Table 1.

Linear Regression Models for Average Number of Cardiovascular Publications in 1999 and Annual Change in Fractional Cardiovascular Publications Between 1999 and 2008 From Africa and the Rest of the World

Countries Group*	Cardiovascular Publications in 1999*	Annual Change in Cardiovascular Publication Production (%)*
Africa, n=52	139 (82, 196)	18 (7, 29)
Countries outside of Africa
High‐income OECD, n=31	33 470 (31 259, 35 681)	966 (552, 1380)
Other high‐income, Non‐OECD, n=25	173 (136, 210)	24 (17, 31)
Other upper‐middle‐income, n=39	1129 (324, 1934)	562 (411, 713)
Other lower‐middle‐income, n=35	196 (100, 292)	54 (36, 72)
Other low‐income, n=9	4 (0, 8)	1 (1, 2)

OECD indicates Organization for Economic Cooperation and Development.

^*n represents the number of countries within each group.

^*Baseline year: 1999. Numbers presented are average number of cardiovascular publications with 95% CI.

^*Per‐year increment. Aggregated fractional cardiovascular publications in year i=cardiovascular publications in 1999+annual change in cardiovascular publications×(year i−1999).