Table 3 Age-specific incidence rates of breast cancer by birth year in Chinese women
From: Incidence of breast cancer in Chinese women exposed to the 1959–1961 great Chinese famine
< 50 years old | 50~52 years old | ≥ 53 years old | |||||||
|---|---|---|---|---|---|---|---|---|---|
PYs | No. of cases | Incidence (95%CI) | PYs | No. of cases | Incidence (95%CI) | PYs | No. of cases | Incidence (95%CI) | |
Cancer in situ | |||||||||
By birth year | |||||||||
1955–1958 | 172 | 0 | 0.0 | 16,415 | 3 | 18.3 (5.9, 56.6) | 119,986 | 15 | 12.5 (7.5, 20.7) |
1959–1962 | 17,395 | 5 | 28.7 (11.9, 68.9) | 42,818 | 4 | 9.3 (3.5, 24.8) | 28,431 | 8 | 28.1 (14.0, 56.0) |
1963–1966 | 62,302 | 6 | 9.6 (4.3, 21.4) | 14,497 | 2 | 13.8 (3.4, 54.9) | – | – | – |
Overall | 79,870 | 11 | 13.8 (7.6, 24.8) | 73,731 | 9 | 12.2 (6.3, 23.4) | 148,418 | 23 | 15.5 (10.3, 23.2) |
Invasive cancer | |||||||||
By birth year | |||||||||
1955–1958 | 172 | 0 | 0 | 16,418 | 18 | 109.6 (69.1, 174.0) | 120,030 | 132 | 109.9 (92.7, 130.4) |
1959–1962 | 17,399 | 23 | 132.2 (87.8, 198.9) | 42,838 | 53 | 123.7 (94.5, 161.9) | 28,453 | 26 | 91.3 (62.2, 134.2) |
1963–1966 | 62,314 | 66 | 105.9 (83.2, 134.8) | 14,503 | 12 | 82.7 (46.9, 145.7) | – | – | – |
Overall | 79,886 | 89 | 111.4 (90.5, 137.1) | 73,760 | 83 | 112.5 (90.7, 139.5) | 148,483 | 158 | 106.4 (91.0, 124.4) |
All breast cancer | |||||||||
By birth year | |||||||||
1955–1958 | 172 | 0 | 0 | 16,416 | 21 | 127.9 (83.4, 196.2) | 119,987 | 147 | 122.5 (104.2, 144.0) |
1959–1962 | 17,395 | 28 | 160.9 (111.1, 233.1) | 42,818 | 57 | 133.1 (102.7, 172.6) | 28,431 | 34 | 119.6 (85.5, 167.4) |
1963–1966 | 62,302 | 72 | 115.6 (91.7, 145.6) | 14,497 | 14 | 96.6 (57.2, 163.1) | – | – | – |
Overall | 79,870 | 100 | 125.2 (102.9, 152.3) | 73,731 | 92 | 124.8 (101.7, 153.1) | 148,418 | 181 | 121.9 (105.4, 141.1) |