Table 2. Time until the occurrence of symptom after the exposure in infant anaphylaxis.
| Variables, hr | No. (%) |
|---|---|
| Immediate | 69 (19.0) |
| < 0.5 | 116 (32.0) |
| 0.5–2 | 56 (15.4) |
| 2–4 | 18 (5.0) |
| > 4 | 13 (3.6) |
| Unknown | 91 (25.0) |
| Total | 363 (100) |
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