POSTGRADUATE INSTITUTE OF MEDICINE
UNIVERSITY OF COLOMBO
SELECTION EXAMINATION IN POSTGRADUATE DIPLOMA IN
Date: 9th July 2008 Time :1.00 p.m.-4.00 p.m.
Answer all five questions.
Answer each question in a separate book.
1. Describe the important factors that may increase the vulnerability of a
person to sexually transmitted infections in Sri Lanka. (100 marks)
2. Write short notes on the following :
2.1. 95% confidence interval (25 marks)
2.2. p value < 0.05 (25 marks)
2.3. Information bias (25 marks)
2.4. Odds ratio of 3.5 (25 marks)
3. Discuss the statement given below. (100 marks)
“ Provincial STD clinics in Sri Lanka are responsible for prevention
of sexually transmitted infections (STIs) and providing clinical care.
However, since the medical officers at the provincial STD clinics
have limited opportunities to reach the community, the responsibility
of the prevention of STIs should be handed over to the area medical
officer of health (MOH) “
4. A 26 year old antenatal clinic attendee complains of having few
painless lumps in the vulval region. Examination of this pregnant
mother revealed several warty growths in the vulva.
4.1. What important information would you obtain in the history.
4.2. Discuss how you would manage this patient as the medical
officer of health (MOH) in charge of the antenatal clinic.
5. The estimated number of people living with HIV in Sri Lanka by the
end of 2009 was 3000. However, the actual number of HIV cases
detected by the end of 2009 was 1196.
Discuss how HIV case detection can be improved in Sri Lanka.