An observational study to assess changes in social inequality in smoking-attributable upper aero digestive tract cancer mortality among Canadian males between 1986 and 2001

Table 1 Annual death rates, per 100,000 men aged 35–69 years, due to UADT cancer, attributed to smoking or not, by neighborhood income quintile, together with the stratum specific number of deaths due to lung cancer and UADT cancer and the population count, respectively

	Overall	Lowest ^ǂ	Middle ^ǂ	Highest ^ǂ
1986
Yes*	21.7	42.6	20.1	12.8
No**	10.3	13.7	9.7	8.0
Total	32.0	56.3	29.8	20.8
Total UADT cancer deaths	683	258	258	167
Total lung cancer deaths	2744	830	1117	797
Population	2789815	532395	1091295	1166125
1991
Yes*	18.8	32.5	20.1	10.9
No**	9.6	11.4	10.2	7.5
Total	28.5	43.9	30.3	18.4
Total UADT cancer deaths	680	208	306	166
Total lung cancer deaths	2881	830	1237	814
Population	3244930	593665	1283315	1367950
1996
Yes*	15.4	26.7	16.9	9.0
No**	9.7	11.4	10.6	7.3
Total	25.1	38.1	27.5	16.3
Total UADT cancer deaths	665	188	298	179
Total lung cancer deaths	2608	696	1092	820
Population	3679785	679915	1431225	1568645
2001
Yes*	12.8	24.5	12.8	8.2
No**	9.6	11.0	9.4	8.6
Total	22.4	35.5	22.2	16.8
Total UADT cancer deaths	676	187	269	220
Total lung cancer deaths	2487	673	1041	773
Population	4205285	778220	1628620	1798445

*UADT cancer mortality attributable to smoking, ** not attributable to smoking.
Average lung cancer rates for 35–69 year old male smokers of CPS II study was 22.2 per 100,000 and for non-smokers the rates were 6 per 100,000.
^ǂ Neighborhood income quintile divided in lowest = poorest, middle = poorer + middle, and highest = richer + richest.

ISSN: 1471-2458