Table 5.

Odds ratios for having the metabolic syndrome in patients receiving methotrexate compared with those not on methotrexate

	Odds ratio	95% confidence interval	P value
Crude	0.483	0.32 to 0.73	0.001
Model a	0.505	0.33 to 0.77	0.001
Model b	0.525	0.34 to 0.80	0.003
Model c	0.517	0.33 to 0.80	0.004

Crude = unadjusted model

Model a = adjusted for age and sex

Model b = adjusted for age, sex, disease duration, erythrocyte sedimentation rate and health assessment questionnaire score

Model c = adjusted for age, sex, disease duration, erythrocyte sedimentation rate, health assessment questionnaire score, sulphasalazine, hydroxyxhloroquine, leflunomide, anti-tumour necrosis factor therapy, glucocorticoid use and NSAID use.