Background/Objectives: Drowning among children younger than five years remains a major public health problem in Thailand, particularly in residential water environments. Caregivers’ supervision and home safety practices play an important role in preventing childhood drowning. This study evaluated the association between participation in the Be SAFE Program, a community-based educational intervention developed using the Health Belief Model (HBM), and changes in caregivers’ health beliefs and self-reported drowning prevention behaviors. Methods: A quasi-experimental pretest–posttest control group study was conducted among 60 caregivers of children younger than five years recruited from two community settings in Ubon Ratchathani Province, Thailand. Participants were assigned to either an intervention group (n = 30) or a control group (n = 30). The intervention group participated in the HBM-based Be SAFE Program, whereas the control group received routine care. Outcomes included HBM constructs and self-reported drowning prevention behaviors. Baseline-adjusted analyses of covariance (ANCOVA) were performed to compare post-intervention outcomes between groups. Holm adjustment was applied to account for multiple comparisons. Results: After adjustment for baseline scores, caregivers in the intervention group demonstrated significantly greater improvements than those in the control group in perceived susceptibility, perceived severity, perceived benefits, cues to action, self-efficacy, and self-reported drowning prevention behaviors, together with significantly lower perceived barriers (all Holm-adjusted p < 0.05). Large effect sizes were observed across all measured outcomes. Conclusions: The findings suggest that the HBM-based Be SAFE Program was associated with greater short-term improvements in caregivers’ health beliefs and self-reported drowning prevention behaviors than routine care. These findings support the potential value of theory-based community educational programs for childhood drowning prevention while highlighting the need for larger multi-site studies with longer follow-up to confirm the program’s effectiveness and broader applicability.

Following the legalization of cannabis in Thailand, there has been a rise in usage, especially among adolescents, due to inadequate health literacy and a perceived low risk, highlighting the need for school-based health education programs to reduce harm. These initiatives can alleviate cannabis abuse and promote responsible decision-making, benefiting both individuals and society. This study administered pre- and post-assessments to two groups. Study participants were categorized into experimental and control groups. Health literacy was provided to the experimental group to deter cannabis intake. The control group was provided with informational brochures regarding cannabis. This study focused on lower secondary pupils from ten demonstration schools in Bangkok. The researchers selected schools and then utilized multi-stage sampling to randomly select 7th, 8th, and 9th grades. The G*Power software determined a sample size of 76 individuals (38 in each group) using effect size estimations, a 95% confidence level, and 0.8 testing power, while factoring in a 10% dropout rate. Demographics, health literacy, cannabis knowledge, communication, self-management, media literacy, and decision-making were assessed by questionnaires. The control group received cannabis leaflets, whereas the experimental group attended an intervention program. The results demonstrated that in all health literacy categories related to cannabis prevention, the experimental group showed improvements in communication, self-management, media literacy, decision-making, and information accessibility. The control group showed negligible improvement in these domains. Notwithstanding the legalization of cannabis in 2022, Thai students remain inadequately informed about the substance. The findings demonstrate that health education programs improve health literacy and prevent cannabis use.