Objective To construct and validate a risk predictive model for fatigue in soldiers during long voyage based on sleep,mood and constitution.Methods One thousand soldiers during long voyage were selected as research objects by random cluster sampling.The fatigue scale-14(FS-14),Pittsburgh sleep quality index(PSQI),self-rating anxiety scale(SAS),self-rating depression scale(SDS),and TCM constitution scale were used to assess the occurrence of fatigue and its influence factors.Logistic stepwise regression analysis was used to screen variables,and the prediction nomogram model was constructed based on the risk factors of fatigue.The area under the receiver operator characteristic curve(AUC),calibration curve,Hosmer-Lemeshow test and decision curve were used for internal validation and predictive efficacy assessment.Results A total of 935 effective scales were collected,with an effective rate of 93.5%.Excluding 306 soldiers who were already fatigued before voyage,the fatigue incidence rate of 629 soldiers after 15 days and 30 days of voyage were 26.39%and 42.13%,respectively.The total score of FS-14 and the scores of physical fatigue and mental fatigue were significantly proportional to the voyage time(P<0.01).Eight variables including Qi-deficiency,Yang-deficiency,Yin-deficiency,Qi-stagnation,Special-constitution,anxiety,depression,and sleep disorder might be the independent risk factors for the occurrence of fatigue 30 days after voyage.A nomogram model was established according to the selected variables,and the AUC of the model was 0.828(95%CI:0.797-0.858).Calibration curve and Hosmer-Lemeshow test showed that the goodness of fit of the model was good(χ2=15.384,P=0.052).Decision curve showed that the model had a positive net benefit when the threshold probability was 10%-95%.Conclusion The predictive model for fatigue in soldiers during long voyage has good predictive accuracy and efficiency.It is an effective assessment tool for screening high-risk cases of fatigue and implementing preventive interventions in soldiers during long voyage.

Objective To investigate the distribution of Traditional Chinese Medicine(TCM)constitutions of offshore personnel of different categories and its correlation with health status.Methods The TCM constitution scale and sub-health measurement scale were used to assess TCM constitutions and health status of offshore personnel recuperating at Qingdao Special Service Sanatorium of Navy.And the results were statistically analyzed.Results There were 349(75.38%)persons with biased constitution among 463 interviewees.Damp-heat(20.83%),Yang deficiency(18.82%)and Yin deficiency(15.99%)were the common TCM constitutions.The TCM constitutions varied among different categories of offshore personnel.Yang deficiency and damp-heat were more common in surface warship crews and submarine crews.Aerial and land-based staffs were more prone to damp-heat and Yin deficiency.There were 293(63.28%)sub-healthy subjects among 463 interviewees,and 285(97.27%)of them had biased constitution.There was a significantly negative correlation between gentleness type and sub-health.Conclusion There is a relatively high proportion of offshore personnel with biased constitution and sub-health,and there is a significant correlation between biased constitution and sub-health.

Objective:To investigate the common diseases and the Constitution of Traditional Chinese Medicine of plateau-related soldiers, and explore the correlation between them.Methods:A total of 271 plateau-related soldiers in our sanatorium from January 1, 2020 to December 31, 2020 were selected as the subjects. All of them were assessed by the TCM constitution scale and the self-designed disease questionnaire and Sociodemographic information.Results:Eighty two percent of 271 plateau-related soldiers were regarded as paranoid constitution and 17.7% were gentleness type. There 73.1% of plateau-related soldiers had one or more diseases, and 90.9% of them were paranoid constitution. There were 47 cases of respiratory diseases, including 2 cases of gentleness type (4.3%) and 45 cases of paranoid constitution (95.7%); 53 cases of digestive system diseases, including 1 case of gentleness type (1.9%) and 52 cases of paranoid constitution (98.1%); 27 cases of skin diseases, including 1 case of gentleness type (3.7%) and 26 cases of paranoid constitution (96.3%); 148 cases of musculoskeletal diseases, including 15 cases of gentleness type (10.1%) and 133 cases of paranoid constitution (89.9%). The digestive system diseases with the highest proportion of paranoid constitution were selected for TCM Constitution correlation analysis, suggesting that there was a correlation between them( χ2=11.32, P<0.01). People including Qi deficiency and phlegm-dampness were more prone to digestive system diseases ( P<0.01). There was a significant negative correlation between gentleness type and digestive system diseases [ OR=0.17, 95% CI(0.040-0.726); P=0.017], as well as Qi deficiency [ OR=4.98, 95% CI(2.717-9.120)] and phlegm-dampness [ OR=12.00, 95% CI(5.269-27.332)]were risk factors for them ( P<0.01). Conclusions:The overall health level of plateau-related soldiers was not optimistic. The digestive system diseases of them were positively correlated with Qi deficiency and phlegm-dampness.