Table 2

District mean deprivation indices and incidence rates of LCPD per 100 000 children under 15 years in the period 1990–95

	Area
	Liverpool	Knowsley	Sefton
Deprivation index	10.5 (8.8–12.2)	9.4 (7.4–11.3)	4.4 (2.3–6.4)
Rate of LCPD^2-150	8.7 (6.3–11.1)	11.3 (6.7–15.9)	4.4 ( 2.4–9.9)
	R (p value)	R (p value)	R (p value)
Spearman correlation^2-151	0.23 (p = 0.28)	0.45 (p = 0.03)	0.11 (p = 0.47)
All causes death (SMR) males^2-152	118	121	83
Low birth weight (%) (1997)^2-152	8.1	8.5	7.8

↵2-150 Average ward specific rate.
↵2-151 Correlation between deprivation index and rate of Perthes' disease.
↵2-152 The information on SMR and low birth weight is from the Public Health Common Data Set, 1998.