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. 2016 May 12;11(5):e0155051. doi: 10.1371/journal.pone.0155051

Table 3. Factors associated with Iron deficiency anemia among children 6–59 months of age in Pakistan, Univariate and Multivariate analysis (N = 2373).

Characteristics IDA (95% CI) Un adjusted OR (95% CI) P-value Adjusted OR (95% CI) P-value
Household factors
Residence
  Rural 1423 (68.8) 65.2–72.3 0.89 (0.79–1.02) 0.088 0.77 (0.65–0.90) 0.001
  Urban 950 (31.2) 27.7–34.8 Ref.
Wealth quintiles
  Poorest 505 (22.3) 19.8–24.8 1.04 (0.86–1.26) 0.655 0.65 (0.51–0.85)
  2 448 (19.9) 17.9–21.9 1.06 (0.88–1.29) 0.545 0.83 (0.65–1.05)
  3 509 (20.9) 19.0–22.3 1.11 (0.91–1.35) 0.314 0.99 (0.79–1.26)
  4 510 (21.2) 19.2–23.3 1.26 (1.04–1.51) 0.017 1.19 (0.96–1.48)
  5 wealthiest 401 (15.6) 13.4–17.8 Ref. Ref.
Food security
  Food insecure 1460 (64.7) 62.2–67.1 1.23 (1.08–1.41) 0.003 1.20 (1.10–1.40) 0.002
  Food secure 860 (35.3) 32.9–37.8 Ref.
Maternal factors
Maternal Education
  Illiterate 1293 (55.6) 52.7–58.4 1.11 (0.86–1.41) 0.439
  Primary or less (1–5) 378 (16.4) 14.6–18.3 1.41 (1.07–1.85) 0.016
  Middle(6–8) 218 (9.3) 7.8–10.7 1.40 (1.03–1.9) 0.032
  Matric(9–10) 288 (11.4) 9.8–12.9 1.28 (0.96–1.7) 0.09
  Intermediate & above (>10) 183 (7.4) 5.8–9.0 Ref.
Maternal iron deficiency anema
  Anemic 558 (26.9) 24.6–29.3 1.91 (1.65–2.21) 0.000 1.72 (1.47–2.01) 0.001
  Normal 1577 (73.1) 70.7–75.4 Ref. Ref.
BMI (kg/m2)
  <18.5 410 (17.5) 15.8–19.1 1.12 (0.97–1.29) 0.130
  18.5–24.9 1223 (52.5) 50.2–54.7 Ref.
  25–29.9 493 (20.1) 18.2–22.1 0.92 (0.79–1.04) 0.163
  > = 30 247 (9.9) 8.6–11.3 0.83 (0.69–0.99) 0.042
Child’s factors
Child’s sex
  Female 1067 (45.9) 43.5–48.4 0.86 (0.77–0.97) 0.012 0.87 (0.76–0.98) 0.028
  Male 1306 (54.1) 51.6–56.5 Ref. Ref.
Child’s Age in months
  <24m 1252 (53.9) 51.5–56.2 1.45 (1.29–1.62) 0.000 1.35 (1.18–1.55) 0.0002
  24-59m 1121 (46.1) 43.8–48.5 Ref. Ref.
Presence of clinical Anemia in children
  Yes 1229 (52.6) 49.7–55.6 5.03 (4.41–5.74) 0.000 5.69 (4.93–6.56) 0.0001
No 1131 (47.4) 44.4–50.3 Ref. Ref.
Vitamin A deficiency
  Deficient (< = 0.70 μmol/l) 1221 (51.5) 48.5–54.5 0.93 (0.83–1.05) 0.261
  Non deficient (>0.70 μmol/l) 1084 (48.5) 45.5–51.5 Ref.
Zinc deficiency
  Deficient (<60 μg/dl) 852 (37.8) 34.9–40.6 1.07 (0.95–1.21) 0.240
  Non-Deficient (60–150 μg/dl) 1409 (62.2) 59.4–65.1 Ref.
Height for Age–Stunted
  Stunting(-6 to -2) 1158 (50.4) 47.9–52.9 1.44 (1.27–1.64) 0.000 1.42 (1.23–1.63) 0.0001
  Normal(-1.99 to +6) 1160 (49.6) 47.1–52.2 Ref. Ref.
Weight for Height–Wasted
  Wasting(-5 to -2) 351 (15.1) 13.5–16.7 0.95 (0.82–1.11) 0.532
  Normal(-1.99 to +5) 1963 (84.9) 83.3–86.5 Ref.
Weight for Age—Under weight
  Underweight(-6 to -2) 868 (37.3) 35.0–39.6 1.28 (1.15–1.43) 0.000
  Normal(-1.99 to +5) 1481 (62.7) 60.4–65.0 Ref.
History of worm infestation
  Yes 218 (9.8) 8.4–11.3 1.33 (1.1–1.62) 0.003
  No 2093 (90.2) 88.7–91.6 Ref.