Table 1.
Descriptive Statistics of Sample
| Variable | N (%) |
|---|---|
| Nurses, N = 1,203 | |
| Age | |
| Mean (SD) | 35.69 (10.93) |
| Education | |
| Diploma | 100 (8.3) |
| Associate's degree | 200 (16.6) |
| Bachelor's degree | 611 (50.1) |
| Master's/doctoral degree | 46 (3.8) |
| Unknown | 246 (20.4) |
| Expertise level | |
| CN1 | 294 (29.3) |
| CN2 | 600 (49.9) |
| CN3 | 183 (18.2) |
| CN4 | 33 (2.7) |
| Unknown | 93 (7.7) |
| Tenure at the hospital | |
| Mean (SD) | 6.20 (8.1) |
| Patients, N = 7,318 | |
| Age | |
| Mean (SD) | 55.66 (19.32) |
| Sex | |
| Male | 3,699 (50.5) |
| Female | 3,619 (49.5) |
| Insurance type | |
| Medicare | 2,592 (35.4) |
| Medicaid | 1,692 (23.0) |
| Blue cross/commercial | 2,786 (38.1) |
| Other/uninsured | 248 (3.4) |
| Service type | |
| Medical | 4,348 (59.4) |
| Surgical | 2,970 (40.6) |
| Hospitalization within 30 days prior to admission | |
| No | 6,319 (86.3) |
| Yes | 999 (13.7) |
| Rothman index (RI) at admission | |
| Mean (SD) | 75.78 (18.12) |
| RI at discharge | |
| Mean (SD) | 78.59 (17.24) |
| RI change | |
| Mean (SD) | 2.81 (14.88) |
| Patient died during hospitalization | |
| No | 7,216 (98.6) |
| Yes | 102 (1.39) |
| Patient readmitted within 30 days | |
| No | 6,170 (84.3) |
| Yes | 1,148 (15.7) |
| Length of stay, days | |
| Mean (SD)/median/retransformed mean* | 5.54 (7.57)/3/3.48 |
| Total cost of hospitalization, $ | |
| Mean (SD)/median/retransformed mean* | 20,203.48 (30,381.84)/10,949.25/11,887.67 |
*
Retransformed smearing-adjusted mean of the log-transformed variable.