;
Sex Work
;
Sexual Behavior
;
Sexual and Gender Minorities
;
Sexually Transmitted Diseases/epidemiology*
;
Surveys and Questionnaires
4.Analysis on psychoactive substances use in men who have sex with men in Tianjin.
Yan GUO ; Jie YANG ; Jian Yun BAI ; Zhong Quan LIU ; Xiao Yue DONG ; Long LI ; Xuan ZHAO ; Mao He YU
Chinese Journal of Epidemiology 2022;43(5):686-691
Objective: To understand the use of psychoactive substances and its related factors in men who have sex with men (MSM) in Tianjin. Methods: A cross-sectional survey was conducted in MSM recruited in Tianjin by snowball sampling from September 2017 to December 2020, the information about their social demographic information, use of psychoactive substances and behavioral characteristics were collected, meanwhile the blood samples were taken from them for HIV/syphilis detections. Multivariate logistic regression was used to explore related factors about psychoactive substances use. Results: A total of 9 218 MSM were included in the study, in whom 43.5% (4 013/9 218) had ever used psychoactive substances, including 92.6% (3 718/4 013)who used Rush and 17.2% (692/4 013) who used multi substances. Multivariate analysis showed that, the OR of psychoactive substances use in MSM who were in Han ethnic group was 0.68 (95%CI:0.51-0.91) compared with those who were in minor ethnic group; the OR of psychoactive substances use in MSM who were married or cohabited, divorced or widowed were 0.65 (95%CI: 0.57-0.71), 0.80 (95%CI: 0.65-0.97) respectively compared with those who were unmarried; the OR of psychoactive substances use in MSM who had the first homosexual sex at age of ≥30 years was 0.57 (95%CI: 0.44-0.74) compared with those who had the first homosexual sex at age of <30 years; the OR of psychoactive substances use in local MSM in Tianjin was 1.12 (95%CI: 1.03-1.23) compared with those who were not local residents in Tianjin; the OR of psychoactive substances use in MSM with education level of college or above was 1.29 (95%CI: 1.12-1.49) compared with those with education level of junior middle school or below; the OR of psychoactive substances use in MSM who had anal sex in the past six months was 1.93 (95%CI: 1.34-2.77) compared with those who had no anal sex; the OR of psychoactive substances use in MSM who had >2 homosexual partners in the last week was 1.62 (95%CI: 1.41-1.87) compared with those who had ≤2 homosexual partners; the OR of psychoactive substances use in MSM who had homosexual commercial sex in the past six months was 1.99 (95%CI: 1.62-2.45) compared with those who had no homosexual commercial sex; the OR of psychoactive substances use in MSM who had sexually transmitted diseases in the last year was 2.39 (95%CI: 1.82-3.12) compared with those who had no sexually transmitted diseases and the OR of psychoactive substances use in MSM who received peer education services in the last year was 1.63 (95%CI: 1.50-1.78) compared with those who received no peer education services. Conclusion: The prevalence of psychoactive substances use is high in MSM in Tianjin, and there are many influencing factors. It is necessary to conduct targeted interventions according to the influencing factors.
Adult
;
China/epidemiology*
;
Cross-Sectional Studies
;
HIV Infections/epidemiology*
;
Homosexuality, Male
;
Humans
;
Male
;
Prevalence
;
Risk Factors
;
Sex Work
;
Sexual Behavior
;
Sexual and Gender Minorities
;
Surveys and Questionnaires
;
Syphilis/epidemiology*
5.Behavioural changes during the COVID-19 pandemic: Results of a nationwide survey in Singapore.
Victoria J E LONG ; Jean C J LIU
Annals of the Academy of Medicine, Singapore 2021;50(3):222-231
INTRODUCTION:
As part of infection control measures for COVID-19, individuals have been encouraged to adopt both preventive (such as handwashing) and avoidant behavioural changes (e.g. avoiding crowds). In this study, we examined whether demographics predicted the likelihood that a person would adopt these behaviours in Singapore.
METHODS:
A total of 1,145 participants responded to an online survey conducted between 7 March and 21 April 2020. We collected demographic information and asked participants to report which of 17 behaviour changes they had undertaken because of the COVID-19 outbreak. Regression analyses were performed to predict the number of behavioural changes (preventive, avoidant, and total) as a function of demographics. Finally, we sought to identify predictors of persons who declared that they had not undertaken any of these measures following the outbreak.
RESULTS:
Most participants (97%) reported at least one behavioural change on account of the pandemic, with changes increasing with the number of local COVID-19 cases (
CONCLUSION
Our characterisation of behavioural changes provides a baseline for public health advisories. Moving forward, health authorities can focus their efforts on encouraging segments of the population who do not readily adopt infection control measures against COVID-19.
Adult
;
Age Factors
;
Aged
;
Aged, 80 and over
;
COVID-19/psychology*
;
Female
;
Follow-Up Studies
;
Hand Disinfection/trends*
;
Health Behavior
;
Health Policy
;
Health Surveys
;
Humans
;
Male
;
Middle Aged
;
Pandemics
;
Physical Distancing
;
Risk-Taking
;
Self Report
;
Sex Factors
;
Singapore/epidemiology*
;
Socioeconomic Factors
6.Association between socioeconomic status and prolonged television viewing time in a general Japanese population: NIPPON DATA2010.
Yuka SUMIMOTO ; Masahiko YANAGITA ; Naomi MIYAMATSU ; Nagako OKUDA ; Nobuo NISHI ; Yosikazu NAKAMURA ; Koshi NAKAMURA ; Naoko MIYAGAWA ; Motohiko MIYACHI ; Aya KADOTA ; Takayoshi OHKUBO ; Tomonori OKAMURA ; Hirotsugu UESHIMA ; Akira OKAYAMA ; Katsuyuki MIURA
Environmental Health and Preventive Medicine 2021;26(1):57-57
BACKGROUND:
It has been pointed out that prolonged television (TV) viewing is one of the sedentary behaviors that is harmful to health; however, the association between socioeconomic status (SES) and prolonged TV viewing time has not been sufficiently investigated in Japan.
METHODS:
The study population are the participants of NIPPON DATA2010, which is a prospective cohort study of the National Health and Nutrition Survey 2010 in Japan. They were residents in 300 randomly selected areas across Japan. This study included 2752 adults. SES was classified according to the employment status, educational attainment, living status, and equivalent household expenditure (EHE). Prolonged TV viewing time was defined as more than or equal to 4 h of TV viewing per day. Multivariable logistic regression analyses were conducted to examine the association of SES with prolonged TV viewing time.
RESULTS:
The mean TV viewing time was 2.92 h in all participants. Of 2752 participants, 809 (29.4%) prolonged TV viewing, and the mean TV viewing time of them was 5.61 h. The mean TV viewing time in participants without prolonged TV viewing time was 1.81 h. The mean TV viewing time was prolonged as age classes increased and significantly longer in aged ≥60 years. Prolonged TV viewing time was associated with not working for all age classes and sexes. Only among women, education attainment and living status were also associated with prolonged TV viewing time. For education attainment, the lower the received years of education, the higher odds ratios (OR) of prolonged TV viewing time. For living status, in women aged <60 years, living with others had a significantly higher OR compared to living with spouse. On the other hand, in women aged ≥60 years, living alone had a significantly higher OR. EHE did not have any significant associations with prolonged TV viewing time.
CONCLUSIONS
In a general Japanese population, it should be noted that the association between SES and prolonged TV viewing time differed by age and sex. Particularly, it must draw attention to the prolonged TV viewing in elderly. The intervention in order to shorten TV viewing time needs to consider these attributes.
Adolescent
;
Adult
;
Aged
;
Aged, 80 and over
;
Child
;
Child, Preschool
;
Educational Status
;
Female
;
Humans
;
Infant
;
Japan
;
Male
;
Middle Aged
;
Prospective Studies
;
Sedentary Behavior
;
Sex Factors
;
Social Class
;
Socioeconomic Factors
;
Television/statistics & numerical data*
;
Young Adult
7.Relationship between sleep duration and TV time with cardiometabolic risk in adolescents.
Ana Paula SEHN ; Anelise Reis GAYA ; Arieli Fernandes DIAS ; Caroline BRAND ; Jorge MOTA ; Karin Allor PFEIFFER ; Javier Brazo SAYAVERA ; Jane Dagmar Pollo RENNER ; Cézane Priscila REUTER
Environmental Health and Preventive Medicine 2020;25(1):42-42
OBJECTIVE:
To verify the association between sleep duration and television time with cardiometabolic risk and the moderating role of age, gender, and skin color/ethnicity in this relationship among adolescents.
METHODS:
Cross-sectional study with 1411 adolescents (800 girls) aged 10 to 17 years. Television time, sleep duration, age, gender, and skin color/ethnicity were obtained by self-reported questionnaire. Cardiometabolic risk was evaluated using the continuous metabolic risk score, by the sum of the standard z-score values for each risk factor: high-density lipoprotein cholesterol, triglycerides, glycemia, cardiorespiratory fitness, systolic blood pressure, and waist circumference. Generalized linear regression models were used.
RESULTS:
There was an association between television time and cardiometabolic risk (β, 0.002; 95% CI, 0.001; 0.003). Short sleep duration (β, 0.422; 95% CI, 0.012; 0.833) was positively associated with cardiometabolic risk. Additionally, age moderated the relationship between television time and cardiometabolic risk (β, - 0.009; 95% CI, - 0.002; - 0.001), suggesting that this relationship was stronger at ages 11 and 13 years (β, 0.004; 95% CI, 0.001; 0.006) compared to 13 to 15 years (β, 0.002; 95% CI, 0.001; 0.004). No association was found in older adolescents (β, 0.001; 95% CI, - 0.002; 0.002).
CONCLUSIONS
Television time and sleep duration are associated with cardiometabolic risk; adolescents with short sleep have higher cardiometabolic risk. In addition, age plays a moderating role in the relationship between TV time and cardiometabolic risk, indicating that in younger adolescents the relationship is stronger compared to older ones.
Age Factors
;
Brazil
;
epidemiology
;
Cardiovascular Diseases
;
epidemiology
;
ethnology
;
etiology
;
Cross-Sectional Studies
;
Metabolic Syndrome
;
epidemiology
;
ethnology
;
etiology
;
Prevalence
;
Risk Factors
;
Sedentary Behavior
;
ethnology
;
Sex Factors
;
Sleep
;
Television
;
statistics & numerical data
8.Application of HIV prevention information transmission model in prevention of high-risk sexual behavior among men who have sex with men.
Xiaofen QIN ; Xianhong LI ; Honghong WANG ; Jia CHEN
Journal of Central South University(Medical Sciences) 2020;45(4):411-417
OBJECTIVES:
To explore the effect of HIV prevention information transmission model in the prevention of high-risk sexual behavior among men who have sex with men (MSM).
METHODS:
To establish the HIV "expert-key informant-MSM" preventive information transmission model and to intervene the MSM high-risk sexual behavior. Before and 3 months after the intervention, MSM was measured by general information questionnaire, AIDS knowledge and sexual behavior questionnaire, MSM Health Belief Scale for HIV Prevention, and Safe Sexual Self-efficacy Scale.
RESULTS:
AIDS knowledge and sexual behavior scores in MSM after the intervention were significantly higher than those before the intervention (=-13.047, <0.001); the scores of health belief before and after the intervention were significantly higher (=-3.272, =0.001); condom use in MSM after the intervention was more common than that before the intervention (<0.05), except for commercial sex.
CONCLUSIONS
The application of HIV prevention information transmission model can effectively improve AIDS-related knowledge, HIV prevention health beliefs, condom use rate of MSM population, and in turn promote the transformation of their high-risk sexual behavior.
Acquired Immunodeficiency Syndrome
;
Condoms
;
HIV Infections
;
Homosexuality, Male
;
Humans
;
Male
;
Risk-Taking
;
Sex Work
;
Sexual Behavior
;
Sexual and Gender Minorities
9.Gender Differences in the Relationships between Pubertal Stages and the Perpetration of Self-inflicted and Interpersonal Violence among Middle School Students in China.
Pu Yu SU ; Geng Fu WANG ; Hao Yang REN ; Li Ru CHEN ; Guo Bao ZHANG ; Ying SUN
Biomedical and Environmental Sciences 2020;33(6):464-469
10.Research Status and Limitations of Sadomasochism.
Wan Ying LIANG ; Yu Qing ZHANG
Journal of Forensic Medicine 2020;36(6):828-830
Sadomasochism is the sexual interest, psychosexual deviance or sexual crimes that are sexually aroused by suffering or causing others to suffer. This study summarizes the concept, assessment and diagnosis, categories and symptoms, psychological and biological mechanisms, judicial disposition and clinical intervention strategies of sadomasochism from the perspectives of clinical medicine, law, criminology and psychology, suggests that further research should take local people with sadomasochism preference and local patients as research objects, pay attention to different types of sadomasochists, conduct bottom-up research, explore the core elements and manifestations of sadomasochism, and accurately define and classify sadomasochism, construct an effective scale, a erectile measurement sexual stimulation system and a diagnostic criteria; discuss evaluation methods combined with crime scene data; discuss the validity of masochists' consent combined with diagnosis; establish targeted criminal correction programs and a treatment and rehabilitation system to provide reference for the improvement of medical, judicial and mental health services.
Criminals
;
Humans
;
Male
;
Masochism
;
Sadism
;
Sex Offenses
;
Sexual Behavior

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