Table 2

Factors affecting knowledge score on self-medication

Univariate analysis (Chi-square) Knowledge Score

Multivariate analysis (Logistic regression) Knowledge Score < 4


< 4

≥4

X2

P

OR (95% CI)

P

n (%)

n (%)


Age

18-29

64 (15.9)

154 (22.4)

49.05

< 0.001

reference

0.893

30-59

208 (51.6)

434 (63.0)

0.97 (0.64-1.47)

0.042

60 or above

131 (32.5)

101 (14.7)

1.82 (1.02-3.26)

Gender

Male

191 (47.5)

340 (49.3)

0.316

0.616

0.91 (0.67-1.23)

0.529

Female

211 (52.5)

350 (50.7)

reference

Education

No schooling/primary

100 (25.1)

61 (8.9)

64.74

< 0.001

3.19 (1.78-5.72)

< 0.001

Secondary

218 (54.6)

379 (55.2)

1.50 (1.03-2.19)

0.035

Diploma/degree

81 (20.3)

246 (35.9)

reference

Monthly household income (HK$)#

< $2000-$5999

37 (13.4)

45 (8.3)

11.98

0.007

0.90 (0.48-1.68)

0.746

$6000-$9999

27 (9.8)

46 (8.5)

0.99 (0.55-1.78)

0.973

$10000-$24999

130 (47.1)

231 (42.5)

1.20 (0.83-1.73)

0.336

≥$25000

82 (29.7)

221 (40.7)

reference

Presence of chronic illness

Yes

309 (76.9)

571 (82.9)

5.88

0.017

1.03 (0.68-1.57)

0.877

No

93 (23.1)

118 (17.1)

reference


#HKD1 = USD0.128

You et al. BMC Clinical Pharmacology 2011 11:19   doi:10.1186/1472-6904-11-19

Open Data