摘要：This study examined cortisol patteming in 160 children (79 boys,81 girls;aged 4-5) attending twelve childcare centers in Seoul and K yunggi Province. Saliva samples for the assay of cortisol were collected twicea day at 10 : 30 am and 3 : 30 pm. Saliva samples were collected again within a week after the first collection. Data were analyzed with descriptive staristics and muliple regression analysis. The cortisol level of the aftermoon showed neither increase nor decrease compared to morning. Regression analysis indicated that time children spent at childcare centers accounted for increased aftermoo cortisol levels;that is, higher levels of aftermoon cortisol were associated with more hours per day at childcare centers..
关键词：cortisol Level;stress;quality of child care;time spending at child care center
