RT Journal Article
SR Electronic
T1 Sleep quality and military training injury during basic combat training: a prospective cohort study of Chinese male recruits
JF Occupational and Environmental Medicine
JO Occup Environ Med
FD BMJ Publishing Group Ltd
SP 433
OP 437
DO 10.1136/oemed-2020-106950
VO 78
IS 6
A1 Yi Ruan
A1 Xin Yu
A1 Huan Wang
A1 Bin Zou
A1 Wen-juan Song
A1 Wei Gu
A1 Chang-quan Ling
YR 2021
UL http://oem.bmj.com/content/78/6/433.abstract
AB Objective To examine the association between sleep quality and military training injury (MTI) in recruits during basic combat training (BCT).Methods Participants were new recruits undergoing 12-week military BCT in China. Sleep quality was measured by the Pittsburgh Sleep Quality Index (PSQI) . Participants were classified into two groups based on their sleep quality (group 1, good sleep, PSQI score <7; group 2, poor sleep, PSQI score ≥7) at the start of BCT. Logistic regression analysis was conducted to test whether baseline PSQI score was associated with MTI incidence during BCT.Results A total of 563 participants were included. The incidence of MTI was significantly lower in group 1 (48/203, 23.6%) than in group 2 (150/360, 41.7%) (p<0.001). Logistic regression analysis showed that the odds of MTI were 2.307 times higher in group 2 than in group 1 without adjusting for confounders: OR=2.307, p<0.001. When the model was adjusted for age, ethnicity, educational level and family income (OR=2.285) or for the previous confounders plus body mass index (OR=2.377), the results were similar (both p<0.001). Analysis of the types of initial MTI showed that group 2 had about 2.1 times higher odds of soft tissue injury than group 1 (p<0.001 in all the three models).Conclusion Sleep quality before BCT influences the incidence of MTI, especially of soft tissue injury.Data are available upon reasonable request. The dataset of this study is available from authors at any time by email. We keep all the original files of this study.