Table 2.
Percentage of Infants 0 to 12 Months Old Consuming Different Types of Formula or Regular Milk, NHANES 2003–2010, by Family Income-to-Poverty Ratio (IPR).a
| Overall (Unweighted n = 1587) | IPR ≤185% (Unweighted n = 1004)b |
IPR >185% (Unweighted n = 474)b |
|
|---|---|---|---|
| Cow’s milk formula | 68.9 (65.1–72.5) | 72.4 (68.5–76.3) | 64.9 (59.5–70.2)c |
| Soy-based | 11.6 (9.6–14.0) | 8.3 (6.1–10.4) | 15.8 (11.9–19.6)c |
| Specialty | 6.3 (4.9–8.1) | 6.5 (4.3–8.9) | 6.0 (3.5–8.5) |
| Gentle/lactose-reduced | 5.4 (3.6–7.8) | 3.8 (2.4–5.1) | 7.3 (3.1–11.4) |
| Regular milk (not formula) | 12.6 (10.3–15.3) | 14.4 (12.4–16.4) | 10.9 (8.1–13.6)c |
a
Data are presented as percentage (95% confidence interval). Percentages in each column do not sum to 100 because children may consume more than one type of formula. Percentages are adjusted for age (in months) of the child.
b
Sample sizes for these variables are based on the 1478 infants without missing data on IPR.
c
Indicates significant difference from reference group, IPR ≤185%, P < .05.