Research Article

Productivity Improvements in Hip and Knee Surgery

Table 2

Hip and knee surgery after matching.

HipKnee
TreatmentControlS DiffTreatmentControlS Diff

ADL limitations0.640.621.890.470.49−2.29
IADL limitations0.320.293.460.240.25−1.49
Mobility limitations1.971.960.501.941.98−2.08
Large muscle index 2.062.041.372.102.11−0.59
Fine motor index0.370.336.150.270.270.62
Gross motor index1.001.000.240.910.94−2.19
Pain0.310.34−4.540.340.331.79
Pain restrict0.260.28−4.770.280.271.79
Pain moderate0.180.20−3.330.190.190.64
Pain severe0.070.08−3.650.090.10−0.51
Age69.8869.513.9968.2068.31−1.21
Black0.080.08−0.600.130.13−0.60
Hispanic0.040.05−2.410.060.07−2.24
Other race0.010.010.000.030.02−0.96
Female0.610.603.010.660.67−2.11
Married0.660.66−0.690.660.661.48
Education 12 yrs0.350.36−0.680.360.351.57
Education 13–15 yrs0.240.231.160.210.21−2.08
Education 16+ yrs0.220.221.580.180.18−0.52
Fair/poor health0.300.292.870.350.35−0.94
Obese0.340.340.000.490.49−0.50
Earnings7.859.35−6.369.479.65−0.48
Income47.5853.56−5.4846.0246.14−0.11
Employed0.250.27−3.360.300.30−1.09
Insurance0.990.994.460.980.99−2.73
Year4.074.16−4.424.184.170.41

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