Study CP AORs (95% CI) CLP AORs (95% CI)
Class I Class II Class III Class I Class II Class III
Block et al. [59] 1.27 (0.98 - 1.63) 1.67 (1.21 - 2.3) 0.97 (0.59 - 1.62) 1.21 (0.98 - 1.49) 1.29 (0.96 - 1.74) 1.30 (0.9 - 1.89)
Marengo et al. [60] 1.46 (1.16 - 1.83) 1.33 (0.94 - 1.83) 1.49 (0.98 - 2.17) 1.13 (0.93 - 1.36) 1.12 (0.84 - 1.46) 1.55 (1.14 - 2.07)