Table 1: Sociodemographics characteristics of the cohort of schoolchildren. Medellin, Colombia.

Characteristics20102011
No.%No.%

Number of schoolchildren enrolled23791840

Sex
 Male112347.294851.5
 Female125652.889248.5

Age (years)
 5672.800
 61415.9563.0
 71355.71166.3
 81375.8925.0
 92159.01106.0
 101978.318410.0
 1131213.11508.2
 1233314.025714.0
 132219.325714.0
 142098.818610.1
 151827.71709.2
 161476.21628.8
 17672.8774.2
 18130.5191.0
 1930.140.2
Mean ± SD (range) (5–19) (6–19)

Socioeconomic status
 Low133756.293450.8
 Median87336.775941.3
 High1636.91457.9
 No data60.320.1