Antibiotic use but not gastrointestinal infection frequently precedes first diagnosis of functional gastrointestinal disorders.

There was an increasing trend in whether antibiotics had ever been prescribed with increasing deprivation score (Table 2 ; p < 0.001) which was not moderated by patient group ( p = 0.3).

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While there was some variation across patient groups, it was by subtle degree (0.3% in FC to 0.9% in the multiple FGID group) and failed to reach statistical significance ( p = 0.2) and as also unaffected by controlling for age, gender and social deprivation ( p = 0.4).

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