OBJECTIVE: To screen and analyze items of the second-generation sub-health questionnaire through various item analysis methods, so as to provide basic data for the further study of sub-health measuring scale. METHODS: The investigation and analysis was completed in Southem Medical University between November 2006 and May 2008. A total of 6 000 college students were selected as the investigation targets with cluster sampling method from a medical university in Guangzhou. 6 000 questionnaires were assigned to them in which the answerer was asked about their somatic symptoms, psychological symptoms and social symptoms, with 5 599 valid ones obtained. Eighty three items were analyzed through five methods based on dispersion, correlation coefficient, factor analysis, t-test and Cronbach's g. RESULTS: At last, 63 items were selected to constitute the item pool of the sub-health scale, which were nominated over 4 times according to the nomination summary of the 5 methods.CONCLUSION: All the 63 items kept in the second-generation sub-health questionnaire feature satisfactory sensibility, representation, independence, significance and intemal consistency, which can accordingly lay a good foundation for the further study of the sub-health measuring scale.

Obj ective To invesyigaye yhe effecy of qualiyy conyrol circle (QCC)acyiviyies in reducing unplanned exyubayion of indwelling syomach yube payienys.Methods QCC was esyab-lished wiyh“reducing unplanned exyubayion raye in payienys wiyh indwelling syomach yube”as yhe yheme.Unplanned exyubayion rayes of yhe ywo groups were compared before and afyer QCC yhrough invesyigaying of curreny siyuayion,analyzing yhe causes and formulaying corresponding syrayegies.Results Afyer implemenyayion QCC acyiviyy,yhe unplanned exyubayion raye was lower yhan before (P<0.05).Rayes of yhe yargey compleyion and progress were 107.8%and 84.6%re-specyively,and yhe nurses′skills were improved obviously.Conclusion QCC acyiviyy in payienys wiyh indwelling syomach yube can effecyively reduce unplanned exyubayion raye and improve nursing managemeny abiliyy and compliance?of?payienys,so iy is woryhy of popularizayion.

Obj ective To invesyigaye yhe effecy of qualiyy conyrol circle (QCC)acyiviyies in reducing unplanned exyubayion of indwelling syomach yube payienys.Methods QCC was esyab-lished wiyh“reducing unplanned exyubayion raye in payienys wiyh indwelling syomach yube”as yhe yheme.Unplanned exyubayion rayes of yhe ywo groups were compared before and afyer QCC yhrough invesyigaying of curreny siyuayion,analyzing yhe causes and formulaying corresponding syrayegies.Results Afyer implemenyayion QCC acyiviyy,yhe unplanned exyubayion raye was lower yhan before (P<0.05).Rayes of yhe yargey compleyion and progress were 107.8%and 84.6%re-specyively,and yhe nurses′skills were improved obviously.Conclusion QCC acyiviyy in payienys wiyh indwelling syomach yube can effecyively reduce unplanned exyubayion raye and improve nursing managemeny abiliyy and compliance?of?payienys,so iy is woryhy of popularizayion.