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Table 2 Prevalence of self-reported FA in Vietnam

From: Prevalence of food allergy in Vietnam: comparison of web-based with traditional paper-based survey

  Self-reported FA Doctor-diagnosed FA IgE-mediated FA
Web-based survey Paper-based survey Difference, P Web-based survey Paper-based survey Difference, P Web-based survey Paper-based survey Difference, P
Any food 27.8 (25.7–29.8) 18.0 (17.2–18.8) 0.0000 5.7 (4.6–6.7) 5.8 (5.4–6.3) 0.7795 4.1 (3.2–5.0) 4.1 (3.7–4.6) 0.9590
Crustacean 13.8 (12.2–15.4) 9.5 (8.9–10.1) 0.0000 3.3 (2.5–4.2) 3.5 (3.2–3.9) 0.6928 2.6 (1.9–3.4 2.6 (2.3–3.0) 0.6277
Fish 11.0 (9.6–12.4) 4.8 (4.3–5.2) 0.0000 2.4 (1.7–3.1) 1.9 (1.6–2.2) 0.1233 1.7 (1.1–2.3) 1.6 (1.3–1.8) 0.3281
Mollusk 8.9 (7.6–10.2) 4.7 (4.3–5.2) 0.0000 2.0 (1.4–2.6) 1.7 (1.4–2.0) 0.3829 1.6 (1.0–2.2) 1.3 (1.1–1.6) 0.8912
Beef 3.0 (2.2–3.8) 2.5 (2.2–2.9) 0.2314 1.1 (0.6–1.6) 1.1 (0.9–1.3) 0.9829 0.8 (0.4–1.2) 0.8 (0.7–1.0) 0.0194
Milk 3.5 (2.7–4.3) 2.5 (2.2–2.9) 0.0186 0.5 (0.2–0.9) 0.8 (0.6–1.0) 0.2612 0.2 (0.0–0.4) 0.7 (0.5–0.8) 0.9465
Egg 2.2 (1.5–2.8) 1.2 (0.9–1.4) 0.0007 0.5 (0.2–0.9) 0.5 (0.4–0.6) 0.8182 0.4 (0.1–0.7) 0.4 (0.5–0.8) 0.7748
Wheat 2.1 (1.4–2.7) 1.2 (0.9–1.4) 0.0019 0.4 (0.1–0.7) 0.4 (0.3–0.6) 0.7933 0.3 (0.0–0.5) 0.3 (0.2–0.4) 0.1638
Peanut 1.4 (0.9–1.9) 1.2 (1.0–1.5) 0.5668 0.2 (0.0–0.3) 0.4 (0.3–0.5) 0.1485 0.1 (0.0–0.3) 0.3 (0.2–0.4) 0.6999
Soy 0.8 (0.4–1.2) 0.9 (0.7–1.1) 0.7485 0.3 (0.0–0.5) 0.3 (0.2–0.5) 0.6664 0.2 (0.0–0.4) 0.3 (0.2–0.4) 0.4565
Tree nut 1.6 (1.0–2.1) 1.1 (0.9–1.3) 0.0879 0.2 (0.0–0.4) 0.3 (0.2–0.4) 0.4533 0.2 (0.0–0.3) 0.3 (0.2–0.4) 0.0063
Other foods 10.0 (8.7–11.4) 3.0 (2.7–3.4) 0.0000 1.8 (1.2–2.4) 0.8 (0.6–1.0) 0.0002 1.2 (0.7–1.7) 0.6 (0.5–0.8) 0.9397
  1. Values reported as % (95% CI).
  2. The Two-sample z-test for the Difference Between Proportions was performed to obtain P values.