Table 10. Aggregate stock and overall emigration fraction of Sub-Saharan African physicians in the US physician workforce in 2011.

Source Countries (Top 12)	SSA-IMGsa	SSA-USMGsa	Other IMGsa	Aggregate Stock of SSA Physicians in the 2011 AMA-PM	Physicians Reported in Source Countries	Overall Emigration Fraction (%)	Potentially Active SSA Physicians in the AMA-PM (Age ≤70)	“Active” Emigration Fraction (%)	Potential Gain in Source Countries in Case of 50% Return Migration
Liberia	56	96	23	175	51	77.4%	170	76.9%	166.7%
Ghana	721	404	118	1,243	2,033	37.9%	1,226	37.6%	30.2%
Tanzania	24	35	95	154	300	33.9%	141	32.0%	23.5%
Ethiopia	531	240	91	862	2,152	28.6%	844	28.2%	19.6%
Zambia	81	82	59	222	836	25.5%	221	25.4%	17.0%
Zimbabwe	112	43	9	164	827	16.5%	155	15.8%	9.4%
Cameroon	63	66	70	199	1,346	12.9%	199	12.9%	7.4%
Kenya	173	296	394	863	7,549	10.3%	830	9.9%	5.5%
Uganda	145	70	126	341	3,361	9.2%	321	8.7%	4.8%
Nigeria	3,271	407	139	3,817	55,376	6.4%	3,763	6.4%	3.4%
South Africa	1,786	178	43	2,007	38,236	5.0%	1,789	4.5%	2.3%
Sudan	329	31	43	403	10,813	3.6%	390	3.5%	1.8%
Other (n = 16)	78	178	113	369	21,666	1.7%	328	1.5%	0.8%
Total	7,370	2,126	1,323	10,819	144,546	7.0%	10,377	6.7%	3.5%

Data sources: World Health Organization [5]; American Medical Association [115].

^aSSA-IMGs, sub-Saharan African-trained medical graduates; SSA-USMGs, US-trained medical graduates born in sub-Saharan Africa; Other IMGs, sub-Saharan African-born internationals medical graduates trained outside sub-Saharan Africa.