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Table 2 Coronary heart disease deaths, mortality rate, rate ratio and 95% confidence intervals for rate ratios by sex, age and birth cohort

From: Patterns of coronary heart disease mortality over the 20th century in England and Wales: Possible plateaus in the rate of decline

Men 30–34 35–39 40–44 45–49 50–54 55–59 60–64 65–69
Deaths
1895–1904 162 851 3113 10759 28186 55648 92238 127362
1905–1914 306 1757 7127 19881 43720 77885 115431 150718
1915–1924 955 3943 11902 28017 51781 78397 106744 128117
1925–1934 1461 5170 13436 26591 43228 58544 72621 81940
Population (000s)
1895–1904 1669 1566 1598 1587 1524 1435 1292 1091
1905–1914 1683 1693 1688 1626 1562 1480 1337 1142
1915–1924 1728 1705 1696 1657 1602 1511 1383 1214
1925–1934 1533 1545 1523 1490 1436 1364 1259 1117
Mortality rate per 100,000
1895–1904 10 54 195 678 1850 3877 7139 11670
1905–1914 18 104 422 1223 2799 5264 8634 13201
1915–1924 55 231 702 1690 3232 5190 7719 10557
1925–1934 95 335 882 1785 3011 4293 5770 7334
95% CI mortality rate per 100,000
1895–1904 (8, 11) (51, 58) (188, 202) (665, 691) (1828, 1872) (3846, 3909) (7094, 7183) (11609, 11730)
1905–1914 (16, 20) (99, 109) (412, 432) (1206, 1240) (2773, 2825) (5228, 5300) (8586, 8681) (13139, 13263)
1915–1924 (52, 59) (224, 239) (689, 714) (1671, 1710) (3205, 3260) (5155, 5226) (7675, 7764) (10502, 10611)
1925–1934 (90, 100) (326, 344) (867, 897) (1764, 1806) (2983, 3039) (4259, 4327) (5730, 5811) (7285, 7382)
Rate ratio
1895–1904 1 1 1 1 1 1 1 1
1905–1914 1.9 1.9 2.2 1.8 1.5 1.4 1.2 1.1
1915–1924 5.7 4.3 3.6 2.5 1.7 1.3 1.1 0.9
1925–1934 9.8 6.2 4.5 2.6 1.6 1.1 0.8 0.6
95% CI rate ratio
1895–1904 - - - - - - - -
1905–1914 (1.7, 2.1) (1.8, 2.0) (2.1, 2.2) (1.8, 1.8) (1.5, 1.5) (1.3, 1.4) (1.2, 1.2) (1.1, 1.1)
1915–1924 (5.3, 6.1) (4.1, 4.4) (3.5, 3.7) (2.5, 2.5) (1.7, 1.8) (1.3, 1.3) (1.1, 1.1) (0.9, 0.9)
1925–1934 (9.3, 10.3) (6.0, 6.3) (4.5, 4.6) (2.6, 2.7) (1.6, 1.6) (1.1, 1.1) (0.8, 0.8) (0.6, 0.6)
Women 30–34 35–39 40–44 45–49 50–54 55–59 60–64 65–69
Deaths
1895–1904 66 264 615 1938 5513 14124 32942 62900
1905–1914 110 317 1006 3082 7750 18683 39662 69061
1915–1924 158 485 1700 4250 9835 20067 37440 59255
1925–1934 233 741 2180 4437 8624 15657 25687 35007
Population (000s)
1895–1904 1739 1709 1669 1648 1607 1554 1480 1366
1905–1914 1773 1750 1710 1670 1640 1595 1516 1394
1915–1924 1756 1752 1722 1702 1665 1609 1534 1430
1925–1934 1541 1539 1527 1503 1466 1419 1359 1270
Mortality rate per 100,000
1895–1904 4 15 37 118 343 909 2226 4603
1905–1914 6 18 59 185 473 1172 2616 4953
1915–1924 9 28 99 250 591 1247 2441 4143
1925–1934 15 48 143 295 588 1103 1890 2757
95% CI mortality rate per 100,000
1895–1904 (3, 5) (14, 17) (34, 40) (112, 123) (334, 352) (894, 924) (2203, 2250) (4568, 4639)
1905–1914 (5, 7) (16, 20) (55, 63) (178, 191) (462, 483) (1155, 1188) (2590, 2641) (4917, 4989)
1915–1924 (8, 10) (25, 30) (94, 103) (242, 257) (579, 603) (1230, 1264) (2417, 2466) (4110, 4176)
1925–1934 (13, 17) (45, 52) (137, 149) (287, 304) (576, 601) (1086, 1120) (1868, 1913) (2729, 2786)
Rate ratio
1895–1904 1 1 1 1 1 1 1 1
1905–1914 1.6 1.2 1.6 1.6 1.4 1.3 1.2 1.1
1915–1924 2.4 1.8 2.7 2.1 1.7 1.4 1.1 0.9
1925–1934 4.0 3.1 3.9 2.5 1.7 1.2 0.8 0.6
95% CI rate ratio
1895–1904 - - - - - - - -
1905–1914 (1.3, 2.0) (1.0, 1.3) (1.5, 1.7) (1.5, 1.6) (1.3, 1.4) (1.3, 1.3) (1.2, 1.2) (1.1, 1.1)
1915–1924 (2.0, 2.8) (1.6, 2.0) (2.6, 2.8) (2.1, 2.2) (1.7, 1.8) (1.4, 1.4) (1.1, 1.1) (0.9, 0.9)
1925–1934 (3.5, 4.5) (2.9, 3.4) (3.7, 4.0) (2.4, 2.6) (1.7, 1.8) (1.2, 1.2) (0.8, 0.9) (0.6, 0.6)
  1. * Base for rate ratio is the age-stratified mortality rate for the 1895–1904 cohort.
  2. † 95% confidence intervals constructed assuming Poisson distribution of death count variable (Altman, 2000)