From: Humoral immune factors and asthma among American Indian children: a case–control study
Cases | Controls | ||||
---|---|---|---|---|---|
N = 108 | N = 216 | ||||
Characteristic | Median or N (%) | Min - Max | Median or N (%) | Min - Max | P value |
95 % CI (mean) | 95 % CI (mean) | ||||
Male, N (%) | 57 (53 %) | 43.4–63.2 | 109 (51 %) | 57.1–43.8 | 0.634 |
Age (years) | 11.81 | 6.1–17.9 | 12.12 | 6.1–18.3 | 0.001 |
11.4–12.2 | 11.7–12.6 | ||||
BMI (kg/m2) | 24.4 | 14.6–62.1 | 21.9 | 10.8–45.4 | 0.004 |
24.3–26.5 | 22.7–24.4 | ||||
White Blood Cells (WBC) (X 1000) | 7.30 | 3.3–16.5 | 6.80 | 2.7–14.7 | 0.001 |
7.2–7.9 | 6.7–7.1 | ||||
PMNsa (% of WBC) | 54.7 | 25.7–85.1 | 56.2 | 3.6–85.5 | 0.398 |
53.4–56.1 | 54.7–57.5 | ||||
Lymphocytes (%) | 30.9 | 9.0–65.6 | 30.8 | 12.0–54.8 | 0.797 |
30.4–32.8 | 30.2–35.5 | ||||
Basophils (%) | 1.3 | 0.5–6.3 | 1.5 | 0.3–17.0 | 0.273 |
1.4–1.6 | 1.5–1.9 | ||||
Eosinophils (%) | 4.1 | 0.3–22.3 | 2.7 | 0.1–27.2 | 0.002 |
4.8–5.6 | 3.3–4.2 | ||||
CRP (mg/L) | 1.12 | 0.35–17.2 | 1.07 | 0.36–74.4 | 0.254 |
2.0–2.8 | 1.4–3.5 | ||||
IgEb (total, kU/L) | 213 | 3.0–4473 | 89 | 2.0–2676 | 0.001 |
382.6–573.9 | 169.1–271.0 | ||||
IgE, Alternariac | 24 (22 %) | 14.4–30.1 | 11 (5 %) | 2.2–8.0 | 0.001 |
IgE, cat dander | 34 (32 %) | 22.7–40.2 | 17 (8 %) | 4.3–11.5 | 0.001 |
IgE, cockroach | 29 (27 %) | 18.5–35.2 | 28 (13 %) | 8.5–17.4 | 0.001 |
IgE, dust mite | 40 (37 %) | 27.9–46.1 | 39 (18 %) | 12.9–23.2 | 0.001 |
IgE, dog dander | 30 (28 %) | 19.3–36.2 | 13 (6 %) | 2.8–9.2 | 0.001 |
> one antigen over detection limit | 66 (61 %) | 51.9–70.3 | 61 (28 %) | 22.2–34.2 | 0.001 |
History of hay fever or seasonal allergy | 38 (36 %) | 26.2–44.2 | 65 (32 %) | 24.0–36.2 | 0.444 |