Table 2

Relation between child and mid-parental height (MPH) standard deviation score (SDS) in children below second centile

Difference between child’s and MPH SDS		Crude			Adjusted for regression to the mean
Difference between child’s and MPH SDS		Number	%		Number	%
Within 90% range2-150	8	62		3	23
Within 98% range2-151	4	31		7	54
Ouside 98% range	1	8		3	23
Total	13			13

↵2-150 Unadjusted, 90% limits = MPH SDS ± 1.5 SDS; adjusted, 90% limits = expected height SDS ± 1.4 SDS.
↵2-151 Unadjusted, 98% limits = MPH SDS ± 2 SDS; adjusted, 98% limits = expected height SDS ± 2 SDS.