Can Early Rehabilitation after Total Hip Arthroplasty Reduce Its Major Complications and Medical Expenses? Report from a Nationally Representative Cohort

Table 1

Descriptive statistics among patients receiving total hip arthroplasty.

	Variables
	Before propensity score			After propensity score
	Early RG	Delayed RG	value	Early RG	Delayed RG	value
Total, (%)	999 (81.09)	233 (18.91)		820 (80.00)	205 (20.00)
Gender, (%)
Female	434 (43.44)	106 (45.49)	0.5701	355 (43.29)	94 (45.85)	0.5086
Male	565 (56.56)	127 (54.51)		465 (56.71)	111 (54.15)
Age, mean ± SD	56.48 ± 14.71	59.80 ± 14.63	0.0019	56.19 ± 13.63	57.48 ± 13.83	0.2270
Age group
<65	681 (68.17)	136 (58.37)	0.0044	583 (71.10)	134 (65.37)	0.1094
≧65	318 (31.83)	97 (41.63)		237 (28.90)	71 (64.63)
Length of stay, mean ± SD	8.66 ± 5.53	8.70 ± 5.30	0.9152	8.52 ± 5.17	8.64 ± 5.37	0.7644
OPD visits, mean ± SD	28.75 ± 21.55	41.49 ± 29.20	<0.0001	28.54 ± 21.67	39.20 ± 27.70	<0.0001
Total medical expenses; (USD/year), mean ± SD	77002 ± 151086	123911 ± 189473	0.0005	70788 ± 128596	119293 ± 194903	0.0008
Total rehabilitation expenses; (USD/year), mean ± SD	2630 ± 9490.3	11002 ± 19588.5	<0.0001	2794 ± 10013	10278 ± 17701	<0.0001
CCS, mean ± SD	0.71 ± 1.35	0.88 ± 1.39	0.0915	0.60 ± 1.15	0.67 ± 1.09	0.4257
E code patients, (%)	49 (4.90)	13 (5.58)	0.6715	35 (4.27)	10 (4.88)	0.7031
Complications
PI, (%)	14 (1.40)	10 (4.29)	0.0040	11 (1.34)	8 (3.90)	0.0150
DVT, (%)	5 (0.50)	2 (0.86)	0.5128^a	5 (0.61)	2 (0.98)	0.5694^a
RHA, (%)	13 (1.30)	8 (3.43)	0.0236	10 (1.22)	6 (2.93)	0.0778
OA, (%)	530 (53.05)	134 (57.51)	0.2190	440 (53.66)	113 (55.12)	0.7069
AN, (%)	467 (46.75)	98 (42.06)	0.1961	391 (47.68)	92 (44.88)	0.4718
HTN, (%)	239 (23.92)	74 (31.76)	0.0134	163 (19.88)	48 (23.41)	0.2626
DM, (%)	84 (8.41)	20 (8.58)	0.9309	73 (8.90)	20 (9.76)	0.7035
PRF, (%)	19 (1.90)	3 (1.29)	0.7832^a	14 (1.71)	3 (1.46)	0.8068

Note. ^aFisher’s exact test. RG: rehabilitation group; OPD: outpatient department; CCS: Charlson Comorbidity Scores; PI: prosthetic infection; DVT: deep vein thrombosis; RHA: revision of hip arthroplasty; OA: osteoarthritis; AN: avascular necrosis; HTN: hypertension; DM: diabetes mellitus; PRF: poor renal function.