The national context: Nigeria

Nigeria is Africa's most populous country, and the 7th most populous country worldwide, with over 181 million residents. The average life expectancy is 55 years, the lowest in West Africa.  Agriculture is the largest sector of Nigeria's economy, employing two-thirds of the workforce. The national literacy rate is approximately 60%. In Oyo state, where INTREPID II is being conducted, nearly 30% of the population lives below the poverty line. Although English is the official language of the country, over 500 native languages are spoken in Nigeria, including Hausa, Yoruba, Igbo and Fula. ​

Photo taken in Oyo State, Nigeria

Catchment area for INTREPID II in Nigeria

​The catchment site in Nigeria comprises 3 Local Government Areas in and around the metropolitan city of Ibadan, the capital of Oyo State, South West Nigeria: Idaban North East, Ibadan South East, and Ona-Ara.The catchment areas have a population over a million individuals, with close to 52% of the population being between the ages of 18 and 64 years (the age group of interest for INTREPID II).

Total population and population at risk in the catchment area in Nigeria:

Local Government Area	Total Population*	Population at Risk (18-64yrs)​**
Ibadan North East	465,700	241,698
Ibadan South East	374,400	194,314
Ona Ara	373,100	193,639
Total	1,213,200	629,651

*2016 population projection of the 2006 Census (Annual Growth Rate = 3.46%)
**calculated as 52% of the population, based on state figures

Hear from the principal investigator of the project in Nigeria...

We asked Professor Ojo Gureje, Principal Investigator of INTREPID II (Nigeria), for his thoughts ​on (a) the most important research question that INTREPID II is investigating, (b) key challenges in doing this type of research in his setting, (c) how the INTREPID I pilot study informed his current work, (d) what services exist for psychosis in this site, and (e) how the INTREPID II evidence can help to improve the lives of people living with psychosis.