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. 2022 Aug 5;22:1499. doi: 10.1186/s12889-022-13752-2

Table 2.

Characteristics of the study population by age groups. SALURBAL Study (N = 71,541)

Variables Age group 1
N = 62,556
Age group 2
N = 8985
Difference p-value*
Age [range] in years 25–65 66–97
Country contribution to sample < 0.001
 % Argentina 24.3 37.2
 % Brazil 45.6 47.1
 % Chile 3.1 5.2
 % Colombia 23.2 7.7
 % Guatemala & El Salvador 3.8 2.8
Individual-level sociodemographic characteristics
 % Female 57.7 63.0 < 0.001
 % Poor SRH 28.8 50.0 < 0.001
Educational attainment
 % Less than primary 16.9 44.7  < 0.001
 % Primary Completed 29.7 28.9
 % High-School completed 37.0 16.2
 % University completed or higher level 16.4 10.1
City-level socioeconomic characteristics
 Mean (SD) Socioeconomic Index, Z-score −0.09 (0.92) 0.02 (0.78) < 0.001
 Mean (SD) GDP per-capita 14,080.12 (8782.2) 16,405.8 (8987.7) < 0.001
 Median GDP per-capita 11,225.4 16,263.2
 Mean (SD) Population size 3,601,395 (5139389) 4,307,837 (5843049) < 0.001
 Median Population size 1,407,681 1,646,057

GDP Gross Domestic Product, SD Standard deviation, SRH Self-rated health.

* P values from Wilcoxon Mann Whitney test for continuous variables and Chi-square test for categorical variables