Supplementary table for Ong et al. Scalp and nail involvement in dermatomyositis: associations with myositis-specific antibodies, malignancy, and interstitial lung disease in a retrospective cohort st
aCochrane-Mantel-Haenzel test.bAdjusted by age, sex, education level, and monthly income with logistic regression analysis.cThirty-two missing values were excluded from the analysis.dOne hundred and n