Table 3.

 Positive skin prick test wheal remeasurements (n=119). Values are intraclass correlation coefficients (95% confidence intervals)

Antigen	Longest diameter	Orthogonal diameter
House dust mite	0.96 (0.95 to 0.98)	0.96 (0.94 to 0.97)
Cat	0.93 (0.90 to 0.95)	0.86 (0.81 to 0.94)
Birch pollen	0.94 (0.91 to 0.95)	0.97 (0.96 to 0.98)
Mixed northern grasses	0.95 (0.92 to 0.96)	0.98 (0.98 to 0.99)
Alternaria	0.94 (0.91 to 0.96)	0.92 (0.89 to 0.95)