• Feng Cheng, Junfang Xu, Chunyan Su, Xiaoxing Fu, and Jonathan Bricker.
• Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China.
• JMIR Mhealth Uhealth. 2017 Jul 11; 5 (7): e93.

BackgroundWith 360 million smokers, China consumes more cigarettes than any other country in the world. Given that 620 million Chinese own smartphones, smartphone apps for smoking cessation are increasingly used in China to help smokers quit.ObjectiveThis study analyzed and evaluated the contents of all smoking cessation apps (iOS and Android) available in China, applying the China Clinical Smoking Cessation Guideline (CCSCG; identical to the US Clinical Practice Guideline for Treating Tobacco Use and Dependence) as a framework for analysis.MethodsWe conducted a content analysis of Chinese Android and iOS smoking cessation apps (N=64) designed to assist users in quitting smoking. Each app was independently coded by two raters for its approach to smoking cessation and adherence to the CCSCG. We also recorded the features of smoking cessation apps (eg, release date, size, frequency of downloads, user ratings, type, quality scores by raters, and designers). Linear regression was used to test predictors of popularity and user-rated quality.ResultsChinese smoking cessation apps have low levels of adherence to guidelines, with an average score of 11.1 for Android and 14.6 for iOS apps on a scale of 0 to 46. There was no significant association between popularity, user rating, and the characteristics of apps. However, there was a positive relationship between popularity, user rating, and adherence score.ConclusionsChinese apps for smoking cessation have low levels of adherence to standard clinical practice guidelines. New apps need be developed and existing apps be revised following evidence-based principles in China.©Feng Cheng, Junfang Xu, Chunyan Su, Xiaoxing Fu, Jonathan Bricker. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 11.07.2017.

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