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Association Between Internet Gaming Disorder and Suicidal Ideation Mediated by Psychosocial Resources and Psychosocial Problems Among Adolescent Internet Gamers in China: Cross-Sectional Study

Association Between Internet Gaming Disorder and Suicidal Ideation Mediated by Psychosocial Resources and Psychosocial Problems Among Adolescent Internet Gamers in China: Cross-Sectional Study

The Chi-square (χ2) test and independent-sample t test were performed to examine between-group differences regarding categorical and continuous variables, respectively. Pearson correlation coefficients (r) were generated to assess correlations between variables. Univariate and multivariate logistic regression analyses (adjusted for sociodemographics and probable moderate or above depression) were conducted to test the significant factors (IGD and psychosocial factors) for suicidal ideation.

Yanqiu Yu, Anise M S Wu, Vivian W I Fong, Jianxin Zhang, Ji-bin Li, Joseph T F Lau

JMIR Serious Games 2024;12:e48439

Uptake of an App-Based Case Management Service for HIV-Positive Men Who Have Sex With Men in China: Process Evaluation Study

Uptake of an App-Based Case Management Service for HIV-Positive Men Who Have Sex With Men in China: Process Evaluation Study

Chi-square analysis and independent group 2-tailed t tests were used to compare adherence and IMB scores between groups, respectively. A pairwise 2-tailed t test was used to compare the change in information and motivation scores between baseline and month-1 follow-up. In addition to descriptive analysis, we conducted a series of exploratory analyses to test the month-1 efficacy of the intervention and to explore the potential mechanism between intervention uptake and month-1 behavioral outcomes.

Xiaoyan Fan, Ke Ning, Cong Liu, Haidan Zhong, Joseph T F Lau, Chun Hao, Yuantao Hao, Jinghua Li, Linghua Li, Jing Gu

J Med Internet Res 2023;25:e40176

Two Web-Based and Theory-Based Interventions With and Without Brief Motivational Interviewing in the Promotion of Human Papillomavirus Vaccination Among Chinese Men Who Have Sex With Men: Randomized Controlled Trial

Two Web-Based and Theory-Based Interventions With and Without Brief Motivational Interviewing in the Promotion of Human Papillomavirus Vaccination Among Chinese Men Who Have Sex With Men: Randomized Controlled Trial

.: 2015.687-T). Among 1235 prospective participants who were approached, none had received HPV vaccination. A total of 724 MSM were eligible for participation after screening, 100 refused to participate in the study for time and/or other logistical reasons, and 624 completed the baseline survey. The response rate was 86.2%.

Zixin Wang, Joseph T F Lau, Tsun Kwan Mary Ip, Yebo Yu, Francois Fong, Yuan Fang, Phoenix K H Mo

J Med Internet Res 2021;23(2):e21465

Social, Cognitive, and eHealth Mechanisms of COVID-19–Related Lockdown and Mandatory Quarantine That Potentially Affect the Mental Health of Pregnant Women in China: Cross-Sectional Survey Study

Social, Cognitive, and eHealth Mechanisms of COVID-19–Related Lockdown and Mandatory Quarantine That Potentially Affect the Mental Health of Pregnant Women in China: Cross-Sectional Survey Study

Differences in depression scores and anxiety scores based on sociodemographic characteristics were compared by either an independent 2-tailed t test or analysis of variance. The effect size (ie, Cohen d or Cohen f) was reported. Bivariate correlations between the key variables were presented. The effect size was considered low if the value of r varied around .10, medium if r varied around .30, and large if r varied by more than .50 [57].

Xue Yang, Bo Song, Anise Wu, Phoenix K H Mo, Jiangli Di, Qian Wang, Joseph T F Lau, Linhong Wang

J Med Internet Res 2021;23(1):e24495

Influence of Social Media on Sexualized Drug Use and Chemsex Among Chinese Men Who Have Sex With Men: Observational Prospective Cohort Study

Influence of Social Media on Sexualized Drug Use and Chemsex Among Chinese Men Who Have Sex With Men: Observational Prospective Cohort Study

Baseline background characteristics of participants who were followed up at Month 6 and those who were lost to follow-up were compared using chi-square tests (for categorical variables) or independent sample t tests (for continuous variables). The subsequent analysis was performed among those who had completed both surveys.

Zixin Wang, Xue Yang, Phoenix K H Mo, Yuan Fang, Tsun Kwan Mary Ip, Joseph T F Lau

J Med Internet Res 2020;22(7):e17894