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Table 3 Peanut-Allergic Siblings of Index Children

From: Should Younger Siblings of Peanut-Allergic Children Be Assessed by an Allergist before Being Fed Peanut?

Siblings of

Index Child Sibling from Table 2

Confirmed Diagnosis with Allergist*

Evidence of IgE SPT or capRast

Cases

   

1

6

Yes

capRast > 100 kUa/L

2

7

Yes

capRast > 100 kUa/L

3

9

Yes

capRast > 100 kUa/L

4

17

Yes

SPT mean wheal diameter 21 mm

Controls

   

1

NA

Yes

SPT mean wheal diameter 21 mm

2

NA

Yes

capRast > 100 kUa/L

3

NA

Yes

Large SPT+ (no measurement recorded)

4

NA

Yes

SPT mean wheal diameter 8 mm

5

NA

Yes

capRast = 90.3 kUa/L

6

NA

Yes

capRast = 22.8 kUa/L

7

NA

Yes

SPT mean wheal diameter 14 mm

8

NA

Yes

SPT: 4+ reaction (pseudopods)

9

NA

No

Not confirmed

10

NA

Yes

capRast > 100 kUa/L

11

NA

Yes

capRast = 2.3 kUa/L; no oral challenge

  1. capRAST = FEIA for peanut-specific IgE; NA = not available; SPT = skin-prick test.
  2. *Allergist diagnosis included a definitive history of an adverse reaction to ingestion of peanut and evidence (in vivo or in vitro) of IgE toward peanut. Only control 9 was not confirmed.