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Table 2 Logistic regression analysis of the associations between diet quality indices and nutrient adequacy in Iranian households (n = 6935)

From: A comparison of diet quality indices in a nationally representative cross-sectional study of Iranian households

Nutrientsa

Overall

N (%)

HEI

DQI-I

OR

95% CI

P-valueb

OR

95% CI

P-valueb

Protein (g/day)

 Inadequate

1549 (22.3)

1.00

 -

 -

1.00

 -

 -

 Adequate

5386 (77.7)

1.01

1.00, 1.02

0.046

1.09

1.08, 1.09

< 0.001

Calcium (mg/day)

 Inadequate

6480 (93.4)

1.00

 -

 -

1.00

 -

 -

 Adequate

455 (6.6)

1.11

1.10, 1.13

< 0.001

1.14

1.13, 1.16

< 0.001

Iron (mg/day)

 Inadequate

6815 (98.4)

1.00

 -

 -

1.00

 -

 -

 Adequate

120 (1.7)

0.99

0.97, 1.02

0.733

1.08

1.06, 1.11

< 0.001

Vitamin C (mg/day)

 Inadequate

2932 (42.3)

1.00

 -

 -

1.00

 -

 -

 Adequate

4003 (57.7)

1.19

1.17, 1.20

< 0.001

1.12

1.11, 1.12

< 0.001

  1. Abbreviations: HEI Healthy Eating Index, DQI-I Diet quality index international
  2. aThe average daily household requirements were calculated by dividing the total daily requirements of all the household members by the number of household members
  3. bAssociations between diet quality indices (continuous independent) and nutrient adequacy (categorical dependent) were examined by using Wald tests of associations for logistic regression