Skip to main content
. 2009 Feb;44(1):56–78. doi: 10.1111/j.1475-6773.2008.00906.x

Table 2.

Summary Statistics by Staffing Status, 1998–2001

Full Sample
Low-Staff
No (=0) Yes (=1)
Variables Mean Range SD Mean Mean t-Test
Staffing hours per resident day
RN HPRD 0.34 (0, 10.23) 0.32 0.42 0.26 ***
LPN HPRD 0.65 (0, 9.64) 0.38 0.71 0.60 ***
NA HPRD 1.94 (0, 10.65) 0.68 2.20 1.66 ***
Total HPRD 2.93 (0.5, 11.98) 0.95 3.33 2.51 ***
Quality of care
% Pressure sores 6.47 (0, 100) 4.77 6.38 6.57 ***
% Contractures 25.72 (0, 100) 20.47 27.98 23.38 ***
% Incontinence 54.50 (0, 100) 15.91 56.33 52.61 ***
% Catheter use 6.05 (0, 100) 4.91 6.07 6.04
% Restraint use 11.87 (0, 100) 13.02 11.34 12.43 ***
Total deficiencies 5.91 (0, 50) 5.88 5.16 6.68 ***
Policy: staffing standards
Transition effect 0.101 0.301 0.083 0.119 ***
Steady-state effect 0.103 0.304 0.070 0.136 ***
Facility
Ownership
For-profit 0.73 0.44 0.64 0.82 ***
Nonprofit 0.23 0.42 0.30 0.15 ***
Government 0.04 0.21 0.06 0.03 ***
Chain 0.58 0.49 0.53 0.63 ***
Payer mix
% Residents paid by Medicare 7.48 (0, 100) 8.68 8.37 6.56 ***
% Residents paid by Medicaid 67.89 (0, 100) 19.82 65.58 70.28 ***
% Residents paid by others 24.63 (0, 100) 18.78 26.06 23.16 ***
Total beds 114.82 (5, 1231) 65.98 118.57 110.95 ***
Occupancy rate 84.63 (1.56, 100) 15.28 85.29 83.95 ***
Case mix
Acuity index 10.08 (3, 21.70) 1.54 10.28 9.86 ***
% Pressure sores on admission 3.10 (0, 100) 4.17 3.105 3.102
% Contractures on admission 16.21 (0, 100) 17.13 17.88 14.49 ***
% Catheter use on admission 4.24 (0, 93.02) 4.30 4.24 4.23
% Restraint use on admission 3.82 (0, 100) 8.17 3.46 4.19 ***
Low-staff 0.49 0.50 0 1
Market
Herfindahl–Hirschman index 0.196 (0.004, 1) 0.228 0.190 0.203 ***
Empty beds per 1,000 elderly (65+) 13.08 (0, 173.91) 13.06 11.28 14.93 ***
Per capita income (in $1,000s) 26.87 (0, 92.98) 7.62 27.59 26.13 ***
Unemployment rate (16+) 4.51 (0.70, 29.90) 2.10 4.42 4.61 ***
Population 85+ (in 1,000s) 9.88 (0.01, 114.98) 19.63 7.64 12.20 ***
Female population 15–44 (in 1,000s) 160.84 (0.12, 2210.65) 373.79 114.91 208.28 ***
State
Medicaid rate 108.70 (69.55, 285.01) 23.18 115.37 101.80 ***
No. of facility-year observations 55,248 28,073 27,175
No. of facilities 15,217 7,969 7,248
***

Significant at 1%.

HPRD, hours per resident day; SD, standard deviation. Mean comparison tests (t-test) by low-staff status.