PRAL and asthma: When assessing the association between PRAL and asthma in all samples and after categorization according to overweight status, positive and significant associations were found only in children who were overweight/obese (model 0, OR = 1.644, 95% CI = 1.020, 2.650, Table 2), and this association remained significant after adjustment for possible confounders (model 3, OR = 1.953, 95% CI = 1.024, 3.730) (Table 2).