Table 4 Univariate and multivariate linear regression analysis model for variables associated with knowledge score (N = 494)

 Male

220 (44.5)

−.21 (−2.02 to −.83)

<.0001

−.020 (−.84 to .57)

.71

 Female

274 (55.5)

Reference

Reference

 18-20

79 (16)

Reference

Reference

 21-23

335 (67.8)

−.07 (−1.33 to .33)

.237

−.003 (−.85 to .81)

.96

  > 23

80 (16.2)

−.24 (−3.24 to − 1.14)

<.0001

−.132 (−2.30 to −.16)

.025

 < SR 15,000

231 (46.8)

Reference

Reference

 ≥ SR 15,000

263 (53.2)

−.189 (−1.90 to −.70)

<.0001

−.068 (− 1.10 to .166)

.148

 Urban

464 (93.9)

Reference

–

 Rural

30 (6.1)

.007 (−1.17 to 1.37)

.877

 Nuclear

364 (73.7)

Reference

Reference

 Extended

54 (10.9)

.047 (−.46 to 1.50)

.297

−.02 (− 1.18 to .74)

.649

 Grand parents

4 (0.8)

.046 (−1.62 to 5.12)

.307

.03 (−2.29 to 4.58)

.514

 Single parents

57 (11.5)

−.052 (−1.51 to .40)

.255

−.084 (−1.82 to .03)

.058

 Others

15 (3)

.109 (.40 to 3.93)

.016

.074 (−.21 to 3.16)

.087

 Medicine

282 (57.1)

−.315 (−2.76 to −1.60)

<.0001

−.288 (−3.06 to −.927)

<.0001

 Nursing

212 (42.9)

Reference

Reference

 1st

2 (0.4)

Reference

–

 2nd

3 (0.6)

−.008 (−6.32 to 5.65)

.913

 3rd

140 (28.3)

−.197 (−6.16 to 3.18)

.530

 4th

140 (28.3)

−.297 (−6.93 to 2.41)

.343

 5th

72 (14.6)

−.26 (−7.24 to 2.16)

.288

 6th

49 (9.9)

−.26 (−7.65 to 1.81)

.226

 Internship

88 (17.8)

−.44 (−8.63 to .744)

.099

 1-3

34 (6.9)

Reference

–

 4-6

229 (46.4)

−.152 (−2.28 to .19)

.098

 ≥ 7

231 (46.8)

−.129 (−2.12 to .35)

.16

 0

332 (67.2)

Reference

–

 1

129 (26.1)

.037 (−.41 to .99)

.412

 2

32 (6.5)

−.002 (−1.27 to 1.23)

.972

 ≥ 3

1 (0.2)

.046 (−3.24 to 10.26)

.308