Purpose:The purpose of this study was to determine the factors that may affect quality of life of mothers who delivered premature infants. Methods: With survey design, data were collected from 145 mothers of premature infants with corrected age of 2 months to 12 months from January 9 to February 2, 2017. Quality of life was assessed with two measures of direct survey in the selected hospital and online survey. A self-report questionnaire was administered regarding personality of the mothers and the infants, postpartum depression, parenting stress, social support, and the quality of life. Data were analyzed using t-test, ANOVA, Pearson correlation coefficients, and multiple regression. Results: The quality of life of the mothers of the premature infants was influenced by postpartum depression, parenting stress, parents-infant dysfunctional interactions, and social support accounted for 65% of the variance. Conclusion: These results indicate that early screening and continuous management of postpartum depression during postpartum period are important to improve the quality of life of the mothers of the premature infants. Education program and information and social support systems need to be developed to monitor mother-infant interaction and their role development.

This study was conducted to investigate smoking characteristics and oral health status of the college students in practice for oral hygiene. The sample consisted of 298 at the scaling practice room of dental hygiene department in D College from April to November 2016. The data was analyzed with χ2-test and t-test using SPSS 18.0 program. Of 298, 40.9% was smoker. Of these, 51.7% smoked less than a pack a day. Smoker showed cold teeth and mouth dryness symptoms. It was high percentage of toothbrushing time of smoker is "2minutes" and non-smoker "3minutes". Also gingival bleeding on toothbrushing and halitosis were higher of smokers(p<0.05). O'learly index was the higest of smokers(p<0.05). I suggest with the result of the study that there needs a valid non-smoking treatment guidelines and oral health management for college students. Also These are required policy support for the continued active participation and

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