Table 4.

Risk factors for stress (multivariate analysis)

Risk factor	Adjusted OR (95% CI)	p value
Gender (female)	2.7 (1.8-3.9)	<0.0001
Year of study
1st	3.2 (1.6-6.2)	0.001
2nd	2.4 (1.2-4.8)	0.012
3rd	1.6 (0.87-3.1)	0.13
4th	0.45 (0.23-0.91)	0.02
Physical problem (yes)	2.01 (1.4-2.8)	<0.0001

OR=Odds ratio;

CI=Confidence interval