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. 2023 Apr 7;325:115894. doi: 10.1016/j.socscimed.2023.115894

Table 4.

ZINB regression model results with total resident deaths as the outcome variable.

Variable Estimate 95% CI IRR/OR P-Value
Negative binomial model:
(Intercept) 0.184 (-0.137, 0.506) 1.202 0.26
Total Resident Cases 0.011 (0.010, 0.011) 1.011 <0.001
Total Staff Cases 0.003 (0.002, 0.004) 1.003 <0.001
Total Staff Deaths 0.071 (0.050, 0.092) 1.074 <0.001
Total Beds 0.002 (0.001, 0.003) 1.002 <0.001
% Residents Vaccinated −0.002 (-0.004, −0.001) 0.998 <0.001
% Staff Vaccinated 0.0004 (-0.0006, 0.001) 1.000 0.433
Average Residents Per Day −0.003 (-0.004, −0.002) 0.997 <0.001
% Admissions from Acute Care Hospital −0.006 (-0.008, −0.005) 0.994 <0.001
Average Age of Residents 0.0253 (0.021, 0.029) 1.026 <0.001
% Hospitalizations Per Resident Year 0.066 (0.038, 0.093) 1.068 <0.001
ADL Score 0.029 (0.020, 0.038) 1.029 <0.001
% Female Residents −0.003 (-0.005, −0.001) 0.997 <0.001
% Patient Days Private Pay −0.001 (-0.003, −0.0003) 0.999 0.012
Adjusted Nurse Staffing Hours PRPR −0.065 (-0.087, −0.042) 0.937 <0.001
Number of Fines 0.015 (0.007, 0.023) 1.015 <0.001
Number of Incidents 0.001 (-0.002, 0.006) 1.001 0.403
Number of Complaints 0.003 (0.001, 0.005) 1.003 <0.001
Number of Citations −0.0001 (-0.0067, 0.0064) 1.000 0.964
Overall Rating: 1-Star Reference
Overall Rating: 2-Stars 0.042 (-0.003, 0.087) 1.043 0.069
Overall Rating: 3-Stars 0.047 (-0.001, 0.096) 1.048 0.057
Overall Rating: 4-Stars 0.016 (-0.033, 0.067) 1.016 0.519
Overall Rating: 5-Stars −0.005 (-0.061, 0.049) 0.995 0.837
Ownership Type: For Profit Reference
Ownership Type: Government −0.022 (-0.091, 0.046) 0.978 0.516
Ownership Type: Non-Profit −0.009 (-0.048, 0.030) 0.991 0.65
Majority White Residents Reference
Majority Black Residents −0.054 (-0.122, 0.014) 0.947 0.12
Majority Hispanic Residents 0.315 (0.131, 0.498) 1.370 <0.001
Other Race/Ethnicity Residents 0.063 (-0.0003, 0.128) 1.065 0.051
Metropolitan Census Tract Reference
Micropolitan Census Tract 0.015 (-0.026, 0.057) 1.015 0.474
Rural Census Tract −0.06 (-0.1039, −0.016) 0.942 <0.001
State: PA Reference
State: AL −0.194 (-0.319, −0.069) 0.824 0.002
State: AR −0.137 (-0.264, −0.01) 0.872 0.034
State: AZ −0.164 (-0.318, −0.01) 0.849 0.036
State: CA −0.382 (-0.470, −0.294) 0.682 <0.001
State: CO 0.039 (-0.099, 0.177) 1.040 0.579
State: CT 0.134 (0.012, 0.256) 1.143 0.03
State: DE −0.083 (-0.329, 0.161) 0.920 0.502
State: FL −0.509 (-0.598, −0.42) 0.601 <0.001
State: GA −0.202 (-0.305, −0.098) 0.817 <0.001
State: IA −0.148 (-0.258, −0.038) 0.862 0.008
State: ID −0.479 (-0.721, −0.236) 0.619 <0.001
State: IL −0.187 (-0.273, −0.101) 0.829 <0.001
State: IN −0.055 (-0.149, 0.038) 0.946 0.248
State: KS −0.162 (-0.286, −0.038) 0.850 0.01
State: KY −0.243 (-0.354, −0.131) 0.784 <0.001
State: LA −0.014 (-0.128, 0.098) 0.986 0.795
State: MA 0.177 (0.077, 0.277) 1.194 <0.001
State: MD −0.17 (-0.293, −0.048) 0.844 0.006
State: ME −0.231 (-0.448, −0.014) 0.794 0.036
State: MI −0.042 (-0.15, 0.066) 0.959 0.443
State: MN −0.083 (-0.2, 0.033) 0.920 0.164
State: MO −0.285 (-0.385, −0.184) 0.752 <0.001
State: MS −0.133 (-0.266, −0.0007) 0.875 0.048
State: MT −0.011 (-0.257, 0.234) 0.989 0.92
State: NC −0.186 (-0.283, −0.088) 0.830 <0.001
State: ND −0.103 (-0.314, 0.108) 0.902 0.34
State: NE −0.307 (-0.461, −0.153) 0.736 <0.001
State: NH −0.112 (-0.316, 0.092) 0.894 0.282
State: NJ 0.06 (-0.041, 0.162) 1.062 0.248
State: NM −0.536 (-0.795, −0.277) 0.585 <0.001
State: NV −0.314 (-0.553, −0.076) 0.731 0.009
State: NY −0.133 (-0.224, −0.042) 0.875 0.003
State: OH −0.19 (-0.271, −0.110) 0.827 <0.001
State: OK −0.139 (-0.262, −0.016) 0.870 0.026
State: OR 0.058 (-0.138, 0.254) 1.060 0.56
State: RI −0.083 (-0.27, 0.103) 0.920 0.381
State: SC −0.253 (-0.386, −0.12) 0.776 <0.001
State: SD 0.024 (-0.168, 0.216) 1.024 0.805
State: TN −0.22 (-0.326, −0.114) 0.803 <0.001
State: TX −0.388 (-0.474, −0.303) 0.678 <0.001
State: UT −0.14 (-0.356, 0.075) 0.869 0.02
State: VA −0.219 (-0.335, −0.103) 0.803 <0.001
State: VT −0.25 (-0.662, 0.161) 0.779 0.233
State: WA −0.141 (-0.282, −0.001) 0.868 0.048
State: WI −0.327 (-0.437, −0.217) 0.721 <0.001
State: WV −0.275 (-0.433, −0.118) 0.760 <0.001
State: WY −0.213 (-0.55, 0.123) 0.808 0.213
Logistic model:
Total Resident Cases −0.176 (-0.201, −0.151) 0.839 <0.001
Total Staff Cases −0.013 (-0.021, −0.005) 0.987 0.001
Total Staff Deaths 0.123 (-0.121, 0.368) 1.131 0.322

IRR=Incidence Rate Ratio; OR=Odds Ratio; ADL = Activities of Daily Living, PRPR=Per Resident Per Day.