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The Influence of Health Behaviors and Sleep related Factors on Cognitive Function in the Elderly Hypertensive Patients

노인 고혈압 환자의 건강행태 및 수면 관련 요인이 인지기능에 미치는 영향

  • Kim, Ahrin (Department of Nursing, Cheongju University) ;
  • Jeon, Hae Ok (Department of Nursing, Cheongju University)
  • Received : 2015.08.26
  • Accepted : 2015.10.08
  • Published : 2015.10.31
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Abstract

This study examined effects of health behaviors and sleep related factor on cognitive function in the elderly hypertensive patients. Data were collected through a face to face interview survey with structured questionnaire form 140 elderly with hypertension ($age{\geq}65years$) from February 5 to May 1, 2013. Research instruments included Pittsburgh Sleep Quality Index(PSQI), Epworth Sleepiness Scale(ESS) and Korean version the Mini-Mental State Examination(MMSE-K). Cognitive function was negatively related to degradation in quality of sleep(r=-.29, p<.001). Sleep duration were negatively related to body mass index(r=-.18, p=.032) and degradation in quality of sleep(r=-.59, p<.001). Sleep duration was positively related to daytime sleepiness(r=.22, p=.008). Hierarchical multiple regression showed that age, education levels and living arrangement were associated with cognitive function(F=8.56, p<.001, Adjusted $R^2=.14$). After controlling for demographic characteristics and health behaviors, degradation in quality of sleep(${\beta}=-.27$, p=.008) was identified as significant predictors of cognitive function. This final model explained 17.0% of the cognitive function in the elderly hypertensive patients(F=4.09, p<.001). Therefore, as a strategy improving cognitive function of the elderly with hypertension, therapeutic intervention should be developed to improve quality of sleep considering age, education levels and living arrangement.

본 연구의 목적은 노인 고혈압 환자의 건강행태, 수면 관련 요인이 인지기능에 미치는 영향을 파악하는 것이다. 연구대상은 지역사회에 거주하는 65세 이상 노인 중 고혈압을 진단 받은 140명이었다. 자료 수집은 2013년 2월 5일부터 5월 1일까지로 일대일면접 설문조사로 시행되었다. 연구도구는 Pittsburgh Sleep Quality Index(PSQI), Epworth Sleepiness Scale(ESS)와 한국어판 노인용 간이정신상태 검사 도구를 사용하여 측정하였다. 연구결과, 노인고혈압 환자의 인지기능은 수면의 질 저하와 유의한 음의 상관관계를 나타냈다(r=-.29, p<.001). 수면시간은 체질량지수(r=-.18, p=.032) 및 수면의 질 저하(r=-.59, p<.001)와 유의한 음의 상관관계가 있었고, 주간졸음과는 유의한 양의 상관관계가 있었다(r=.22, p=.008). 위계적 회귀분석 결과, 노인 고혈압 환자의 연령, 교육수준, 거주유형은 인지기능과 유의한 관련성이 있으며(F=8.56, p<.001, Adjusted $R^2=.14$), 인구사회학적 특성과 건강행태를 통제한 상태에서 수면의 질 저하(${\beta}=-.27$, p=.008)는 인지기능에 유의한 영향을 미치며, 최종 모형의 설명력은 17%였다(F=4.09, p<.001). 그러므로 노인 고혈압 환자의 인지기능 향상전략은 연령, 교육수준, 거주유형을 고려하고, 낮은 수면의 질을 향상 시킬 수 있는 치료적인 중재가 도움이 될 것으로 사료된다.

Keywords

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