ALB and cystic fibrosis: Individuals who had a thinner calf circumference, higher total body fat, lower albumin, and lower vitamin D showed an increased CF prevalence (OR 0.748, 95% CI 0.625–0.895; OR 1.04, 95% CI 1.01–1.07; OR 0.45, 95% CI 0.34–0.59; OR 0.362, 95% CI 0.141–0.930; respectively).