LACTB and type 1 diabetes mellitus: A positive significant correlation was estimated between the consumption of tetracycline (J01A) and the prevalence of T1D (Pearson’s r = 0.58, p = 0.001), similarly to the consumption of narrow-spectrum, beta-lactamase-sensitive penicillin (J01CE; Pearson’s r = 0.488, p = 0.006) and narrow-spectrum, beta-lactamase-resistant penicillin (J01CF; Pearson’s r = 0.43, p = 0.018) and the prevalence of T1D.