Analysis of the pre/post 1 January changes in mortality rates for two categories of cardiac causes for the millennium compared with the four previous and two after (control) years
| Cause of death | Pre* control | Post* control | Pre* millennium | Post* millennium | Rate† change difference | p Value‡ |
|---|---|---|---|---|---|---|
| *Expressed as rate per day per 100000 population. †Estimated from a two way analysis of variance with year and pre/post 1 January as factors. ‡For the hypothesis that the difference in rate change is zero. IHD, ischaemic heart disease; CHD, congestive heart disease. | ||||||
| IHD | 0.4419 | 0.4749 | 0.5897 | 0.5427 | 0.0802 | 0.0134 |
| Deaths | 4282 | 4060 | 973 | 790 | ||
| CHD | 0.0189 | 0.0252 | 0.0279 | 0.0309 | 0.0033 | 0.5559 |
| Deaths | 183 | 216 | 46 | 45 | ||