RAVENHOLT R T
Calif Med. 1964 Nov;101(5):341-7.
Records of deaths among California chiropractors in a five-year period were studied to ascertain causes of death and other characteristics-especially because of the author's interest in ascertaining whether leukemia and other deleterious effects of ionizing radiation could be observed among this occupationally-exposed group. The findings do not permit a conclusion that the mortality experience of California chiropractors differs substantially from that of a similar population of non-chiropractors, but the finding of 1.68 times the expected leukemia mortality is in accord with previous studies which show increased leukemic mortality among populations which have had unusually great exposure to ionizing radiation. The finding that only 3 per cent of the death certificates of California chiropractors were signed by other chiropractors, and that 56 per cent were signed by doctors of medicine indicates that very few chiropractors seek diagnosis and treatment from other chiropractors when seriously or terminally ill.
对加利福尼亚州脊椎按摩师在五年期间的死亡记录进行了研究，以确定死亡原因及其他特征，特别是因为作者有兴趣确定在这个职业暴露群体中是否能观察到白血病和电离辐射的其他有害影响。研究结果无法得出加利福尼亚州脊椎按摩师的死亡率与类似的非脊椎按摩师群体有显著差异的结论，但白血病死亡率是预期的1.68倍这一发现与之前的研究一致，之前的研究表明，在遭受异常大量电离辐射的人群中白血病死亡率会增加。加利福尼亚州脊椎按摩师的死亡证明只有3%由其他脊椎按摩师签署，而56%由医学博士签署，这一发现表明，很少有脊椎按摩师在身患重病或绝症时会寻求其他脊椎按摩师的诊断和治疗。
