Mixed effect multivariable logistic regression analysis using two separate models for intramammary infection (IMI) by any pathogen, non-aureus staphylococci or <i>Mammaliicoccus sciuri</i> regressed against buffalo and farm-level risk factors, using animal and farm as the random effects, based on bacteriological culture data from 1,374 quarters from 763 buffalo in 244 farms in nine buffalo-concentrated districts in Bangladesh.

Subject-specific odds ratios and 95% CI were calculated based on subject-specific beta estimates.