In which developing countries are patents on essential medicines being filed?

Table 3 Linear regression model of predictors of number of MLEM patents in developing and emerging countries (n = 129)

	b ^{a, b}	SE Β²	β	p	R²
Constant	−5.95 (−14.10, 1.31)	4.45
Population (in million)	0.07 (0.05, 0.20)	0.01	.59	p = 0.001
GDI per capita (in 1000$)	1.20 (0.55, 1.77)	0.26	.32	p = 0.001
Total healthcare expenditure (% of GDP)	1.14 (0.38, 2.16)	0.54	.15	p = 0.037
Model R²					0.44

^a95% bias corrected and accelerated confidence intervals reported in parentheses
^bConfidence intervals and standard errors based on 1000 bootstrap samples

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