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Background Climate change leads to frequent heavy rainfall events, and higher incidences of bacillary dysentery after heavy rainfall have been observed. The impacts of heavy rainfall and its antecedent rainfall conditions on the disease are worth paying attention to. Objective To quantitatively analyze how the relationship between heavy rainfall events and bacillary dysentery occurrence is modified by antecedent rainfall conditions in Anhui Province and explore the different moderation effects in urban and rural contexts. Methods CN05.1 meteorological data of Anhui Province and cases of bacillary dysentery of the same area were collected from January 1, 2006 to August 31, 2017. An exposure-response Poisson regression model of heavy rainfall events and the number of daily cases was constructed to explore the moderation effect of antecedent rainfall conditions on the incidence of bacillary dysentery, and further stratified by urban and rural areas. Results This study included 129 459 cases of bacillary dysentery, with a daily average of 30.39. Compared with dry antecedent conditions without heavy rainfall, dry antecedent conditions with heavy rainfall had no obvious different effect on the incidence of bacillary dysentery for the whole province (P>0.05). But wet antecedent conditions significantly increased the risk of bacillary dysentery for the whole province after heavy rainfall (wet antecedent conditions without heavy rainfall: RR=1.281, 95%CI: 1.264-1.298; wet antecedent conditions with heavy rainfall: RR=1.267, 95%CI: 1.167-1.376). After urban and rural stratification, antecedent rainfall conditions also showed a significant moderation effect on the incidence of bacillary dysentery following heavy rainfall events. Compared with dry antecedent conditions without heavy rainfall, dry antecedent conditions with heavy rainfall had no obvious effect on the incidence of bacillary dysentery for the urban and the rural populations (P > 0.05). However, wet antecedent conditions without heavy rainfall (urban: RR=1.391, 95%CI: 1.362-1.421; rural: RR=1.222, 95%CI: 1.201-1.243) and wet antecedent conditions with heavy rainfall (urban: RR=1.364, 95%CI: 1.193-1.559; rural: RR=1.218, 95%CI: 1.098-1.352) significantly increased the risk of bacillary dysentery in both rural and urban areas. Conclusion In the influence of heavy rainfall on the incidence of bacillary dysentery in Anhui Province, antecedent rainfall conditions have a certain moderation effect in the whole province and in both urban and rural areas, and the risk of bacillary dysentery is increased under wet antecedent conditions.
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Objective:To investigate the relationship among five personality factors, negative life events and suicidal tendency of college students, so as to provide reference for college students' suicide prevention.Methods:A cross-sectional survey was conducted among 885 college students in Xi'an city, Shaanxi province. A comprehensive college, a science and engineering college and a liberal arts college were selected respectively. Three questionnaires were applied to all subjects, including big five personality questionnaire, life event questionnaire and scale of adolescents' suicide tendency. Hierarchical regression model was adopted to analyzed the relationship of big five personality traits, negative life events and suicide tendency. Pearson correlation analysis and mediating effect test were conducted by using SPSS 20.0 software.Results:There was no significant interaction between gender and negative life events on suicidal tendency ( β=-0.03, t=-0.96, P>0.05). Conscientiousness( β=-0.12, t=-4.06, P<0.01), neuroticism ( β=0.24, t=7.54, P<0.01), agreeableness( β=-0.15, t=-3.65, P<0.01), extroversion ( β=-0.27, t=-8.56, P<0.01) and openness ( β=-0.12, t=-3.38, P<0.01)in Big Five personality had significant moderating effect on the relationship between negative life events and suicidal tendency. High conscientiousness, high agreeableness, high extroversion and high openness had protective effect on the relationship between negative life events and suicidal ideation. High neuroticism was a risk factor of the relationship between negative life events and suicidal tendency. Conclusion:The five factors of personality are closely related with negative life events and suicidal ideation. The five factors of personality can regulate the relationship between life events and suicidal tendency.
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Objective To investigate the relationship between self-esteem and social anxiety,and the role of putting into perspective played in this relationship in university students.Methods Sample consisted university students of 376 females and 164 males,data were obtained on cognitive emotion regulation questionnaire,social anxiety subscale of the self-consciousness scale,and self-esteem scale.Results Cognitive emotion regulation strategies of putting into perspective is significantly and positively related to self-esteem(r=0.12,P＜ 0.01),it was also significantly and negatively related to social anxiety(r =-0.01,P ＜ 0.05) ; self-esteem was significantly and negatively related to social anxiety(r =-0.35,P ＜ 0.001).Cognitive emotion regulation strategies of putting into perspective played both a moderating(AR2 =0.124,P＜0.05) and mediating role(F=30.717,P＜ 0.01) in the relationship between self-esteem and social anxiety.Conclusion Self-esteem is not only directly but also indirectly associated with social anxiety because of the moderation and mediation model of putting into perspective.
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ObjectiveTo explore the moderating effects of self-efficacy between perfectionism and depression.MethodsUsing a convenient sampling method,a sample of 570 university students completed almost perfect scale-revised ( APS-R),general self-efficacy scale (GSE),beck depression inventory (BDI).ResultsCorrelational analyses indicated maladaptive perfectionism was positively correlated with depression ( r =0.47,P ＜0.01 ),and negatively correlated with self-efficacy ( r =- 0.24,P ＜ 0.01 ).In contrast,adaptive perfectionism was positively correlated with self-efficacy ( r =0.26,P ＜ 0.01 ),and was not correlated with depression ( r =0.05,P ＞ 0.05 ).Hierarchical regression analyses indicated the moderation effects of self-efficacy was significant (β =-0.12,P＜ 0.01 ) in that maladaptive perfectionism has closer relationship with depression when self-efficacy was low,suggesting that self-efficacy enhances the influence of maladaptive perfectionism on depression ( β =0.536,P =0.000 ),whereas high self-efficacy reduces the corresponding influence (β=0.239,P=0.018 ).ConclusionSelf-efficacy moderate the relation between maladaptive perfectionism and depression.