Table 3.
Characteristics associated with anemia among school-aged adolescent girls aged 12.00–14.99 years in the USA.
| † Characteristics | USA | |||
|---|---|---|---|---|
| Anemia (%) * | UnAdj (95% CI) | ** Adj OR (95% CI) | p-Value ‡ | |
| Continuous | ||||
| 1 CRP (ng/mL) | - | - | 1.0 (0.99–1.04) | 0.06 |
| 2 Age (years) | - | - | 0.9 (0.4–1.8) | 0.72 |
| Categorical | ||||
| 3 Race/Ethnicity | ||||
| Non Black | 1.2 | |||
| Black | 16.7 | 16.5 (5.5–49.5) | 14.1 (4.7–42.1) | <0.0001 |
| 4 Asset | ||||
| All Other | 3.0 | |||
| Poorest | 7.9 | 2.8 (1.3–5.9) | 1.3 (0.8–2.2) | 0.33 |
| 5 Low Ferritin % | ||||
| No | 2.2 | |||
| Yes | 17.2 | 9.1 (4.5–18.4) | 8.0 (3.0–21.3) | <0.0001 |
| 6 Overweight | ||||
| No | 3.6 | |||
| Yes | 3.9 | 1.1 (0.4–3.2) | 0.8 (0.3–2.0) | 0.63 |
* Percentage of school-aged adolescent girls with anemia in each predictor group of interest ‡ p value is for association between the given factor and anemia in the multivariable model, null hypothesis for p-value is that OR = 1 ** Adjusted for all other variables in the table, anemia OR is presented for a multivariable logistic model (outcome = anemia) that accounted for cluster study design: sample size available in the USA for multivariable model n = 697. 1 CRP: C-Reactive Protein; used as a continuous variable; 2 Age used as a continuous variable; 3 Grouped for analysis as Black and Non-Black; 4 Grouped for analysis as Poorest and All Other. Original categories per PCA Asset Index—Poorest, Poor, Average, Rich, Richest; 5 Low Ferritin defined as: Age ≥ 5 years, SF < 15 µg/L; 6 Grouped for analysis with Overweight = BAZ > 2 (Y/N) † There were no vitamin A deficient or stunted school-aged adolescent girls with anemia in the US.