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| Reliability and validity of Chinese Pediatric Quality of Life Inventory in influenza cases |
| WANG Shenyu*, GAN Zhengkai, HU Xiaosong, SHAO Yanzhi, CHEN Yingping, LIANG Zhenzhen, XING Bo, CHEN Zhiping, LÜ Huakun
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| Zhejiang Provincial Center for Disease Control and Prevention,Hangzhou,Zhejiang 310051,China |
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Abstract Objective To explore the reliability and validity of the Chinese Pediatric Quality of Life Inventory（PedsQL）in influenza children. Methods From January 2017 to February 2018,we selected laboratory-diagnosed influenza cases and healthy children according to age and gender ratio by stratified random sampling and systematic sampling method. We employed Chinese version of PedsQL 4.0 to investigate their quality of life,used Cronbach's α to evaluate the reliability,and used Pearson correlation coefficient, t-test,confirmatory factor analysis（CFA）and ROC curve to evaluate the validity. Results Totally 300 influenza cases and 300 healthy children were surveyed,with 294（98.00%）and 295（98.33%）valid questionnaires recovered. The general Cronbach's α was 0.89,and the Cronbach's α of each dimension ranged from 0.79 to 0.84. The Pearson correlation coefficients between the items and their belonged dimension ranged from 0.537 to 0.755,between the items and other dimension ranged from 0.203 to 0.384. The CFA resulted in RMSEA of 0.06,GFI of 0.88,AGFI of 0.90,CFI of 0.91 and NFI of 0.89. The scores in total and in all the dimensions in influenza cases were significantly different with those in healthy children（P<0.05）. Taking the scores in influenza cases as a golden standard,the area under the ROC curve was 0. 985（P<0.05）,the sensitivity was 0.92,and the specificity was 0.95. When the limit score was 82.18,the Youden index was the largest. Conclusion The Chinese version of PedsQL4.0 has good reliability and validity, which can be applied to quality of life assessment in children.
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Received: 24 December 2019
Revised: 19 January 2020
Published: 12 May 2020
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