McIlwaine W J, Donnelly M D, Chivers A T, Evans A E, Elwood J H
Int J Epidemiol. 1985 Dec;14(4):560-5. doi: 10.1093/ije/14.4.560.
All death certificates over a one-year period (20 July 1981 to 19 July 1982) for residents of Belfast were examined in order to ascertain those due to ischaemic heart disease. Some 1654 were included for further investigation of which 1288 (78%) were coded by ICD Nos 410-414 (9th revision). Additional data were obtained from hospital records, ECGs, cardiac enzyme measurements, post mortems, general practitioners and from relatives of the deceased. Some 108 deaths coded by 410-414 and 223 deaths coded by other rubrics were eventually excluded. For people aged less than 70 years the net effect of excluding these deaths and including some coded under rubrics other than 410-414 was very small representing a change from 498 to 496 deaths (-0.4%). For people aged 70 years and above the net effect also was small, namely an increase from 790 to 827 (+4.4%). We conclude that the total number of deaths recorded as being due to IHD in Belfast was reasonably accurate. While 76% of deaths registered under ICD Nos 410-414 had been coded by ICD No 410 (acute myocardial infarction) only 19% of all deaths due to IHD could be classified as definite myocardial infarction using World Health Organization criteria.
对贝尔法斯特居民在一年期间（1981年7月20日至1982年7月19日）的所有死亡证明进行了检查，以确定那些因缺血性心脏病导致的死亡。约1654份证明被纳入进一步调查，其中1288份（78%）按照国际疾病分类第九版的410 - 414编码。还从医院记录、心电图、心肌酶测量、尸检、全科医生以及死者亲属处获得了额外数据。最终排除了约108份按照410 - 414编码的死亡证明以及223份按照其他类别编码的死亡证明。对于年龄小于70岁的人群，排除这些死亡证明以及纳入一些按照410 - 414以外类别编码的证明，其净效应非常小，死亡人数从498例变为496例（-0.4%）。对于70岁及以上的人群，净效应同样很小，即从790例增加到827例（+4.4%）。我们得出结论，在贝尔法斯特记录的因缺血性心脏病导致的死亡总数相当准确。虽然在按照国际疾病分类410 - 414编码登记的死亡中，76%是按照国际疾病分类410（急性心肌梗死）编码的，但根据世界卫生组织标准，在所有因缺血性心脏病导致的死亡中，只有19%可归类为明确的心肌梗死。
