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Table 1 Sociodemographic variables in preschool children from 12 to 59 moa,b

From: Sociodemographic factors associated with low intake of bioavailable iron in preschoolers: National Health and Nutrition Survey 2012, Mexico

Variables

 

Age group

12–59 mo

12–23 mo

24–59 mo

(n = 1012)

N = 3,773,479

(n = 151)

N = 472,184

(n = 861)

N = 3,301,294

% (C.I. 95%)

% (C.I. 95%)

% (C.I. 95%)

Sex

 Male

48.9 (44.7–53.0)

47.4 (36.6–58.3)

49.1 (44.6–53.6)

 Female

51.1 (46.9–55.2)

52.6 (41.6–63.3)

50.9 (46.4–55.3)

Region, n (%)

 North

17.0 (14.1–20.1)

15.8 (10.2–23.5)

17.0 (14.0–20.7)

 Center

41.8 (37.6–46.1)

31.0 (21.4–42.6)

43.4 (38.6–48.1)

 South

41.2 (37.2–45.2)

53.2 (42.6–63.5)

39.6 (35.1–44.0)

Area, n (%)a

 Rural

33.8 (30.3–37.5)

35.8 (26.7–46.0)

33.6 (29.6–37.7)

 Urban

66.2 (62.4–69.6)

64.2 (53.9–73.2)

66.4 (62.3–70.3)

SES, n (%)b

 Low

36.2 (32.1–40.4)

42.2 (32.0–52.9)

35.3 (30.8–40.0)

 Middle

40.0 (35.5–44.5)

41.2 (31.3–51.8)

39.8 (34.9–44.8)

 High

23.8 (19.8–28.4)

16.6 (8.9–28.5)

24.9 (20.5–29.8)

Maternal education levelc

 Elementary school

34.6 (30.2–39.0)

29.4 (20.9–39.5)

35.3 (30.6–40.2)

 Middle school

43.1 (38.7–47.7)

38.7 (29.0–49.1)

43.8 (38.9–48.7)

 High school

14.9 (12.0–18.2)

19.8 (12.7–29.5)

14.1 (11.1–17.8)

 Bachelor’s degree or higher

7.4 (4.8–11.1)

12.1 (5.1–26.1)

6.8 (4.1–10.7)

  1. a Rural: localities with < 2500 inhabitants, urban ≥2500 inhabitants
  2. b SES: socioeconomic status, estimated by means of analyses of main components with information of the dwelling characteristic and household goods
  3. c Available information for 974 children
  4. *Significant differences P < 0.05; Chi square test. Analyses adjusted by survey design