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Table 1 Regression analyses of the covariates

From: Overall assessment of antibiotic substitutes for pigs: a set of meta-analyses

Outcomes Type of feed additive Growth stage Dose
Average daily gain 0.986 0.064 0.954
Average daily feed intake 0.105 0.001 0.466
Gain: feed ratio 0.414 0.009 0.082
Villus height: crypt depth of the duodenum 0.474 0.974 0.949
Villus height: crypt depth of the jejunum 0.168 0.514 0.409
Villus height: crypt depth of the ileum 0.021 0.989 0.397
IgA 0.278 0.196 0.597
IgM 0.552 0.591 0.886
IgG 0.354 0.449 0.976
Lymphocytes 0.156 0.661 0.978
Diarrhoea rate 0.587 NA NA
Diarrhoea index 0.535 NA 0.053