Conditional logistic regression shows that the OR of having previously received an IDA diagnosis among cases was 1.49 ( 95 % CI : 1.39 ~ 1.60 ; p < 0.01 ) that of controls after adjusting for monthly income , geographic region , hypertension , diabetes , coronary heart disease , atrial fibrillation , heart failure , hyperlipidemia , tobacco use disorder , and alcohol abuse/alcohol dependency syndrome .