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. 2016 Aug 4;52(4):1387–1408. doi: 10.1111/1475-6773.12538

Table 3.

Differences‐in‐Differences: Quality Regression Results

Outcomes Arizona New York Wisconsin
Year 1 Year 2 Year 3 Year 1 Year 2 Year 3 Year 1 Year 2 Year 3
Deficiencies, count 0.55 (2.46) −0.05 (1.05) −0.14 (0.70) −0.57 (0.84) 0.30 (0.38) −0.21 (0.30) 1.87 (1.22) 0.94 (0.57) 0.89a (0.45)
Deficiencies, severity‐adjusted score 4.21 (23.04) −3.57 (9.18) −1.84 (5.99) 1.97 (17.15) −2.89 (5.50) −3.80 (4.79) 28.64 (15.06) 14.45a (6.68) 12.01a (5.41)
RN hours/resident day −0.023 (0.074) 0.014 (0.04) 0.007 (0.027) −0.018 (0.043) −0.014 (0.023) −0.009 (0.015) −0.010 (0.082) 0.014 (0.036) 0.012 (0.024)
LPN hours/resident day −0.17 (0.11) −0.035 (0.065) −0.023 (0.043) 0.023 (0.056) 0.026 (0.028) 0.018 (0.018) −0.078 (0.066) −0.038 (0.033) −0.026 (0.022)
Nurse aide hours/resident day −0.10 (0.22) −0.002 (0.134) −0.002 (0.090) −0.038 (0.106) −0.022 (0.051) −0.014 (0.034) −0.011 (0.132) 0.028 (0.072) 0.021 (0.048)
Long‐stay ADL worsening −0.006 (0.021) −0.011 (0.012) −0.004 (0.009) −0.010 (0.013) −0.009 (0.007) −0.006 (0.004) −0.022 (0.013) −0.0001 (0.0075) −0.006 (0.005)
Long‐stay pressure ulcers, high risk −0.018 (0.027) −0.014 (0.013) −0.010 (0.009) 0.006 (0.011) 0.0015 (0.0059) −0.001 (0.003) 0.007 (0.012) 0.005 (0.006) 0.0001 (0.0037)
Long‐stay catheters 0.016 (0.018) 0.006 (0.008) 0.007 (0.006) 0.002 (0.007) 0.0006 (0.0032) 0.001 (0.002) −0.006 (0.009) 0.0005 (0.0043) −0.0003 (0.0028)
Long‐stay restraints −0.0063 (0.0100) −0.004 (0.005) −0.002 (0.003) −0.001 (0.007) −0.0017 (0.0032) 0.0005 (0.0021) 0.0020 (0.0047) 0.0026 (0.0023) 0.0017 (0.0017)
Short‐stay failure to improve incontinence 0.023 (0.052) −0.009 (0.026) −0.033 (0.017) 0.029 (0.033) 0.016 (0.016) 0.013 (0.011) −0.022 (0.038) −0.019 (0.021) −0.015 (0.013)
Short‐stay ADL improvement −0.052 (0.044) −0.024 (0.025) 0.009 (0.015) 0.014 (0.031) −0.011 (0.017) −0.010 (0.010) −0.018 (0.035) −0.014 (0.016) 0.002 (0.011)
Short‐stay mid‐loss ADL improvement 0.013 (0.042) −0.006 (0.023) 0.008 (0.015) 0.024 (0.029) −0.004 (0.015) −0.0006 (0.0099) 0.011 (0.031) 0.012 (0.017) −0.00004 (0.0108)
Long‐stay avoidable hospitalization rate −0.020 (0.037) −0.0011 (0.018) 0.0092 (0.017) 0.0006 (0.0094) −0.000002 (0.0176) −0.0040 (0.0080)
Short‐stay avoidable hospitalization rate −0.005 (0.020) −0.0098 (0.010) 0.0144 (0.0179) 0.009 (0.009) 0.0169 (0.0175) −0.0018 (0.0081)
N 158 302 244

Standard errors are presented in parentheses. ADL, activity of daily living.

a

Statistically significant at 5% level. All regressions include the variables listed in the upper panel of Table 1.