. 2003 Jul 1;89(1):70–73. doi: 10.1038/sj.bjc.6600973

Table 1. Incidence rate ratios (95% Confidence Intervals) comparing South Asians with non-South Asians by sex, cancer site and age, adjusted for deprivation tertile.

		Age at diagnosis (years)
	All ages	0–14	15–29	30–49	50–74	75+	χ² statistic (P-value) change in IRR for ethnicity by age
Males
All cancers	0.61	2.56	1.18	0.68	0.55	0.59	χ²₄=26.4
	(0.55, 0.68)	(1.33, 4.93)	(0.73, 1.92)	(0.51, 0.90)	(0.48, 0.64)	(0.47, 0.74)	(P=0.0001)
	N_SA=401, N_NSA=5535	N_SA=19, N_SA=17	N_SA=22, N_SA=66	N_SA=59, N_NSA=276	N_SA=223, N_NSA=3097	N_SA=78, N_NSA=2079
Colorectal	0.44			0.94	0.50	0.10	χ²₂=10.96
	(0.32, 0.61)			(0.43, 2.08)	(0.34, 0.73)	(0.02, 0.40)	(P=0.0042)
	N_SA=38, N_NSA=778			N_SA=8, N_NSA=30	N_SA=28, N_NSA=431	N_SA=2, N_NSA=317
Head and neck	1.53			1.08	1.28	3.64	χ²₂=6.8
	(1.09, 2.15)			(0.42, 2.76)	(0.83, 1.96)	(1.87, 7.09)	(P=0.033)
	N_SA=43, N_NSA=197			N_SA=6, N_NSA=17	N_SA=26, N_NSA=136	N_SA=11, N_NSA=44
Lung	0.40			0.53	0.40	0.37	χ²₂=0.41
	(0.31, 0.53)			(0.21, 1.37)	(0.29, 0.55)	(0.20, 0.67)	(P=0.81)
	N_SA=55, N_NSA=1187			N_SA=5, N_NSA=32	N_SA=39, N_NSA=724	N_SA=11, N_NSA=431
Prostate	0.52			-	0.47	0.60	χ²₁=0.45
	(0.37, 0.72)				(0.31, 0.72)	(0.36, 1.00)	(P=0.50)
	N_SA=38, N_NSA=856			N_SA=0, N_NSA=2	N_SA=23, N_NSA=429	N_SA=15, N_NSA=425

Person-years	PY_SA=347 960	PY_SA=107 300	PY_SA=82 050	PY_SA=105 820	PY_SA=48 350	PY_SA=4440
	PY_NSA=1206 950	PY_NSA=245 190	PY_NSA=287 120	PY_NSA=299 330	PY_NSA=304 850	PY_NSA=70 460

Females
All cancers	0.75	1.66	1.15	0.71	0.71	0.77	χ²₄=9.79
	(0.68, 0.82)	(0.89, 3.12)	(0.72, 1.83)	(0.58, 0.86)	(0.62, 0.81)	(0.60, 1.00)	(P=0.044)
	N_SA=461, N_NSA=5731	N_SA=17, N_NSA=23	N_SA=24, N_NSA=69	N_SA=122, N_NSA=567	N_SA=238, N_NSA=2741	N_SA=60, N_NSA=2331
Breast	0.61			0.45	0.71	0.65	χ²₂=4.79
	(0.50, 0.73)			(0.32, 0.63)	(0.56, 0.90)	(0.34, 1.27)	(P=0.091)
	N_SA=121, N_NSA=1477			N_SA=36, N_NSA=273	N_SA=76, N_NSA=768	N_SA=9, N_NSA=436
Colorectal	0.51			1.11	0.39	0.46	χ²₂=4.92
	(0.35, 0.75)			(0.54, 2.28)	(0.23, 0.68)	(0.21, 1.04)	(P=0.086)
	N_SA=30, N_NSA=776			N_SA=10, N_NSA=30	N_SA=14, N_NSA=333	N_SA=6, N_NSA=413
Head and neck	2.97			4.58	1.99	3.48	χ²₂=3.95
	(2.02, 4.37)			(2.46, 8.52)	(1.10, 3.60)	(1.23, 9.83)	(P=0.14)
	N_SA=42, N_NSA=121			N_SA=24, N_NSA=18	N_SA=14, N_NSA=64	N_SA=4, N_NSA=39
Lung	0.32			-	0.31	0.65	χ²₁=2.07
	(0.20, 0.50)			N_SA=0, N_NSA=30	(0.18, 0.53)	(0.29, 1.47)	(P=0.15)
	N_SA=20, N_NSA=637				N_SA=14, N_NSA=372	N_SA=6, N_NSA=235

Person-years	PY_SA=355 200	PY_SA=104 230	PY_SA=93 260	PY_SA=104 580	PY_SA=48 220	PY_SA=4910
	PY_NSA=1311 820	PY_NSA=231 940	PY_NSA=303 080	PY_NSA=301 120	PY_NSA=335 280	PY_NSA=140 400

Number of cancer cases and Person-years for South Asians: N_SA, PY_SA; Number of cancer cases and Person-years for non-South Asians N_NSA, PY_NSA.