Table 1.
Comparison among training population and patients excluded from the analysis because of missing data
| Training population (N = 1354) |
Patients excluded (N = 479) |
t | P | |
| Age (yrs) | 77.0 ± 6.7 | 77.9 ± 7.2 | -2.524 | 0.012 |
| Gender (males) | 577 (42.6) | 209 (43.6) | 0.699 | |
| BMI (kg/m2) | 26.3 ± 4.8 | 25.6 ± 4.6 | 2.495 | 0.013 |
| Systolic blood pressure (mmHg) | 149 ± 26 | 149 ± 25 | -0.038 | 0.969 |
| Diastolic blood pressure (mmHg) | 82 ± 14 | 82 ± 13 | 0.591 | 0.555 |
| Education (yrs) | 5.4 ± 3.3 | 5.0 ± 2.9 | 2.377 | 0.018 |
| Type of ward | 0.023 | |||
| Geriatrics | 961 (71.0) | 343 (71.6) | ||
| Medicine | 366 (27.0) | 135 (28.2) | ||
| Others | 27 (2.0) | 1 (0.2) | ||
| Charlson | 2.5 ± 1.8 | 2.5 ± 1.6 | 0.878 | 0.380 |
| AMT | 6.9 ± 3.0 | 6.9 ± 3.1 | 0.308 | 0.758 |
| ADL | 0.821 | |||
| Independent | 661 (48.8) | 234 (48.9) | ||
| Assistance | 292 (21.6) | 98 (20.5) | ||
| Dependent | 390 (28.8) | 144 (30.1) | ||
| Hypoglycemic therapy prior to admission | 0.002 | |||
| Diet alone | 659 (48.7) | 263 (54.9) | ||
| Oral agents alone | 444 (32.8) | 160 (33.4) | ||
| Insulin alone | 213 (15.7) | 42 (8.8) | ||
| Oral agents and insulin | 38 (2.8) | 14 (2.9) | ||
| Plasma glucose (mg/dl) | 198 ± 102 | 159 ± 78 | 7.459 | 0.001 |
| Cholesterol (mg/dl) | 189 ± 53 | 184 ± 51 | 1.658 | 0.098 |
| Triglycerides (mg/dl) | 162 ± 108 | 149 ± 98 | 2.020 | 0.044 |
| White blood cells (cells/mm3) | 8576 ± 4337 | 8564 ± 6100 | 0.044 | 0.965 |
| Serum sodium (mEq/l) | 139 ± 4.5 | 139 ± 4.3 | -0.354 | 0.723 |
| Serum potassium (mEq/l) | 4.3 ± 0.6 | 4.3 ± 0.6 | 2.275 | 0.023 |
Data are means ± SD or number of cases with percent in parentheses.