Table 2. Incidence rate ratios (95% confidence intervals) comparing incidence rates for 1995–1999 with 1990–1994, by ethnicity, sex and cancer site adjusted for age and deprivation tertile.

	Ethnicity
	South Asians	Non-South Asians	χ2 statistic (P-value) for change in IRR between time periods by ethnicity
Males
All cancers	1.28	0.95	χ21=8.01 (P=0.0047)
	(1.05, 1.56)	(0.90, 1.00)
	N90–94=176, N95–99=225	N90–94=2834, N95–99=2701
Colorectal	1.24	1.03	χ21=0.31 (P=0.58)
	(0.65, 2.34)	(0.89, 1.18)
	N90–94=17, N95–99=21	N90–94=384, N95–99=394
Head and neck	0.95	0.88	χ21=0.06 (P=0.80)
	(0.52, 1.74)	(0.66, 1.16)
	N90–94=22, N95–99=21	N90–94=105, N95–99=92
Lung	1.39	0.81	χ21=3.82 (P=0.051)
	(0.81, 2.38)	(0.72, 0.91)
	N90–94=23, N95–99=32	N90–94=656, N95–99=531
Prostate	1.71	0.93	χ21=3.27 (P=0.071)
	(0.89, 3.31)	(0.82, 1.07)
	N90–94=14, N95–99=24	N90–94=443, N95–99=413
Females
All cancers	1.24	0.91	χ21=10.0 (P=0.0015)
	(1.03, 1.49)	(0.86, 0.96)
	N90–94=206, N95–99=255	N90–94=3000, N95–99=2731
Breast	1.37	0.81	χ21=7.70 (P=0.0055)
	(0.96, 1.97)	(0.73, 0.90)
	N90–94=70, N95–99=51	N90–94=816, N95–99=661
Colorectal	2.33	0.95	χ21=5.37 (P=0.020)
	(1.07, 5.09)	(0.83, 1.09)
	N90–94=9, N95–99=21	N90–94=398, N95–99=378
Head and neck	1.33	1.33	χ21=0.001 (P=0.99)
	(0.72, 2.46)	(0.93, 1.90)
	N90–94=18, N95–99=24	N90–94=52, N95–99=69
Lung	1.50	1.11	χ21=0.43 (P=0.51)
	(0.61, 3.67)	(0.94, 1.30)
	N90–94=8, N95–99=12	N90–94=304, N95–99=333

Number of cancer cases for 1990–1994: N_90–94; Number of cancer cases for 1995–1999 N_95–99. Person-years assumed same for 1990–1999.