Table 2.

Pelvic radiographic outcomes for normal group.

Author	# Patients	Age mean (SD)	Standing mean (SD)			Sitting mean (SD)
			SS	PT	PI	SS	PT	PI
Zhao et al., 202242	145	23.1 (2.3)	34.9 (7.1)	11.8 (6.5)	46.6 (9.1)	19.7 (8.7)	28.4 (10.0)	48.0 (9.1)
Zhou et al., 20203	140	23.2 (2.6)	35.4 (7)	11.9 (6.2)	47.2 (9)	19.7 (8.5)	28.1 (9.9)	–
Zhou et al., 20203	95	53.3 (6.2)	34.3 (8.8)	14.2 (7)	48.6 (9.7)	28.2 (9.3)	20.4 (10.4)	–
Nishida et al., 202044	113	45.2	32.6 (8.3)	14.4 (7.3)	47.0 (9.25)	16.6 (9.4)	65.17 (8.24)	–
Maekawa 201945	105	33.3 (8.4)	34.6 (7.7)	19.7 (16.4)	–	18.1 (10.1)	32.5 (12.7)	–
Maekawa 201945	80	61.6 (5.4)	31.3 (8.5)	22.2 (15.1)	–	18.8 (10.1)	33.3 (14.0)	–
Maekawa 201945	68	75.6 (4.6)	31.6 (8.9)	24.3 (15.8)	–	20.1 (9.6)	33.2 (14.7)	–
Chevillotte 201846	15	42.9	37.1 (6.3)	12.1 (6.3)	49.3 (8.1)	11.3 (10.8)	37.7 (10.4)	48.7 (7.9)
Suzuki et al., 201640	73	34.4 (8.1)	36.4 (7.2)	10.3 (7.3)	–	19.0 (9.7)	27.6 (10.5)	–
Suzuki et al., 201640	107	67.6 (8.3)	32.6 (8.6)	15.3 (7.3)	–	21.2 (10.9)	27.5 (10.9)	–
Lee et al., 201437	10	25.4 (2.3)	–	8 (2.2)	45 (7.1)	–	40.3 (10.9)	–
Lee et al., 201437	10	66.7 (1.7)	–	11.4 (7.2)	50.1 (9.3)	–	37.3 (9.1)	–
Endo et al., 201236	50	31.5 (7.4)	37.2 (7.1)	8.6 (5.5)	46.3 (8.5)	18.5 (10.9)	30.9 (10)	45.7 (8.2)
Weighted Average (mean [95% CI])			34.3 [32.9; 35.7]	14.0 [11.0; 17.0]	47.2 [46.3; 48.0]	19.5 [16.9; 21.9]	33.9 [27.4; 40.5]	47.3[43.7; 50.9]