Table 2.
Basic characteristics of included studies (n = 60).
| Basic characteristics | No. of studies n (%) | Basic characteristics | No. of studies n (%) |
|---|---|---|---|
| Year of publication | Province | ||
| 2010 | 1 (1.67%) | Guangdong | 8 (13.33%) |
| 2013 | 1 (1.67%) | Hunan | 8 (13.33%) |
| 2014 | 2 (3.33%) | Shanghai | 8 (13.33%) |
| 2015 | 1 (1.67%) | Beijing | 7 (11.67%) |
| 2016 | 2 (3.33%) | Sichuan | 4 (6.67%) |
| 2017 | 5 (8.33%) | Henan | 3 (5.00%) |
| 2018 | 3 (5.00%) | Hubei | 3 (5.00%) |
| 2019 | 15 (25.00%) | Zhejiang | 3 (5.00%) |
| 2020 | 18 (30.00%) | Chongqing | 3 (5.00%) |
| 2021 | 12 (20.00%) | Jiangsu | 2 (3.33%) |
| Language | Liaoning | 2 (3.33%) | |
| Chinese | 55 (91.67%) | Shaanxi | 2 (3.33%) |
| English | 5 (8.33%) | Tianjin | 2 (3.33%) |
| Funding support | Fujian | 1 (1.67%) | |
| National | 10 (16.67%) | Hebei | 1 (1.67%) |
| Municipal | 6 (10.00%) | Heilongjiang | 1 (1.67%) |
| Provincial | 8 (13.33%) | Shanxi | 1 (1.67%) |
| Organizational | 12 (20.00%) | Anhui | 1 (1.67%) |
| No | 24 (40.00%) | Research design | |
| Ethics | Cross-sectional study | 17 (28.33%) | |
| No | 34 (56.67%) | Randomized controlled trial | 14 (23.33%) |
| Yes | 26 (43.33%) | Non-Randomized controlled trial | 13 (21.67%) |
| Qualitative study | 9 (15.00%) | ||
| Mixed-method study | 7 (11.67%) |