Median dietary intakes (with interquartile ranges) of nutrients in the three study groups
| Nutrient | RNI | Brittle asthma | Non-brittle asthma | Healthy adults |
|---|---|---|---|---|
| Mg | 270 mg/day | 233.0 (174.0–275.0) | 277.0 (206.5–323.5) | 276.0 (214.0–312.0) |
| Se | 60 μg/day | 42.0 (35.0–49.0) | 52.0 (34.5–63.5) | 50.0 (33.5–74.0) |
| Vitamin A | 600 μg/day | 522.5 (270.0–798.0) | 869.5 (667.5–1189.5)* | 706.5 (580.0–987.5)** |
| Vitamin C | 40 mg/day | 48.0 (29.0–89.5) | 64.0 (49.0–101.5) | 81.5 (50.0–128.5) |
| Vitamin E | 3 mg/day (SI) | 3.4 (2.0–3.9) | 4.6 (3.3–6.3)† | 4.5 (3.0–6.4)†† |
RNI = reference nutrient intake; SI = safe intake. Brittle asthma:non-brittle asthma *p=0.01; brittle asthma:healthy adults**p=0.04; brittle asthma:non-brittle asthma †p=0.005; brittle asthma:healthy adults ††p=0.007.