Chen et al.16 | 2010 | Quanzhou | 171 | 100% female | 20–46 | Self-made questionnaire | 90 |
Deng et al.17 | 2010 | Dongguan | 120 | 100% female | 17–56 | Self-made questionnaire | 80 |
Xu et al.18 | 2010 | Harbin | 108 | 88.0% female | 19–49 | Self-made questionnaire | 100 |
Yin et al.19 | 2013 | Hebei | 672 | 89.3% female | N/A | Self-made questionnaire | 80 |
Wei et al.20 | 2014 | Nanjing | 256 | 91.0% female | 22–40+ | Self-made questionnaire | 100 |
Wang et al.21 | 2016 | Yinchuan | 909 | N/A | 31.93 ± 7.42 | Self-made questionnaire | 90 |
Zhang et al.22 | 2017 | Shizuishan | 172 | 100% female | 20–35+ | Self-made questionnaire and NRS scale | 100 |
Zhang et al.23 | 2017 | Lvliang | 100 | 93% female | N/A | NRS scale and BDI scale | 90 |
Tang et al.24 | 2018 | Mainland China | 1279 | 93.7% female | 20–45 | VAS scale and FABQ questionnaire | 100 |
Guan et al.13 | 2019 | Mainland China | 2458 | 96.4% female | 20–30+ | Self-made questionnaire and VAS scale | 100 |
Huang25 | 2019 | Zunyi | 203 | N/A | 20–50 | Self-made questionnaire | 90 |
Li et al.26 | 2019 | Sichuan | 783 | 98.5% female | 19–55 | RMDQ and FABQ questionnaires | 100 |
Wu27 | 2019 | Nanyang | 648 | N/A | 20–53 | Self-made questionnaire and VAS scale | 80 |
Zhang et al.28 | 2019 | Shandong | 498 | 85.3% female | 31.1 ± 7.6 | Self-administered questionnaire | 100 |