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. 2022 Mar 3;18(3):e1008858. doi: 10.1371/journal.pcbi.1008858

Table 2. Summary of the top five correlation coefficients and MIC for the association between the basic reproduction number and the indicators, obtained considering estimates of the basic reproduction number just for countries in the African region or the Americas.

The columns labelled “CC” hold the coefficient, with the 95% range obtained by bootstrapping; the column labelled “N” holds the number of data points used to calculate the coefficient.

Rank Pearson Spearman MIC
Indicator CC N Indicator CC N Indicator CC N
African region
1 Unemployment, total (% of total labor force) (national estimate) 0.35
(0.09, 0.48)
24 Poverty headcount ratio at national poverty lines (% of population) -0.4
(-0.46, -0.18)
24 Number of households 3 persons—Proportion over All households 1.0
(0.19, 1.0)
6
2 Poverty headcount ratio at national poverty lines (% of population) -0.33
(-0.44, -0.08)
24 Income share held by highest 10% 0.38
(0.17, 0.5)
24 Number of households 4 persons—Proportion over All households 1.0
(0.19, 1.0)
6
3 Income share held by highest 10% 0.31
(0.09, 0.54)
24 Health expenditure, total (% of GDP) 0.38
(0.19, 0.52)
24 Immunization, measles (% of children ages 12–23 months) 0.55
(0.23, 0.65)
24
4 Poverty gap at $1.90 a day (2011 PPP) (%) -0.3
(-0.36, -0.08)
24 Income share held by highest 20% 0.33
(0.15, 0.51)
24 Unemployment, total (% of total labor force) (national estimate) 0.52
(0.28, 0.59)
24
5 Poverty gap at $3.20 a day (2011 PPP) (% of population) -0.29
(-0.34, -0.06)
24 Educational attainment, at least completed upper secondary, population 25+, male (%) (cumulative) -0.32
(-0.45, -0.06)
19 Physicians (per 1,000 people) 0.49
(0.27, 0.57)
24
Americas
1 Exclusive breastfeeding (% of children under 6 months) 0.45
(0.3, 0.52)
23 Urban population (% of total) 0.61
(0.53, 0.69)
26 Immunization, DPT (% of children ages 12–23 months) 0.58
(0.36, 0.63)
26
2 Immunization, DPT (% of children ages 12–23 months) 0.45
(0.19, 0.51)
26 Exclusive breastfeeding (% of children under 6 months) 0.59
(0.52, 0.65)
23 Exclusive breastfeeding (% of children under 6 months) 0.55
(0.42, 0.6)
23
3 Unemployment, total (% of total labor force) (modeled ILO estimate) -0.42
(-0.5,
-0.28)
26 Prevalence of underweight, weight for age (% of children under 5) -0.57
(-0.67, -0.47)
26 Poverty gap at $3.20 a day (2011 PPP) (% of population) 0.53 (0.41, 0.53) 26
4 Educational attainment, at least completed upper secondary, population 25+, total (%) (cumulative) 0.42
(0.21, 0.51)
24 Unemployment, total (% of total labor force) (modeled ILO estimate) -0.57
(-0.62, -0.48)
26 Poverty headcount ratio at $3.20 a day (2011 PPP) (% of population) 0.53
(0.41, 0.53)
26
5 Urban population (% of total) 0.42
(0.28, 0.51)
26 Immunization, DPT (% of children ages 12–23 months) 0.49
(0.39, 0.59)
26 Adjusted net enrollment rate, primary (% of primary school age children) 0.48
(0.32, 0.57)
25