Incidence rates of myocardial infarction (standardised for the age distribution) per 10 000 person-years, and average absolute and relative annual change in incidence with 95% confidence intervals
| Incidence rates | Average annual change in incidence 1977–96 | ||||
|---|---|---|---|---|---|
| 1977–84 | 1985–96 | 1977–96 | Δ incidence | % change in incidence | |
| All drivers | 62.5 (56.7 to 68.3) | 50.4 (46.0 to 54.8) | 55.3 (51.7 to 58.8) | −1.1 (−1.6 to 0.6) | −2.3 (−3.3 to −1.3) |
| Bus drivers | 73.2 (54.0 to 92.3) | 45.1 (36.7 to 53.6) | 56.3 (47.2 to 65.5) | −1.7 (−2.8 to −0.7) | −3.2 (−5.4 to −1.0) |
| Taxi drivers | 75.3 (59.1 to 91.5) | 61.3 (50.7 to 71.8) | 66.9 (57.8 to 75.9) | −0.9 (−2.4 to 0.6) | −2.1 (−4.0 to −0.2) |
| Lorry drivers | 59.2 (52.1 to 66.4) | 48.9 (42.8 to 55.1) | 53.1 (48.4 to 57.7) | −1.1 (−1.5 to −0.6) | −2.2 (−3.5 to −0.9) |
| Other gainfully employed | 45.5 (44.6 to 46.5) | 35.2 (34.5 to 35.9) | 39.3 (38.7 to 39.9) | −0.9 (−1.1 to −0.8) | −2.4 (−2.6 to −2.1) |
| Other manual workers | 50.7 (48.8 to 52.6) | 41.9 (40.5 to 43.3) | 45.4 (44.3 to 46.5) | −0.7 (−1.0 to −0.4) | −1.6 (−2.0 to −1.2) |
| Total (all drivers and other gainfully employed) | 46.3 (45.4 to 47.3) | 35.8 (35.1 to 36.4) | 40.0 (39.4 to 40.6) | −1.0 (−1.1 to −0.8) | −2.4 (−2.6 to −2.2) |