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국회도서관 홈으로 정보검색 소장정보 검색

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ABSTRACT 7

I. 緖論 10

II. 이론적 배경 12

1. 삶의 질과 선호 및 효용이론 12

2. 삶의 질 측정 방법 13

3. 국민건강영양조사 자료 15

III. 연구 방법 17

1. 연구대상 17

2. 연구 목적 17

3. 주 변수들의 평가 방법 17

(1) THI 17

(2) EQ-5D 18

(3) HUI-Ⅲ 19

4. 통계학적 분석 방법 20

(1) 국민건강영양조사 자료 분석 20

(2) 임상연구 참여자 자료 분석 20

IV. 연구 결과 22

1. 국내 이명증 환자의 표준화 유병율 22

2. 국내 이명증 환자의 삶의 질 25

3. 국내 이명증 환자의 질환 중증도에 따른 삶의 질 31

4. 일 대학병원 이명증 임상연구 참여자들의 기저 특성 34

5. 임상연구 참여자들의 EQ-5D와 HUI-III의 측정 일치성 36

6. 이명증 환자의 THI와 삶의 질 평가도구 간의 상관성 39

(1) THI와 EQ-5D의 상관분석 결과 39

(2) THI와 HUI-III의 상관분석 결과 42

(3) THI와 EQ-5D, HUI-III의 하부척도 간 상관분석 결과 45

7. 삶의 질 변수에 대한 회귀분석 47

(1) 국민건강영양조사 자료를 이용한 위계적 회귀분석 결과 47

(2) 임상연구 참여자들의 자료에 대한 위계적 회귀분석 결과 49

V. 考察 52

VI. 結論 61

參考文獻 64

표목차

Table I. 연령별 평균 유병율 및 연령 표준화 유병율 12세 이상) 23

Table II. 국내 인구의 이명증에 따른 삶의 질(EQ-5D) 26

Table III. 층화 그룹별 이명증의 삶의 질 27

Table IV. 층화 그룹별 이명증의 삶의 질 32

Table V. 이명증 임상시험 참여자의 기저 특성 35

Table VI. THI의 하부척도들과 EQ-5D, HUI-III의 하부척도들의 Spearman 상관분석 결과 46

Table VII. 국민건강영양조사를 이용한 위계적 회귀분석 결과 48

Table VIII. 임상시험 자료를 이용한 위계적 회귀분석 결과 50

그림목차

Fig. 1. Time trade-off for a chronic health state preference to death 14

Fig. 2. Standard gambling for chronic health state preferred to death 14

Fig. 3. Tinnitus prevalence of age groups 24

Fig. 4. Differences of EQ-5D between normal and tinnitus according to... 28

Fig. 5. Differences of EQ-5D between normal and tinnitus according to... 29

Fig. 6. Differences of EQ-5D between normal and tinnitus according to... 30

Fig. 7. EQ-5D and tinnitus status 33

Fig. 8. Bland-Altman plot of EQ-5D and HUI-III (1st visit) 37

Fig. 9. Bland-Altman plot of EQ-5D and HUI-III (5th visit) 38

Fig. 10. Correlation between THI and EQ-5D (baseline measure) 40

Fig. 11. Correlation between delta THI and delta EQ-5D(1st and 5th m... 41

Fig. 12. Correlation between THI and HUI-III (baseline measure) 43

Fig. 13. Correlation between delta THI and delta HUI-III 44

Fig. 14. Linear regression line of model 4.(adjusting other variables) 51

초록보기

Objective : This study was done to investigate the correlation between general quality of life(QOL) and disease specific QOL of tinnitus patients and develop the mapping.

Methods : 2009 National health and nutrition survey(NHNS) data and clinical research data of 120 tinnitus patients in a hospital were employed for analyzing the correlation of Tinnitus Handicap Inventory(THI), EQ-5D and Health Utility Index-III(HUI-III), and predicting the regression equation of mapping between measures. Baseline statistical analyses and normality tests were done by using Student t-test, Chi-square test, Shapiro-Wilk test and ladder test. Pearson analysis and Spearman analysis were conducted to examine the correlation of each variables and display using scatter plots and Bland-Altman plots. Hierarchial regression analyses were performed using related variables and predicted the optimal regression equations. Statistical significance was achieved if the probability was less than 5%.

Results : Firstly, the standardized prevalence of tinnitus patient in South Korea was 18.69% and over 90th age-group was relatively higher than other groups. Mean value of domestic QOL measured by EQ-5D was estimated as 0.9486 and QOL of tinnitus subgroup(0.9169) was lower than the non-tinntius subgroup(0.9559), significantly. Stratified by age and sex, QOLs of all sub-groups with tinnitus were lower than without tinnitus sub-groups significantly. Bland-Altman plots showed the 95% consistency between EQ-5D and HUI-III of first visit measures, and 94% consistency of final visit measures. The Spearman correlation analyses showed the statistical significances between THI and EQ-5D, and THI and HUI-III. Correlations between subscale measures of THI, EQ-5D and HUI-III showed the significance at the vision, hearing, emotion, cognition and pain subscales. Regression equations from 2009 NHNS and a tinnitus clinical trial data were developed using hierarchial regression analyses.

Conclusion : We confirmed the correlation among THI and EQ-5D and HUI-III, and developed the inference for regression equation of EQ-5D using tinnitus severity measure and THI, The modeling equations must be tried in future studies with larger and more diverse samples to confirm their appropriateness for estimating quality-adjusted life-year in tinnitus-patient trials including only the THI.