TABLE 4.

Leave‐one‐out sensitivity analyses

Excluded study	Relative risk	Heterogeneity
None	0.51 [0.31, 0.84]	Heterogeneity: Tau2 = 0.14; Chi2 = 7.91, df = 4 (p = 0.10); I 2 = 49%
Lavery et al. (2004) 13	0.56 [0.35, 0.89]	Heterogeneity: Tau2 = 0.10; Chi2 = 5.68, df = 3 (p = 0.13); I 2 = 47%
Armstrong et al. (2007) 12	0.54 [0.31, 0.94]	Heterogeneity: Tau2 = 0.16; Chi2 = 6.28, df = 3 (p = 0.10); I 2 = 52%
Lavery et al. (2007) 15	0.62 [0.40, 0.95]	Heterogeneity: Tau2 = 0.07; Chi2 = 4.37, df = 3 (p = 0.22); I 2 = 31%
Skafjeld et al. (2015) 14	0.43 [0.21, 0.88]	Heterogeneity: Tau2 = 0.30; Chi2 = 7.95, df = 3 (p = 0.05); I 2 = 62%
Bus et al. (2021) 5	0.41 [0.25, 0.70]	Heterogeneity: Tau2 = 0.03; Chi2 = 3.33, df = 3 (p = 0.34); I 2 = 10%