Table 2. Logistic regression analysis of the variables associated with suicidal ideation.

Variables	Unadjusted model			Adjusted model (-2 Log likelihood = 1137.861; Nagelkerke’s R2 = 0.259)
	Odds ratio (OR)	95% Confidence Interval (CI)	p-value	Adjusted odds ratio (AOR)	95% Confidence Interval (CI)	p-value
Gender
Female	2.29	1.74–3.01	<0.001	2.25	1.60–3.17	<0.001
Male	Reference			Reference
Year of study
1st year	0.51	0.35–0.75	<0.001	0.53	0.34–0.83	0.014
2nd year	0.55	0.38–0.80		0.63	0.41–0.97
3rd year	0.40	0.26–0.59		0.51	0.32–0.81
4th year	Reference			Reference
Permanent residence
Rural	0.59	0.42–0.83	0.002	0.61	0.42–0.90	0.014
Urban	Reference			Reference
Cigarette smoker
Yes	1.36	0.97–1.90	0.070	1.35	0.85–2.15	0.191
No	Reference			Reference
Psychoactive substance user
Yes	4.32	2.52–7.42	<0.001	2.13	1.00–4.55	0.049
No	Reference			Reference
Past-year physical illness
Yes	4.29	3.06–6.00	<0.001	1.80	1.19–2.73	0.005
No	Reference			Reference
Past-year mental illness
Yes	7.11	5.00–10.13	<0.001	2.69	1.72–4.22	<0.001
No	Reference			Reference
Any type of stressful life event during past year
Yes	4.83	3.64–6.42	<0.001	2.20	1.45–3.34	<0.001
No	Reference			Reference
Examination failure
Yes	3.39	2.44–4.71	<0.001	1.34	0.89–2.01	0.153
No	Reference			Reference
Relationship difficulties
Yes	3.83	2.79–5.24	<0.001	1.18	0.77–1.81	0.444
No	Reference			Reference
Campus ragging
Yes	2.93	1.93–4.46	<0.001	1.71	1.01–2.89	0.044
No	Reference			Reference
Family problems
Yes	3.59	2.58–4.99	<0.001	1.21	0.78–1.86	0.381
No	Reference			Reference
Other problems
Yes	0.55	0.13–2.38	0.432	0.79	0.17–3.55	0.761
No	Reference			Reference
Family mental illness history
Yes	4.10	2.98–5.64	<0.001	1.56	1.05–2.33	0.027
No	Reference			Reference
Family suicide history
Yes	3.73	2.03–6.85	<0.001	1.32	0.63–2.75	0.456
No	Reference			Reference
Family suicide attempt history
Yes	4.57	2.97–7.03	<0.001	2.07	1.22–3.49	0.006
No	Reference			Reference