Table 6.

Negative binomial regression estimated association between predictors and cases in high-income countries (N = 47)

Variables	Odds ratio	95% CI
Population ages 65 and abovea	1.0166	(0.8523, 1.2126)
Population densityb	0.9991	(0.9976, 1.0006)
Health expenditure of GDPc	1.7398	(1.2872, 2.3517)
NCD-caused deathsd	1.0370	(0.9132, 1.1776)
Healthcare workforcee	0.9942	(0.9848, 1.0037)
Hospital bedsf	0.8983	(0.7288, 1.1072)
Democracy Indexg	0.5463	(0.3660, 0.8155)

^aPercentage of the population ages 65 and above

^bPopulation per km² of the country’s surface area

^cHealth expenditure as a percentage of the gross domestic product

^dPercentage of deaths caused by non-communicable diseases of total deaths

^eTotal number of medical doctors, nurses, and midwives per 10,000 population

^fNumber of hospital beds per 1000 population

^gDemocracy Index score (0–10)