Table 1.

Number of participants interviewed, screened positive for and medically confirmed with epilepsy as well as positive predicted values of screening questionnaire and estimated prevalence of epilepsy in three villages of Burkina Faso, 2007.

Village	Number Screened	Number screened positive for epilepsy	Medically confirmed cases (subjects screened positive)*	Medically confirmed cases (self reported)*	Positive predicted value (%) of screening questionnaire (95%CI)	Estimated lifetime prevalence of epilepsy % (95% CI)#	Number of cases with active epilepsy (%lifetime cases) **	Estimated prevalence of active epilepsy (%)(95% CI)**
Batondo	337	36	16/30	0/1	53.3 (35.6; 70.5)	4.8 (2.9; 7.6)	13 (81.3)	3.9 (2.2; 6.5)
Pabré	357	20	10/13	1/3	76.9 (49.1; 93.8)	3.1 (1.7; 5.4)	10 (90.9)	2.9 (1.5; 5.0)
Nyonyogo	187	14	12/13	0/0	92.3 (67.5; 99.6)	6.5 (3.5; 10.7)	11 (91.7)	5.9 (3.1; 10.1)
Total	881	70	38/56	1/4	67.9 (54.9; 79.1)	4.5 (3.3; 6.0)	34 (87.2)	3.9 (2.8; 5.4)

^*Denominator is the number of subjects who were examined by the physician

^**Active epilepsy was defined as a case with episodes of seizures that occurred within the three years preceding the medical exam or a subject on antiepileptic medications for seizures at the time of the investigation.

^#Fourteen subjects screened positive but not examined by the physician were excluded from the analysis (six from Batondo, seven from Pabré, and one from Nyonyogo)