Table 1 Association between energy and macronutrient intake with (A) Total iron intake (mg/day), (B) Non-heme iron intake and (C) Heme iron Intake in children aged 6–59 months from Puno, Peru

A. Total iron intake (mg/day)

Equation

R²

R Pearson

p-value

Energy (Kcal/day)

y = 0.0068x + 1.8286

0.39

0.62

< 0.001

Protein (g/day)

y = 0.1421x + 2.5851

0.34

0.58

< 0.001

Carbohydrate(g/day)

y = 0.0345x + 2.4889

0.35

0.6

< 0.001

Fat (g/day)

y = 0.0971x + 5.5124

0.1

0.32

< 0.01

B. Non-heme iron intake (mg/day)

Equation

R²

R Pearson

p-value

Energy (Kcal/day)

y = 0.0061x + 1.5124

0.4

0.63

< 0.001

Protein (g/day)

y = 0.1240x + 2.3256

0.31

0.56

< 0.001

Carbohydrate(g/day)

y = 0.0334x + 1.7690

0.43

0.66

< 0.001

Fat (g/day)

y = 0.0745x + 5.0631

0.08

0.28

< 0.01

C. Heme iron intake (mg/day)

Equation

R²

R Pearson

p-value

Energy (Kcal/day)

y = 0.00061x + 0.4525

0.09

0.3

< 0.001

Protein (g/day)

y = 0.0233x + 0.1729

0.23

0.48

< 0.001

Carbohydrate(g/day)

y = 0.00146x + 0.7445

0.02

0.14

< 0.05

Fat (g/day)

y = 0.02117x + 0.5537

0.13

0.28

< 0.01