Voluntary blood donation (VBD) is the foundation of blood safety and safe transfusion methods. It is vital to boost volunteer donor recruitment and retention to ensure a long-term safe blood transfusion practice, especially among university students. The goal was to evaluate Khulna University students' blood donation knowledge, attitude, and practice (KAP) as well as associated factors. A cross-sectional study was conducted at Khulna University in April 2022. Using simple random sampling (SRS), 400 face-to-face interviews were taken, of which 394 records were used for further analysis. A Chi-square test was used to check the association between KAP toward VBD, and binary logistic regression was applied to identify the association between explanatory and outcome variables. The logistic regression reveals that students with good knowledge about VBD are associated with permanent residence (OR: 1.651; 95% CI: 1.028, 2.650) and education (OR: 1.746; 95% CI: 1.012, 3.014). Favorable attitude toward VBD is associated with gender (OR: 1.818; 95% CI: 1.073, 3.079), division (OR: 3.058; 95% CI:1.241, 7.535) and social media time (OR: 0.068; 95% CI:0.001, 0.876). The practice of VBD is associated with gender (OR: 5.375; 95% CI:3.115, 9.273) and current residence (OR: 0.0397; 95% CI:0.181, 0.869). Efforts should be undertaken to use knowledge and a favorable attitude toward students at the Khulna university to accomplish the aim of 100% VBD in the future.

Tobacco smoking (TS) is a leading preventable cause of death internationally. The young generation is getting addicted to smoking rapidly which is alarming for the future generation. It is essential to increase awareness about exposure to TS in the environment (TSE) among youths in Southeast Asia.  This study targets to obtain a reliable prevalence and associated factors of TSE among youths in Southeast Asia, as well as, to identify the major influencing factors for smoking. The Global Youth Tobacco Study (GYTS), a nationwide representative cross-sectional survey based on school-going adolescents of tobacco consumption and underlying factors among youths was examined in this study. Datasets from Bangladesh (2013), Indonesia (2019), and Thailand (2015) representing Southeast Asia were selected to analyze the prevalence of exposure to TSE. Predictors namely fundamental features, smoking at home, enclosed public spaces and other public locations, lessons about the influence of TS in class, etc. were found associated with TS. Tobacco use among adolescents is substantially associated with their social environment (at home and public locations). In Bangladesh, Indonesia, and Thailand, correspondingly 33%, 44.5% and 39.1% of participants were exposed to TS at home. In Bangladesh, for example, exposure to TS at home was a strong predictor of adolescent TS (OR=3.64; 95% CI=2.53-5.21); in Indonesia, (OR=0.42; 95% CI=0.38-0.48); and in Thailand, (OR=0.58; 95% CI=0.45-0.74). Similarly, adolescents who were aware of their exposure to TS were less likely to smoke. TS use prevention among school-going adolescents should be every government's top goal to reduce tobacco consumption to get a healthy generation.