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Frequency of comorbid conditions at baseline for males and females, with several comorbidities presenting with a sex imbalance. A, *P < .05 and **P < .001, by chi-square. Distribution of BMI categories (B), alcohol use (C), and smoking status (D) by sex and age. Overall chi-square for (B), (C), and (D): P < .001. Abbreviations: BMI, body mass index; CHF, congestive heart failure; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; DM, diabetes mellitus.
