Factor

Univariate Analysis

Multivariate analysis

Odds Ratio

95% CI

P-value

Odds Ratio

95% CI

P-value

Gender

0.246

0.157 - 0.387

0.000

0.209

0.129 - 0.339

0.000

Type of University

0.522

0.352 - 0.773

0.001

0.520

0.320 - 0.845

0.008

Academic level of education

First

0.028

0.056

Second

0.459

0.218 - 0.964

0.040

0.695

0.295 - 1.638

0.405

Third

0.982

0.412 - 2.345

0.968

1.363

0.529 - 3.513

0.521

Fourth

1.043

0.476 - 2.286

0.916

1.507

0.629 - 3.609

0.357

Fifth

0.670

0.290 - 1.547

0.348

0.657

0.267 - 1.618

0.361

Sixth

0.913

0.394 - 2.118

0.832

1.345

0.533 - 3.397

0.530

Have pocket money

0.650

0.386 - 1.096

0.106

Family History

1.754

1.056 - 2.913

0.030

1.511

0.862 - 2.648

0.150