|
| Included systematic reviews | Number of studies included | Ovulation rate effect (95% CI) | GRADE quality of evidence | Relegation factors |
|
| Yan Lun et al. 2015 [17] | 9 | OR = 2.18, 95% CI (1.63, 2.92) | Very low | ①④⑤ |
| Xiao Chao 2016 [18] | 8 | RR = 1.10, 95% CI (0.87, 1.39) | Very low | ①②④⑤ |
| Li Nan et al. 2017 [19] | 6 | OR = 2.70, 95% CI (1.32, 5.45) | Very low | ①②④⑤ |
| Huang Wenfang et al. 2018 [23] | 6 | OR = 2.18, 95% CI (1.77, 2.68) | Low | ①⑤ |
| Liu Ying et al. 2019 [24] | 8 | RR = 1.34, 95% CI (1.23, 1.46) | Low | ①⑤ |
| Yuan BoChao 2019 [25] | 6 | RR = 0.97, 95% CI (0.86, 1.09) | Very low | ①②④⑤ |
| Ji Lin 2019 [26] | 14 | OR = 1.92, 95% CI (1.40, 2.64) | Low | ①② |
| Xie Peng Peng et al. 2019 [27] | 10 | RR = 1.17, 95% CI (1.02, 1.34) | Low | ①④ |
| Yuan BoChao 2019 [25] | 5 | RR = 1.18, 95% CI (1.03, 1.37) | Low | ①④ |
| Li Nan et al. 2020 [30] | 4 | OR = 3.91, 95% CI (1.95, 7.84) | Very low | ①④⑤ |
| Du Xiu et al. 2020 [31] | 6 | RR = 1.17, 95% CI (1.03, 1.34) | Very low | ①②④ |
| Lin BeiBei 2020 [32] | 6 | RR = 1.31, 95% CI (1.16, 1.48) | Low | ①④ |
| Chen JinMing et al. 2020 [33] | 3 | RR = 1.21, 95% CI (1.07, 1.37) | Very low | ①④⑤ |
|
