Association between Latitude and Breast Cancer Incidence in Mainland Australian Women
Table 1
Age-specific annual incidence rates of breast cancer and female population at risk by latitude band; age-standardized annual incidence rates overall and according to IRSD and ARIA.
Incidence per 100 000
Total population at risk
Latitude (°S)
Latitude (°S)
≤27
>27–30
>30–33
>33–36
>36
≤27
>27–30
>30–33
>33–36
>36
Age group (years)
20–29
1.8
1.9
3.7
5.7
6.0
199359
414435
153062
466416
324622
30–39
21.2
24.4
43.6
46.9
45.1
222995
426499
173618
518699
367956
40–49
79.7
86.9
163.2
153.5
153.4
236756
417843
190334
516382
363328
50–59
114.5
139.7
282.1
261.2
246.0
205370
366540
169079
443360
313046
60–69
149.0
181.7
350.3
336.3
302.0
140420
241453
114089
298706
211478
70–79
142.9
185.5
315.9
301.2
301.8
84679
152522
81287
221913
157668
80–89
143.8
189.8
385.1
346.5
344.5
45492
95725
47359
140679
97308
ASR1
76.4
92.5
176.5
167.2
160.2
1135071
2115017
928828
2606155
1835406
IRSD quintile2
1
75.0
72.5
161.5
155.4
142.7
62160
19907
42684
179403
51863
2
76.2
73.6
169.2
163.2
144.1
220759
115111
108646
324572
155188
3
69.3
67.1
180.7
174.5
159.4
148656
442881
201448
553689
388791
4
77.7
75.1
182.8
176.4
145.3
536473
509836
287409
471260
409174
5
81.6
78.6
197.0
190.4
175.1
165400
1027282
288641
1077231
830390
ARIA3
Major city
80.0
84.5
187.2
168.9
162.4
218908
1774388
651472
2166573
1425572
Inner regional
71.0
108.2
179.8
163.6
156.3
375521
256961
193991
285288
349660
Outer regional
76.9
124.7
166.7
163.4
165.4
434993
75341
70788
136897
56678
Remote/very remote
87.2
92.9
176.3
187.2
256.8
105214
8327
12577
17397
3496
ASR: age-standardized rate. 2IRSD: Index of Relative Socioeconomic Disadvantage. 3ARIA: Accessibility/Remoteness Index of Australia.
