Abstract
To investigate factors contributing to the mental health of Vietnamese technical intern trainees in the food manufacturing industry, a questionnaire survey was conducted twice with a six-month interval. A total of 111 technical trainees who participated in two surveys were included in the analysis. We used a mixed-effects model, where items with statistically significant associations in the univariate analysis were fixed effects, factories were random effects, and the outcome was defined as the K6 score at follow-up. The mean K6 score increased from 3.13 (SD 3.5) at baseline to 3.86 (SD 4.1) at follow-up, with 26.1% and 34.2% exhibiting poor mental health (K6≥5) at baseline and follow-up, respectively. Insomnia and years of training experience were significantly associated with the K6 score at follow-up. Those with insomnia had significantly higher K6 score at follow-up. Compared to the first year of training, K6 score at follow-up increased significantly for training in their third year or more. It is important to understand the sleeping conditions of trainees and support them based on their years of training experience.
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