Reliability and validity of the Chinese version of the 5-item oral health impact profile

doi:10.7518/hxkq.2020.02.006

Abstract

Abstract:

Objective To evaluate the reliability and validity of the Chinese version of the 5-item oral health impact profile (OHIP-5). Methods According to the international guidelines, the Chinese version of the OHIP-5 was produced. It was applied to patients who visit our clinic. The reliability of the scale was evaluated by internal consistency reliability and test-retest reliability. In addition, the validity of the scale was evaluated by construct validity and convergent validity. Results A total of 556 patients were enrolled in the study. The Cronbach’s alpha and the intraclass correlation coefficient values (ICC) of the Chinese version of the OHIP-5 were 0.868, 0.831, respectively. The results of the confirmatory factor analysis (CFA) showed that the one-factor model provided an acceptable fit to the data. The fit indices were: the chi-square fit statistics/degree of freedom (χ ²/df)=2.419, the goodness-of-fit index (GFI)=0.995, the adjusted goodness of fit index (AGFI)= 0.960, the normed fit index (NFI)=0.996, the incremental fit index (IFI)=0.997, the Tucker-Lewis index (TLI)= 0.985, the comparative fit index (CFI)=0.997, and the root mean square error of approximation (RMSEA)=0.070. For the convergent validity of the scale, the Spearman’s rank correlation coefficient was 0.674. Conclusion The Chinese version of OHIP-5 had a good reliability and validity by rigorous psychometric properties. Overall, it can be further promoted in clinical research and epidemiological investigations.

Key words: oral health impact profile, reliability, validity

CLC Number:

R780.1

Lü Hao, He Fuming. Reliability and validity of the Chinese version of the 5-item oral health impact profile[J]. West China Journal of Stomatology, 2020, 38(2): 145-148.

Figures/Tables 4

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References 10

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条目	得分		校正后的条目-量表间相关系数	预删除该项后量表的α系数
条目	均数	标准差	校正后的条目-量表间相关系数	预删除该项后量表的α系数
1.咬或咀嚼食物时有困难	2.09	0.92	0.685	0.857
2.出现过明显疼痛	1.59	0.71	0.708	0.820
3.吃东西感到不舒服	1.64	0.77	0.800	0.795
4.味觉变差	1.54	0.75	0.778	0.801
5.难以完成日常工作	1.56	0.77	0.779	0.800

条目	重测信度系数	95%可信区间	r_s*
1. 咬或咀嚼食物时有困难	0.804	0.686~0.897	0.650**
2. 出现过明显疼痛	0.823	0.675~0.910	0.642**
3. 吃东西感到不舒服	0.847	0.622~0.921	0.689**
4. 味觉变差	0.811	0.693~0.905	0.592**
5. 难以完成日常工作	0.825	0.684~0.904	0.703**
总分	0.831	0.689~0.919	0.674**

项目	χ²/df	GFI	AGFI	NFI	IFI	TLI	CFI	RMSEA
参考标准	2~3	>0.85	>0.8	>0.8	>0.8	>0.9	>0.9	<0.08
初始模型	3.451*	0.923	0.770*	0.941	0.943	0.886*	0.943	0.192*
修正模型	2.419	0.995	0.960	0.996	0.997	0.985	0.997	0.070