Abstract
Objectives This study aimed to investigate the effects of exposure to endocrine disrupting chemicals and social support on clinical practicum stress among nursing students with premenstrual syndrome.
 Methods This descriptive correlational study was conducted among 101 nursing students. The participants an-swered self-report questionnaires. The data were analyzed using the t-test, Pearson correlation coefficients, and hierarchical multiple regression in IBM SPSS version 23.0.
 Results The mean scores for exposure to endocrine disrupting chemicals, social support, and clinical practicum stress were 2.24±0.36, 4.19±0.62, and 2.43±0.56, respectively. Clinical practicum stress positively correlated with exposure to endocrine disrupting chemicals and negatively correlated with social support The explanatory power of the model was 18%, and it was statistically significant (F=8.25, p<.001). Social support (β=-.32, p<.001) was the most powerful variable affecting clinical practicum stress, followed by grade (β=.27, p=.005) and ex-posure to endocrine disrupting chemicals (β=.20, p=.030).
 Conclusions To reduce clinical practicum stress among nursing students with premenstrual syndrome, it is nec-essary to improve their social support and avoid exposure to endocrine disrupting chemicals. This study will pro-vide fundamental information on programming and a policy proposal related to clinical practicum stress for nursing students with premenstrual syndrome.
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