Productivity Improvements in Hip and Knee Surgery

Table 1

Hip and knee surgery before matching.

	Hip			Knee
	Treatment	Control	S Diff	Treatment	Control	S Diff
ADL limitations	0.65	0.77	−10.38	0.46	0.79	−28.85
IADL limitations	0.32	0.54	−23.39	0.24	0.55	−34.98
Mobility limitations	1.98	2.12	−8.63	1.95	2.13	−11.61
Large muscle index	2.07	2.31	−18.23	2.10	2.31	−16.42
Fine motor index	0.37	0.44	−10.05	0.27	0.45	−26.33
Gross motor index	1.01	1.19	−12.37	0.91	1.20	−21.23
Pain	0.32	0.35	−6.73	0.35	0.35	−1.12
Pain restrict	0.27	0.31	−9.66	0.28	0.31	−6.43
Pain moderate	0.19	0.19	0.47	0.19	0.19	1.20
Pain severe	0.07	0.11	−11.76	0.09	0.11	−4.06
Age	69.82	68.70	12.03	68.19	68.87	−7.14
Black	0.08	0.22	−38.25	0.13	0.21	−23.65
Hispanic	0.04	0.10	−23.63	0.06	0.10	−14.70
Other race	0.01	0.05	−20.98	0.03	0.05	−12.28
Female	0.61	0.70	−17.71	0.66	0.70	−8.14
Married	0.66	0.54	23.92	0.66	0.54	25.14
Education 12 yrs	0.36	0.31	10.10	0.36	0.31	9.93
Education 13–15 yrs	0.24	0.17	16.70	0.21	0.17	9.65
Education 16+ yrs	0.22	0.13	24.77	0.18	0.13	14.88
Fair/poor health	0.30	0.55	−51.31	0.35	0.55	−41.85
Obese	0.33	0.37	−7.95	0.49	0.37	24.20
Earnings	7.80	6.06	6.97	9.48	6.01	13.77
Income	47.60	33.04	20.20	45.81	32.82	17.61
Employed	0.25	0.22	7.07	0.30	0.22	18.47
Insurance	0.99	0.95	23.99	0.98	0.95	18.23
Year	4.08	3.90	8.72	4.17	3.91	13.41
𝑁	622	9,841		2038	10007