TABLE 1.
Study Population of General Medical and Surgical Inpatients at Their First Admission, Comparing Patients under Contact Precautions (CP) with Those Not under CP
| Non-CP (n = 50,458) | CP (n = 9,684) | P | |
|---|---|---|---|
| Age, mean ± SD, years | 50.1 ± 18.8 | 52.3 ± 16.9 | <.01 |
| Male | 51.4 (25,893) | 59.1 (5,722) | <.01 |
| LOS, median (IQR), days | 2.8 (4.6) | 7.1 (15.3) | <.01 |
| CCI, median (IQR) | 1.00 (2.00) | 2.00 (3.00) | <.01 |
| AIDS | 1.5 (731) | 5.7 (558) | <.01 |
| Chronic pulmonary disease | 15.1 (7,600) | 18.0 (1,739) | <.01 |
| Diabetes | 16.1 (8,076) | 21.9 (2,118) | <.01 |
| Complications of diabetes | 2.2 (1,120) | 4.9 (475) | <.01 |
| Cerebrovascular disease | 7.6 (3,838) | 8.2 (791) | .05 |
| Heart failure | 7.4 (3,713) | 13.1 (1,265) | <.01 |
| Hemi- or paraplegia | 1.4 (711) | 4.9 (473) | <.01 |
| Malignancy | 8.8 (4,416) | 12.0 (1,164) | <.01 |
| Metastatic tumor | 3.2 (1,647) | 3.1 (300) | .40 |
| Mild liver disease | 1.4 (686) | 3.3 (320) | <.01 |
| Myocardial infarction | 6.9 (3,484) | 6.7 (647) | .44 |
| Peptic ulcer disease | 1.1 (535) | 1.6 (159) | <.01 |
| Peripheral vascular disease | 3.4 (1,689) | 4.9 (474) | <.01 |
| Renal disease | 8.0 (4,058) | 18.9 (1,831) | <.01 |
| Severe liver disease | 0.8 (416) | 2.7 (261) | <.01 |
| Rheumatologic | 1.8 (933) | 1.8 (178) | .95 |
| Intensive care unit | 14.3 (7,239) | 27.2 (2,630) | <.01 |
| Death in hospital | 2.4 (1,217) | 6.6 (635) | <.01 |
NOTE. Data are % (no.), unless otherwise indicated. CCI, Charlson comorbidity index; IQR, interquartile range; LOS, length of stay; SD, standard deviation.