Table 2 Showing frequency and percentage (%) for answers to knowledge questions with total mean score

1-Have you heard about PEP?

Yes

312^A

77.2%

< 0.001*

No

92^B

22.8%

2-Soure of information about PEP?

Clinical training

135^A

29.5%

< 0.001*

Mass media

44^BC

9.6%

Journals

25^C

5.5%

Friends

104^A

22.7%

Seminars

27^C

5.9%

Textbooks

65^B

14.2%

Others

58^B

12.7%

3-When do you think PEP should be indicated?

When the source patient is at high risk for HIV/H

54^C

12.1%

< 0.001*

When the patient is known to be HIV/HBV positive

114^B

25.4%

When the HIV/HBV status of the source is unknown

67^C

15.0%

For any needle stick injury in the workplace

213^A

47.5%

4-What is the maximum delay for PEP?

Within an hour

72^BC

17.6%

 < 0.001*

12 h

145^A

35.4%

24 h

106^B

25.9%

48 h

46^CD

11.2%

72 h

41^D

10.0%

5-What is the preferable time to take PEP?

Within an hour of exposure

283^A

70.4%

 < 0.001*

After 6 h of exposure

52^B

12.9%

After 12 h of exposure

62^B

15.4%

After 72 h of exposure

5^C

1.2%

6-What is the effectiveness of PEP?

20–30%

20^D

5.0%

 < 0.001*

30–50%

53^C

13.3%

60–70%

183^A

46.0%

80–100%

118^B

29.6%

100%

24^D

6.0%

7-What is the length of time to take PEP?

For 28 days

165^A

41.4%

 < 0.001*

For 40 days

81^B

20.3%

For 6 months

114^B

28.6%

For life

39^C

9.8%

8-Have you attended any training about PEP?

Yes

43^B

10.7%

 < 0.001*

No

358^A

89.3%

9-Do you know about the PEP guidelines?

Yes

84^B

20.9%

 < 0.001*

No

317^A

79.1%

Total mean knowledge score

0.45 ± 0.50

Median (range)

0.00(1.00)