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. Author manuscript; available in PMC: 2020 Aug 1.
Published in final edited form as: J Am Med Dir Assoc. 2019 Feb 7;20(8):1007–1012.e2. doi: 10.1016/j.jamda.2018.12.017

Table 3.

Association between Nursing Home Clinician Specialization and Regional Performance on Nursing Home Quality Measures

Quality Measures
HRR-level Variables Use of anti-psychotic medications (long-term) Use of anti-psychotic medications (short-term) Use of restraints Use of indwelling urinary catheters Residents with a urinary tract infection Residents with symptoms of depression
NH specialists per 1,000 beds −0.061 (−0.136 to 0.014) −0.017* (−0.033 to −0.001) 0.004 (−0.014 to 0.022) −0.018* (−0.034 to −0.001) −0.022 (−0.049 to 0.005) 0.114* (0.028 to 0.200)
Percent of NHs part of chain 0.007 (−0.004 to 0.019) −0.002 (−0.004 to 0.003) −0.006* (−0.009 to −0.003) −0.004* (−0.007 to −0.002) 0.002 (−0.185 to 0.666) −0.030* (−0.043 to −0.017)
Percent of NHs that are for-profit 0.002 (−0.011 to 0.016) 0.000 (−0.003 to 0.003) −0.000 (−0.003 to 0.003) 0.008* (0.005 to 0.011) 0.001 (−0.005 to 0.005) −0.040* (−0.056 to −0.024)
Percent of stays covered by Medicaid −0.023 (−0.057 to 0.010) −0.001 (−0.008 to 0.006) 0.022* (0.014 to 0.030) −0.034* (−0.041 to −0.027) −0.034* (−0.046 to −0.022) −0.041* (−0.079 to −0.003)
Percent of stays covered by Medicare −0.062* (−0.119 to −0.005) 0.010 (−0.001 to 0.022) 0.014 (0.000 to 0.028) −0.023* (−0.035 to −0.010) −0.017 (−0.038 to 0.004) 0.018 (−0.048 to 0.083)
Average patient age in years −0.717* (−0.827 to −0.606) −0.053* (−0.076 to −0.030) −0.039* (−0.065 to −0.012) −0.042* (−0.067 to −0.018) −0.063* (−0.104 to −0.023) −0.651* (−0.779 to −0.523)
Percent of patients who are white 0.062* (0.042 to 0.082) −0.002 (−0.006 to 0.002) 0.006* (0.001 to 0.011) 0.014* (0.010 to 0.019) 0.027* (0.020 to 0.034) 0.059* (0.036 to 0.082)
Percent of patients who are female −0.091* (−0.169 to −0.012) 0.010 (−0.007 to 0.026) 0.041* (0.022 to 0.060) −0.010 (−0.028 to 0.007) 0.084* (0.055 to 0.113) −0.083 (−0.174 to 0.008)
RN to total staffing ratio −0.081* (−0.098 to −0.065) −0.020* (−0.024 to −0.017) −0.008* (−0.012 to −0.004) 0.003 (−0.000 to 0.007) −0.018* (−0.024 to −0.012) 0.083* (0.064 to 0.102)
Direct care staff hours per patient day −3.477* (−4.115 to −2.839) −0.737* (−0.870 to −0.604) 0.206* (0.052 to 0.359) 0.016 (−0.125 to 0.158) −0.302* (−0.535 to −0.069) −4.861* (−5.595 to −4.127)
Percent of NHs with APPs (e.g., NPs) 0.015* (0.003 to 0.027) 0.005* (0.002 to 0.007) 0.002 (−0.001 to 0.005) −0.008* (−0.011 to −0.005) 0.004 (−0.001 to 0.008) 0.005 (−0.008 to 0.019)
Average patient acuity index −0.465* (−0.908 to −0.023) 0.096* (0.003 to 0.188) 0.248* (0.141 to 0.354) 0.016 (−0.083 to 0.011) 0.437* (0.275 to 0.599) −0.124 (−0.633 to 0.385)
Herfindahl-Hirschman Index of NHs in HRR 1.242 (−4.628 to 7.111) −0.674 (−1.896 to 0.548) 2.153* (0.739 to 3.567) 1.940* (0.639 to 3.241) 0.849 (−1.298 to 2.997) −2.500 (−9.256 to 4.256)
Year: 2014 −1.756* (−2.269 to −1.242) −0.200* (−0.307 to −0.094) −0.451* (−0.575 to −0.328) −0.368* (−0.482 to −0.254) −0.769* (−0.957 to −0.581) −0.280 (−0.871 to 0.310)
Year: 2015 −2.937* (−3.462 to −2.412) −0.331* (−0.440 to −0.221) −0.713* (−0.839 to −0.586) −0.376* (−0.492 to −0.259) −1.197* (−1.389 to −1.005) −0.829* (−1.433 to −0.225)
Year: 2016 −4.832* (−5.373 to −4.291) −0.516* (−0.629 to −0.404) −0.940* (−1.070 to −0.810) −0.704* (−0.824 to −0.584) −1.983* (−2.181 to 1.785) −1.314* (−1.936 to −0.691)
*

p-value < 0.05

Abbreviations: HHR – Hospital Referral Region, NH – Nursing Home