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Table 1 Comparison among training population and patients excluded from the analysis because of missing data

From: Identifying older diabetic patients at risk of poor glycemic control

  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
  1. Data are means ± SD or number of cases with percent in parentheses.