Table 2. Characteristics of diabetic outpatients with and without anemia.
| Variables | Anemia (n = 110) | No anemia (n = 302) | P–value* |
|---|---|---|---|
| Age (years) | 51.7 ±15.8 | 42.7 ± 13.4 | P < 0.001 |
| Age (years), n (%) | P < 0.001 | ||
| 18–30 | 15 (18.3) | 67 (81.7) | |
| 31–45 | 19 (14.6) | 111 (85.4) | |
| 46–60 | 43 (31.4) | 94 (68.6) | |
| >60 | 33 (52.4) | 30 (47.6) | |
| Sex, n (%) | P < 0.001 | ||
| Male | 65 (35.5) | 118 (64.5) | |
| Female | 45 (19.7) | 184 (80.3) | |
| Education, n (%) | P = 0.978 | ||
| < High school | 65 (26.7) | 178 (73.3) | |
| ≥ High school | 45 (26.6) | 124 (73.4) | |
| Type of diabetes, n (%) | P = 0.002 | ||
| Type 1 | 20 (16.3) | 103 (83.7) | |
| Type 2 | 90 (31.1) | 199 (68.9) | |
| Duration of diabetes, n (%) | P < 0.001 | ||
| ≤ 10 years | 74 (20.6) | 286 (79.4) | |
| > 10 years | 36 (69.2) | 16 (30.8) | |
| Currently consume alcohol | P = 0.013 | ||
| Yes | 41 (35.3) | 75 (64.7) | |
| No | 69 (23.3) | 227 (76.7) | |
| Current smoker | P = 0.752 | ||
| Yes | 14 (28.6) | 35 (71.4) | |
| No | 96 (26.4) | 267 (73.6) | |
| Hypertension, n (%) | P < 0.001 | ||
| Present | 74 (65.5) | 39 (34.5) | |
| Absent | 36 (12.0) | 265 (88.0) | |
| Body mass index (kg/m2) | 22.6 ± 3.8 | 22.1 ± 2.9 | P = 0.187 |
| Systolic BP (mm Hg) | 137.1 ± 21.4 | 113.9 ± 12.8 | P < 0.001 |
| Diastolic BP (mm Hg) | 82.8 ± 11.1 | 77.7 ± 40.4 | P = 0.379 |
| Fasting blood glucose (mg/dl) | 222.1 ± 73.5 | 199.2 ± 67.4 | P = 0.003 |
| Serum creatinine (mg/dl) | 1.15 ± 0.40 | 0.96 ± 0.27 | P < 0.001 |
| eGFR (ml/min/1.73 m2) | 91.4 ± 45.1 | 103.2 ± 37.4 | P = 0.008 |
BP: blood pressure; eGFR: estimated glomerular filtration rate
*P-value calculated by chi-square test for categorical variables and student t-test for continuous variables