Table 1.

Summary estimates of the incidence correction factor

Geographical area	N	K	95% CI	P value*
All available	352	3.5	(3.1 to 3.9)	<0.001
Western and Central Africa	197	3.6	(3.0 to 4.3)	<0.001
Burkina Faso	31	4.0	(3.4 to 4.6)	<0.001
Chad	26	14.7	(8.8 to 2.5)	<0.001
Democratic Republic of Congo	3	4.9	(1.9 to 12.6)	<0.001
Ghana	3	1.9	(1.0 to 3.9)	0.40
Liberia	15	5.9	(3.2 to 11.1)	<0.001
Mali	32	4.6	(3.7 to 5.6)	<0.001
Mauritania	2	5.0	(0.9 to 26.4)	0.002
Niger	16	8.4	(6.2 to 11.3)	<0.001
Nigeria	69	1.3	(1.0 to 1.6)	<0.001
Eastern and Southern Africa	99	3.7	(3.1 to 4.3)	<0.001
Angola	1	6.4	(3.1 to 14.5)	–
Burundi	1	30.1	(7.0 to 106.4)	–
Ethiopia	29	6.7	(5.3 to 8.4)	<0.001
Kenya	27	2.3	(1.6 to 3.2)	<0.001
Madagascar	8	8.5	(6.7 to 10.8)	0.13
Somalia	2	9.5	(0.7 to 134.6)	<0.001
South Sudan	5	2.6	(1.8 to 3.8)	0.015
Uganda	26	2.4	(1.9 to 2.9)	<0.001
Middle East and North Africa	35	2.8	(2.3 to 3.4)	<0.001
Yemen	35	2.8	(2.3 to 3.4)	<0.001
South Asia	16	2.3	(1.4 to 3.9)	<0.001
Afghanistan	16	2.3	(1.4 to 3.9)	<0.001
East Asia and Pacific	5	12.7	(5.7 to 28.4)	<0.001
Myanmar	5	12.7	(5.7 to 28.4)	<0.001

*P value for Cochrane’s Q statistic assessing heterogeneity between K estimates within a geographical area.