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Table 2 An overview of participation in the oral food challenge (OFC)

From: Prevalence of sensitization to food allergens and challenge proven food allergy in patients visiting allergy centers in Rawalpindi and Islamabad, Pakistan

Total allergy patients (n = 689)

Patient history (N)

Skin Prick Test (SPT) results (N)

Eligible for OFC (N)

Not eligible for OFC (N)

Positive

341

Positive (238)

54

184 [An (9), SA (98), CvP (34), CP (20) and R (23)]

Negative (103)

36

67

Negative

348

Positive (32)

11

21 [SA (2), CvP (9), CP (3) and R (7)]

Negative (316)

No food allergy

  1. An anaphylaxis; SA severe asthma; CvP cardiovascular patients/β-blocker users; CP carrying pregnancy; R refusal
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