Table 3
Age-standardized incidence rates (ASIRs) for squamous-cell carcinoma, adenocarcinoma and small-cell carcinoma per 100,000 person years at risk, rate ratios (RR), and rate differences (RD), by selected socioeconomic status (SES) characteristics, 1991 Canadian Census Cohort members aged 25 or older at baseline, Canada, 1991 to 2003

Table 3
Age-standardized incidence rates (ASIRs) for squamous cell carcinoma, adenocarcinoma and small-cell carcinoma per 100,000 person years at risk, rate ratios (RR), and rate differences (RD), by selected socioeconomic status (SES) characteristics, 1991 Canadian Census Cohort members aged 25 or older at baseline, Canada, 1991 to 2003
Table summary
This table displays the results of Age-standardized incidence rates (ASIRs) for squamous cell carcinoma. The information is grouped by Lung cancer type and SES characteristics (appearing as row headers), Number of cases, ASIR, 95% confidence interval, RR and RD (appearing as column headers).
Lung cancer type and SES characteristics Number of cases ASIR 95% confidence interval RR 95% confidence interval RD 95% confidence interval
from to from to from to
Squamous-cell carcinoma  
Educational attainment  
Less than secondary graduation 3,799 23.4 22.6 24.2 3.3 2.9 3.9 16.3 15.0 17.6
Secondary graduation 1,530 15.7 15.0 16.5 2.2 1.9 2.6 8.7 7.4 10.0
At least some postsecondary 323 9.0 8.1 10.1 1.3 1.1 1.5 2.0 0.6 3.4
University degreeNote † 191 7.0 6.1 8.1 1.0 Note ...: not applicable Note ...: not applicable 0 Note ...: not applicable Note ...: not applicable
Income adequacy quintile (Q)  
Q1 (lowest) 1,471 24.2 23.0 25.6 2.1 1.9 2.3 12.7 11.1 14.2
Q2 1,495 21.4 20.3 22.6 1.9 1.7 2.0 9.8 8.4 11.2
Q3 1,094 17.8 16.8 18.9 1.5 1.4 1.7 6.3 4.9 7.6
Q4 964 15.5 14.5 16.5 1.3 1.2 1.5 4.0 2.7 5.3
Q5 (highest)Note † 819 11.6 10.8 12.4 1.0 Note ...: not applicable Note ...: not applicable 0 Note ...: not applicable 0
Occupation  
ManagerialNote † 143 7.0 5.6 8.7 0.5 0.4 0.6 -7.2 -10 -4.4
Professional 259 14.1 12.0 16.7 1.0 Note ...: not applicable Note ...: not applicable 0 Note ...: not applicable Note ...: not applicable
Skilled/Technical/Supervisory 885 15.5 14.3 16.8 1.1 0.9 1.3 1.3 -1.3 4
Semi-skilled 883 17.0 15.5 18.7 1.2 1.0 1.5 2.9 0 5.7
Unskilled 447 22.7 19.9 25.8 1.6 1.3 2.0 8.5 4.8 12.3
No occupation 3,226 20.6 19.6 21.6 1.5 1.2 1.7 6.5 3.9 9
Adenocarcinoma  
Educational attainment  
Less than secondary graduation 3,864 26.3 25.5 27.2 2.0 1.8 2.2 13.2 11.6 14.8
Secondary graduation 2,295 22.5 21.6 23.4 1.7 1.5 1.9 9.3 7.7 11.0
At least some postsecondary 658 16.9 15.6 18.2 1.3 1.1 1.5 3.7 1.8 5.6
University degreeNote † 405 13.2 11.9 14.6 1.0 Note ...: not applicable Note ...: not applicable 0.0 Note ...: not applicable Note ...: not applicable
Income adequacy quintile (Q)  
Q1 (lowest) 1,500 26.8 25.4 28.3 1.4 1.3 1.6 8.3 6.5 10.0
Q2 1,598 24.7 23.4 26 1.3 1.2 1.4 6.1 4.5 7.8
Q3 1,405 22.7 21.5 23.9 1.2 1.1 1.3 4.1 2.6 5.7
Q4 1,340 20.5 19.4 21.7 1.1 1.0 1.2 2.0 0.4 3.5
Q5 (highest)Note † 1,379 18.6 17.6 19.6 1.0 Note ...: not applicable Note ...: not applicable 0.0 Note ...: not applicable Note ...: not applicable
Occupation  
ManagerialNote † 372 16.4 14.2 19 0.8 0.7 1.0 -4.1 -7.8 7.0
Professional 435 20.5 17.9 23.5 1.0 Note ...: not applicable Note ...: not applicable 0.0 Note ...: not applicable Note ...: not applicable
Skilled/Technical/Supervisory 1,243 19.5 18.3 20.9 1.0 0.8 1.1 -1.0 -4.0 15.5
Semi-skilled 1,386 23.3 21.6 25.2 1.1 1.0 1.3 2.8 -0.5 17.0
Unskilled 573 25.5 23 28.3 1.2 1.0 1.5 5.0 1.1 22.7
No occupation 3,213 27 25.7 28.4 1.3 1.1 1.5 6.5 3.4 20.6
Small-cell carcinoma  
Educational attainment  
Less than secondary graduation 2,012 13.2 12.6 13.8 2.5 2.1 3.0 8.0 6.9 9.0
Secondary graduation 998 10 9.4 10.7 1.9 1.6 2.3 4.8 3.8 5.9
At least some postsecondary 217 5.8 5.1 6.7 1.1 0.9 1.4 0.6 -0.5 1.8
University degreeNote † 143 5.2 4.4 6.1 1.0 Note ...: not applicable Note ...: not applicable 0.0 Note ...: not applicable Note ...: not applicable
Income adequacy quintile (Q)  
Q1 (lowest) 853 16.4 14.9 13.9 2.0 1.8 2.2 7.5 6.2 8.7
Q2 773 12.7 11.8 11 1.6 1.4 1.8 4.3 3.2 5.4
Q3 652 9.8 10.6 9.8 1.4 1.3 1.6 3.1 2.1 4.2
Q4 541 7.8 8.5 7.8 1.1 1.0 1.3 1.0 0.0 1.9
Q5 (highest)Note † 551 7.8 7.5 6.9 1.0 Note ...: not applicable Note ...: not applicable 0.0 Note ...: not applicable Note ...: not applicable
Occupation  
ManagerialNote † 169 5.5 4.2 7.2 0.7 0.5 0.9 -2.7 -5.0 -0.4
Professional 106 8.3 6.6 10.3 1.0 Note ...: not applicable Note ...: not applicable 0.0 Note ...: not applicable Note ...: not applicable
Skilled/Technical/Supervisory 550 9 8.1 10 1.1 0.9 1.4 0.7 -1.3 2.8
Semi-skilled 569 9.6 8.6 10.7 1.2 0.9 1.5 1.3 -0.7 3.4
Unskilled 298 12.7 11.1 14.6 1.5 1.2 2.0 4.4 1.9 6.9
No occupation 1,678 12.7 11.8 13.6 1.5 1.2 1.9 4.4 2.4 6.4
... not applicable
Note †

reference group (RR = 1.00 and RD = 0.0)

Return to note † referrer

Notes: Reference populationfor age-standardization was from 1991 Canadian population. Because of small counts, other lung cancer histologies were excluded from analysis.
Source: 1991 Canadian Census Cohort: mortality and cancer follow-up.
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