Table 2.

Multiple logistic regression analysis: performed using forward model selection with a 5 % significance level

	Odds ratio	95 % CI	p Value
Adolescent	6.312	2.379 to 16.746	0.0002
SC MTX	4.487	1.708 to 11.785	0.002
Duration of MTX more than 1 year	3.865	1.003 to 14.889	0.049

The outcome is nausea (yes or no)