Table 2

Prevalence and incidence rates of girls aged 8 for years 2004–2010

Year	Number of girls aged 8 years in GPRD	Number of prevalent cases	Prevalence rate per 1000	95% CI	Number of incident cases	Incidence rate per 1000	95% CI
2004	136 752	109	0.80	0.66 to 0.96	27	0.20	0.14 to 0.28
2005	135 511	112	0.83	0.68 to 0.99	30	0.22	0.15 to 0.31
2006	138 548	112	0.81	0.69 to 0.97	34	0.25	0.17 to 0.39
2007	134 083	125	0.93	0.78 to 1.11	41	0.31	0.22 to 0.41
2008	130 876	107	0.82	0.67 to 0.98	29	0.21	0.14 to 0.29
2009	130 367	106	0.81	0.67 to 0.98	30	0.23	0.16 to 0.32
2010	124 135	101	0.81	0.67 to 0.99	26	0.21	0.14 to 0.30