Table 2 . Comparison of demographic characteristics and risk factors of 305 CHF patients according to readmission status, Tehran, 2010–1 .
| Admitted within 12 months (n=122) | Not admitted within 12 months (n=183) | P | |
| Gender | 0.084 | ||
| Male | 68 (55.74) | 120 (65.57) | |
| Female | 54 (44.26) | 63 (34.43) | |
| Age | 0.204 | ||
| <75 years | 49 (40.16) | 87 (47.54) | |
| >75 years | 73 (59.84) | 96 (52.46) | |
| Marital status | 0.011 | ||
| Married | 93 (76.23) | 160 (87.43) | |
| Single | 29 (23.77) | 23 (12.57) | |
| BMI (kg/m 2 ) | 0.365 | ||
| <25 (Normal) | 53 (43.44) | 70 (38.25) | |
| ≥25 (Overweight/Obese) | 69 (56.56) | 113 (61.75) | |
| Positive History | |||
| Cardiac interventions | 59 (48.36) | 80 (43.72) | 0.425 |
| Family history of CHD | 52 (42.62) | 67 (36.61) | 0.292 |
| Comorbidity | |||
| Dyslipidemia | 115 (94.26) | 163 (89.07) | 0.118 |
| Hypertension | 104 (85.25) | 71 (38.80) | <0.001 |
| Diabetes mellitus | 66 (54.10) | 63 (34.43) | <0.001 |
| Cigarette status | 0.006 | ||
| No smoking | 55 (45.80) | 112 (61.20) | |
| Current smoking | 67 (54.92) | 71 (38.80) | |
| Ejection fraction (<40%) | 111 (90.98) | 97 (53) | <0.001 |
| Poor adherence | |||
| Drug | 84 (68.85) | 22 (12.02) | <0.001 |
| Physical activity | 100 (81.97) | 40 (21.86) | <0.001 |
| Diet | 86 (70.49) | 131 (71.58) | 0.836 |
CHF= Congestive Heart Failure; CHD= Coronary Heart Disease