On the one hand, it makes total sense to me that childhood antibiotics could mess up your digestive tract immune system. On the other hand:
"Subgroup analysis showed that antibiotic use <18 years old was a risk factor for CD development in the Chinese (adjusted OR 4.80, 95% CI 1.62–12.24; P = 0.005) but not in Australian populations (OR 1.80, 95% CI 0.33–9.95; P = 0.498)."
If it were a robust finding, it would not fall apart on subgroup analysis.
"Subgroup analysis showed that antibiotic use <18 years old was a risk factor for CD development in the Chinese (adjusted OR 4.80, 95% CI 1.62–12.24; P = 0.005) but not in Australian populations (OR 1.80, 95% CI 0.33–9.95; P = 0.498)."
If it were a robust finding, it would not fall apart on subgroup analysis.