Table 1.

Patient Characteristics ^a

	Anterior (n = 158)	Posterior (n = 139)	Combined (n = 119)	X 2	P
Age at surgery, y	27.9 (18-48)	30.1 (18-50)	29.5 (18-50)	N/A	Overall: .0437 Ant vs post: .0421 Ant vs comb: NS Post vs comb: NS
Age at injury, y	25.4 (13.7-47.6)	28.3 (14-48.7)	27.6 (10-49.9)	N/A	Overall: .0038 Ant vs post: .0044 Ant vs comb: .0468 Post vs comb: NS
Follow-up, mo	90.71 ± 29.90	88.55 ± 24.20	90.21 ± 22.49	N/A	.7635
Male sex	146 (92.4)	132 (95)	116 (97.5)	3.52	.1724
Right shoulder affected	97 (61.4)	82 (59)	60 (50.4)	3.55	.1698
Dominant arm involved	102 (64.6)	90 (64.8)	63 (52.9)	4.91	.0859
History of traumatic event	129 (81.6)	95 (68.3)	73 (61.3)	Overall: 8.64 Ant vs post: 6.36 Ant vs comb: 13.16 Post vs comb: 1.38	Overall: .0133 (adjusted alpha = .0167) Ant vs post: Praw, .0117; Pcorrected, .0474 Ant vs comb: Praw, .0003; Pcorrected, .0010 Post vs comb: Praw, .2395; Pcorrected, ≥.9999
Time from symptom onset to surgery, mo	30.43 (1-240)	22.47 (1-192)	23.01 (1-96)	N/A	Overall: .0275 Ant vs post: .0430 Ant vs comb: NS Post vs comb: NS
Endorsed pain at presentation	145 (91.77)	139 (100)	119 (100)	Overall: 21.91 Ant vs post: 11.96 Ant vs comb: 10.27 Post vs comb: N/A	Overall: <.0001 (adjusted alpha = .01667) Ant vs post: Praw, .0003; Pcorrected, .0018 Ant vs comb: Praw, .0008; Pcorrected, .0048 Post vs comb: Praw, .9999; Pcorrected, .9999
Endorsed subjective instability at presentation	151 (95.57)	101 (72.66)	83 (69.74)	Overall: 37.10 Ant vs post: 30.18 Ant vs comb: 34.51 Post vs comb: 0.27	Overall: <.0001 (adjusted alpha .01667) Ant vs post: Praw, <.0001; Pcorrected, ≤.001 Ant vs comb: Praw, <.0001; Pcorrected, ≤.001 Post vs comb: Praw, .7056; Pcorrected, .9999

^aData are expressed as mean (range), mean ± SD, or No. of patients (%). Bold P values indicate statistically significant differences (P < .05). Ant, anterior; Comb, combined; N/A, not applicable; NS, not significant; Post, posterior.