Table 2 Characteristics of studies reporting secondary outcome (intradermal testing)
Study, year | Country | Setting | Sample size | Number of males | Age range, years | Nasal provocation positive | Nasal provocation negative | Wheal size cut-off (mms) | Sensitivity, % | Specificity, % | Allergen extracts |
|---|---|---|---|---|---|---|---|---|---|---|---|
Krouse et al. [14] | USA | Hospital | 37 | NR | NR (18–70) | 2 | 19 | ≥3a | 50.0 | 100.0 | Timothy grass |
Krouse et al. [14] | USA | Hospital | 44 | NR | NR (18–70) | 11 | 16 | ≥3a | 27.0 | 69.0 | Alternaria |
Gungor et al. [15] | USA | Unclear | 62 | NR | ≥18 | 34 | 28 | ≥2 | 79.4 | 67.9 | Ragweed |
Wood et al. [24] | USA | Hospital | 120 | 22 (18) | 32 (18–65) | 10 | 29 | ≥6 | 60.0 | 68.9 | Cat |