Table 4 Values for 1990 and 2004 are shown for the proportion of patients having full blood counts, electrocardiographs, and x rays with respect to total attendances in each age band (see table 1).

Age (years)	Full blood counts		Electrocardiograph		X rays
	1990	2004	1990	2004	1990	2004
1–10	0.011	0.031	0.001	0.004	0.267	0.291
11–20	0.017	0.112	0.005	0.028	0.328	0.470
21–30	0.026	0.195	0.001	0.068	0.260	0.373
31–40	0.040	0.231	0.026	0.097	0.282	0.382
41–50	0.043	0.262	0.043	0.136	0.282	0.412
51–60	0.081	0.345	0.087	0.215	0.322	0.460
61–70	0.144	0.457	0.160	0.331	0.368	0.503
71–80	0.190	0.593	0.219	0.439	0.434	0.570
81–90	0.210	0.636	0.237	0.501	0.473	0.635
91–100	0.238	0.656	0.206	0.549	0.587	0.672
101–110	0.000	0.500	0.000	0.500	0.500	0.727