Table 2.
Predictors of Hospitalization Between Case and Comparison Cohorts
| Cohorta |
||||
|---|---|---|---|---|
| Predictor | Comparison (n=160) | Case (n=160) | Total (N=320) | P value |
| Race | .10b | |||
| Non-White | 5 (3.1) | 1 (0.6) | 6 (1.9) | |
| White | 155 (96.9) | 159 (99.4) | 314 (98.1) | |
| Ethnicity | .65b | |||
| Non-Hispanic | 157 (98.1) | 158 (98.8) | 315 (98.4) | |
| Hispanic | 3 (1.9) | 2 (1.3) | 5 (1.6) | |
| Marital status | .48b | |||
| Married/partner | 59 (36.9) | 53 (33.1) | 112 (35.0) | |
| Other | 101 (63.1) | 107 (66.9) | 208 (65.0) | |
| Education level | .18b | |||
| 4-y college graduate | 6 (5.9) | 17 (14.9) | 23 (10.7) | |
| High school graduate or GED | 46 (45.5) | 40 (35.1) | 86 (40.0) | |
| Postgraduate studies | 12 (11.9) | 18 (15.8) | 30 (14.0) | |
| Some college or 2-y degree | 28 (27.7) | 28 (24.6) | 56 (26.0) | |
| Less than high school | 9 (8.9) | 11 (9.6) | 20 (9.3) | |
| Missing | 59 | 46 | 105 | |
| HOUSES quartile | .81b | |||
| 1 | 43 (46.2) | 63 (47.0) | 106 (46.7) | |
| 2 | 22 (23.7) | 35 (26.1) | 57 (25.1) | |
| 3 | 19 (20.4) | 21 (15.7) | 40 (17.6) | |
| 4 | 9 (9.7) | 15 (11.2) | 24 (10.6) | |
| Missing | 67 | 26 | 93 | |
| Charlson illness count | .04c | |||
| Mean (SD) | 4.2 (2.02) | 4.7 (2.04) | 4.4 (2.04) | |
| Median | 4 | 4.5 | 4 | |
| Range | 0.0-9.0 | 0.0-9.0 | 0.0-9.0 | |
| Dementia flag | .003b | |||
| No | 92 (57.5) | 117 (73.1) | 209 (65.3) | |
| Yes | 68 (42.5) | 43 (26.9) | 111 (34.7) | |
| Hospital LOS, d | .71c | |||
| Mean (SD) | 7.4 (3.18) | 7.7 (4.37) | 7.6 (3.82) | |
| Median | 7 | 7 | 7 | |
| Range | 2.0-20.0 | 2.0-31.0 | 2.0-31.0 | |
| Discharge clinical service | .16b | |||
| Cardiology | 12 (7.5) | 19 (11.9) | 31 (9.7) | |
| Cardiovascular surgery | 6 (3.8) | 4 (2.5) | 10 (3.1) | |
| Colon and rectal surgery | 0 (0.0) | 1 (0.6) | 1 (0.3) | |
| Family medicine | 27 (16.9) | 11 (6.9) | 38 (11.9) | |
| Gastroenterology | 1 (0.6) | 3 (1.9) | 4 (1.3) | |
| General surgery | 0 (0.0) | 1 (0.6) | 1 (0.3) | |
| Medicine service | 63 (39.4) | 73 (45.6) | 136 (42.5) | |
| Neurosurgery | 3 (1.9) | 6 (3.8) | 9 (2.8) | |
| Neurology medicine | 5 (3.1) | 7 (4.4) | 12 (3.8) | |
| Orthopedics trauma service | 14 (8.8) | 7 (4.4) | 21 (6.6) | |
| Orthopedics | 14 (8.8) | 9 (5.6) | 23 (7.2) | |
| Physical medicine | 1 (0.6) | 4 (2.5) | 5 (1.6) | |
| Pulmonary | 1 (0.6) | 2 (1.3) | 3 (0.9) | |
| Thoracic surgery | 1 (0.6) | 0 (0.0) | 1 (0.3) | |
| Trauma and critical care | 12 (7.5) | 12 (7.5) | 24 (7.5) | |
| Vascular | 0 (0.0) | 1 (0.6) | 1 (0.3) | |
Abbreviations: d, day; GED, General Educational Development; HOUSES, housing-based socioeconomic index; LOS, length of stay; y, year.
a
Values are presented as number (percentage) of patients unless specified otherwise.
b
χ2 P value.
c
Kruskal-Wallis P value.