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. 2022 Jan 13;17(1):e0262006. doi: 10.1371/journal.pone.0262006

Table 3. Logistic regression analysis of the variables associated with suicide plans.

Variables Unadjusted model Adjusted model (-2 Log likelihood = 545.245; Nagelkerke’s R2 = 0.384)
Odds ratio (OR) 95% Confidence Interval (CI) p-value Adjusted odds ratio (AOR) 95% Confidence Interval (CI) p-value
Gender
Female 2.04 1.38–3.00 <0.001 2.03 1.21–3.42 0.007
Male Reference Reference
Year of study
1st year 0.43 0.25–0.72 <0.001 0.52 0.27–0.98 0.012
2nd year 0.31 0.17–0.54 0.32 0.16–0.64
3rd year 0.38 0.22–0.65 0.51 0.27–0.99
4th year Reference Reference
Permanent Residence
Rural 1.12 0.64–1.97 0.681 1.31 0.66–2.62 0.430
Urban Reference Reference
Cigarette smoker
Yes 2.16 1.40–3.33 <0.001 1.59 0.82–3.09 0.167
No Reference Reference
Psychoactive substance user
Yes 7.18 3.94–13.08 <0.001 2.74 1.07–7.02 0.035
No Reference Reference
Past-year physical illness
Yes 6.87 4.52–10.45 <0.001 2.09 1.22–3.58 0.007
No Reference Reference
Past-year mental illness
Yes 19.94 13.00–30.60 <0.001 7.74 4.50–13.32 <0.001
No Reference Reference
Any type of stressful life events during past-year
Yes 9.02 5.66–14.35 <0.001 3.03 1.62–5.68 <0.001
No Reference Reference
Examination failure
Yes 3.61 2.33–5.58 <0.001 1.11 0.63–1.94 0.711
No Reference Reference
Relationship difficulties
Yes 7.60 5.07–11.37 <0.001 1.51 0.86–2.65 0.151
No Reference Reference
Campus ragging
Yes 2.45 1.37–4.37 0.002 0.96 0.45–2.06 0.935
No Reference Reference
Family problems
Yes 5.15 3.39–7.84 <0.001 1.19 0.68–2.09 0.540
No Reference Reference
Other problems
Yes 0.65 0.08–4.87 0.678 0.99 0.11–8.44 0.997
No Reference Reference
Family mental illness history
Yes 5.17 3.42–7.83 <0.001 1.39 0.79–2.45 0.252
No Reference Reference
Family suicide history
Yes 5.09 2.52–10.29 <0.001 1.41 0.57–3.47 0.455
No Reference Reference
Family suicide attempt history
Yes 5.01 2.95–8.48 <0.001 1.75 0.88–3.48 0.110
No Reference Reference