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Table 2 Knowledge on use of opioid-containing products among respondents (n = 520)

From: Extent of misuse and dependence of codeine-containing products among medical and pharmacy students in a Nigerian University

 User of opioids-containing products
n = 146
Non-user of opioids-containing products
n = 374
Knowledge questionCorrect answer
n (%)
Wrong answer
n (%)
Correct answer
n (%)
Wrong answer
n (%)
1.Category of people who can use opioids (Answer: Adults and children)59 (40.4)87 (59.6)183 (48.9)191 (51.1)
2.Category of people who cannot use opioid.
(Answer: None of adults and children)
4 (2.7)142 (97.3)8 (2.1)366 (97.9)
3.Can opioid use lead to dependence/addiction
(Answer: Yes)
134 (91.8)12 (8.2)338 (90.4)36 (9.6)
4.Addiction is defined as a chronic relaxing brain disease that is characterized by compulsive drug seeking and use despite harmful consequences.
(Answer: Yes)
143 (97.9)3 (2.1)357 (95.5)17 (4.5)
5.Drug dependence is a medical term that refers to the state of craving a certain drug in order to function normally.
(Answer: Yes)
135 (92.5)11 (7.5)344 (92.0)30 (8.0)
Distribution of scoresUsing opioidsNot using opioids 
 n = 146n = 374 
00 (0.0)3 (100.0) 
11 (14.3)6 (85.7) 
213 (37.1)22 (62.9) 
381 (29.6)193 (70.4) 
450 (25.1)149 (74.9) 
51 (50.0)1 (50.0) 
Cut-off scoreFrequency (%) Remark
<  4 (i.e. <  80%)95 (65.1)224 (59.8)Poor knowledge
≥ 4 (i.e. ≥ 80%)51 (34.9)150 (40.1)Good knowledge
 [X2 = 1.186 p-value = 0.276]