| Objectives: ( i ). To investigate the characteristics of the recruits' mental status and their related issues in different phases during the basic military training and to explore practical methods of supervising mental disorders in recruits, (ii). To develop a Life Events Inventory for Compulsory Servicemen of Land Army (LEI-CSLA) for psycho-medical study of armymen, administration of military units and psychological intervention, (iii). To analyze a relation model, in which factors including personality trait, coping style and social support were taken into account, between life events and mental symptoms for effective psychological intervention of problem recruits.Methods: ( i ). Self-rating questionnaires such as Symptom Checklist 90(SCL-90), Simplified Coping Style Questionnaire(SCSQ), Eysenck Personality Questionnaire (EPQ-adults)and Social Support Scale were used to investigate 1432 recruits, who were sampled randomly from a field emergency reaction unit, respectively before the training, at the end of the 1st month of training and at the end of the 2nd month oftraining. Clue investigation and scale screening methods were used to supervise mental disorders in recruits during the basic military training. All the data were analyzed by SPSS10.0.(ii). After investigating 145 armymen with opened questionnaire and consulting 15 experts about the strategy of inventory development, as well as reading some related reference, we formed the original structure of LEI-CSLA based on the theory of life events and the practice of its application. Then we investigated 356 compulsory armymen beforehand and developed the formal inventory that included 93 items ascribing to 5 dimensions (family events, local society events, training and service events, ordinary life events in the army, and events of interpersonal relation in the army). The formal samples consisted of 1731 compulsory armymen, among whom 134 general armymen together with 83 psychoses patients did LEI-CSLA re-testing at the intervals of 1~2 weeks. Reliability testing included test-retest, Cronbach's a coefficients and splitting coefficients. Validity testing included Exploratory Factor Analysis(EFA), Confirmatory Factor Analysis(CFA) and Criteria Related Validity(CRV), CRV was examined firstly by the scores of scales related to mental health status, and then by the differentia of LEI-CSLA score between mental disorder patients and normal control group, as well as by that among the groups which had different durationin the army, different age, different education level and different arms.(iii). After we had confirmed the satisfied reliability and validity of LEI-CSLA, we firstly used multiple regression analysis and interaction analysis to explore the direct factors affecting the mental status of recruits, then path analysis was carried out to probe into the ways in which the life events affect the recruits'mental symptoms and to identify the mediate factors through which life events affect mental symptoms.Results: ( i ). Emotional disturbances, such as anxiety, depression and phobia, and coping style were very obvious before the training, then at the end of the 1st month and the 2nd months of training in sequence; the score of Somatic symptoms at the end of the 1st month of training was the highest, then before the training and at the end of the 2nd month of training in sequence (P<0.01) . No statistically significant differences were found between the scores of Subjective social support in different time points during the training (P=0.93 ) , while the scores of objective social support increased and support utility decreased after training (P<0.05) . No significant difference among the total score of PSQI were found during the training (P=0.76) . Supervision of mental disorders showed that there were 19 stress related disorders patients, 5 neuroses patients, 3 mild mental retardation patients and 3 schizophrenia patients according to CCMD-3.( ii ). There were 93 items in formal LEI-CSLA. The epidemiological level o...
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