Table 6.

Subgroup Analysis of Surgical Procedure.

	THA	HA	P-value	Mean Difference (95% CI)
Overall	74 (44%)	94 (56%)
Gender			P = .18a
Male	26 (35.1%)	24 (25.5%)
Female	48 (64.9%)	70 (74.5%)
Age	72.0 (7.0)	77.7 (8.6)	P = .00b	−5.76 (−8.18, −3.35)
Age group			P = .00a
60-69 years	27 (60.0%)	18 (40.0%)
70-79 years	35 (53.8%)	30 (46.2%)
80-89 years	12 (23.5%)	39 (76.5%)
90-99 years	0 (.0%)	7 (100.0%)
ASA status			P = .21a
1	10 (58.8%)	7 (41.2%)
2	38 (38.4%)	61 (61.6%)
3	26 (50.0%)	26 (50.0%)
Fracture presentation		P = .08a
Acute	63 (85.1%)	87 (92.6%)
Chronic	11 (14.9%)	7 (7.4%)
Mode of anaesthesia		P = .00a
General anaesthesia	64 (86.5%)	48 (51.1%)
Regional anaesthesia	10 (13.5%)	46 (48.9%)
Non-hip complications		P = .13c
None	54 (73.0%)	56 (59.6%)
1	18 (24.3%)	28 (29.8%)
2 or more	2 (2.7%)	10 (10.6%)
Hip complications			P = 1.00a
None	69 (93.2%)	88 (93.6%)
1 or more	5 (6.8%)	6 (6.4%)
Time to surgery (days)	20.3 (1.4)	19.5 (1.3)	P = .00b	.79 (.34, 1.24)
Length of stay (days)	18.4 (9.4)	15.8 (8.2)	P = .09b	2.57 (−.14, 5.55)
Duration of surgery (mins)	137.3 (20.9)	99.3 (26.5)	P = .00b	37.97 (29.78, 46.16)
EBL (ml)	575.6 (229.9)	451.1 (224.2)	P = .02b	124.48 (14.93, 234.02)
WOMAC physical function	9.1 (13.8)	13.8 (12.9)	P = .09b	−4.66 (−10.08, .76)

Values for age, time to surgery, length of stay, duration of surgery and EBL are presented as mean (SD). Chronic fractures are defined as those that presented after 3 weeks. ASA: American Society of Anesthesiologists. THA: total hip arthroplasty. HA: hemiarthroplasty. EBL: Estimated blood loss.

^aP-value determined by Pearson’s chi-square test.

^bP-value determined by independent samples t-test.

^cP-value determined by Fisher’s exact test.