From: The natural course of hereditary angioedema in a Chinese cohort
Patient demographics (N = 103) |  |
 Age, mean (range) (yr) | 37.7 (15–68) |
 Gender, N | |
  Male | 47 |
  Female | 56 |
 Have a drinking history, N | 45 |
  Male | 33 |
  Female | 12 |
 Have a smoking history, N | 29 |
  Male | 25 |
  Female | 4 |
Edema Characteristics | Â |
 Age of first episode, mean (range) (yr) | 17.5 (1–40) |
 Annual Frequency, median (IQR) | |
  Skin | 6 (3–14) |
  Gastrointestinal tract | 2 (0–5) |
   Requirement for emergency treatment | 1 (0–4) |
  Laryngeal | 0.5 (0–2) |
   Requirement for emergency treatment | 0.25 (0–1) |
 Severity score, median (IQR) | 23 (9.5–45) |
 Edema resolution time, median (IQR) (h) | 72 (36–72) |
 Diagnostic delay, median (IQR) (yr) | 11 (6–19.5) |