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Table 2 Prevalence of combined overweight and obesity of school-aged children based on the WHO and IOTF growth references, in the analytical dataset, El Salvador, 2015/2016

From: Overweight and obesity of school-age children in El Salvador according to two international systems: a population-based multilevel and spatial analysis

CharacteristicPrevalence (%) [95%CI]Difference (%)Prevalence (%) [95%CI]Difference (%)
 WHOIOTFWHO - IOTFWHOIOTFWHO - IOTF
 BoysBoys GirlsGirls 
Place of residence
 Urban38.9 [37.4–40.3]28.2 [26.7–29.7]10.735.1 [33.8–36.3]29.5 [28.4–30.6]5.6
 Rural26.6 [25.5–27.8]17.6 [16.6–18.6]9.023.6 [22.5–24.7]18.7 [17.7–19.8]4.9
School type
 Public29.9 [28.8–31.1]20.3 [19.3–21.3]9.626.8 [25.7–27.8]21.7 [20.8–22.7]5.1
 Private46.4 [45.0–47.8]35.5 [34.1–37.0]10.942.2 [40.8–43.5]36.0 [34.6–37.3]6.2
Child age in years
 6.0 to 6.935.5 [34.2–36.8]24.6 [23.4–25.8]10.931.5 [30.1–32.8]26.2 [25.0–27.5]5.3
 7.0 to 7.932.6 [30.9–34.5]23.0 [21.3–24.8]9.629.6 [27.8–31.4]24.3 [22.7–26.0]5.3
 8.0 to 8.926.6 [24.0–29.4]17.3 [15.2–19.6]9.321.4 [19.6–23.6]16.9 [15.3–18.6]4.5
 9.0 to 9.924.5 [22.1–27.0]15.8 [13.7–18.2]8.718.7 [16.3–21.3]14.1 [11.8–16.9]4.6
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