“oO ot Cases Observed Subject of study 11) Patients (most between ages Expected Follow-up Dose No ot Formof in exposed if not time (yr) (Ro or radst persons” cancer group” exposed* 10-40 100-2000 LS Thyroid 5 Ot 10-35 1500-2000 222 Thyroid 0 10-40) treated with x-rays for benign lesions in neck, mainly tor tuberculous adenitis (treated between 1920-50) Hantord et. al.. 1962 (158) 12. Patients, ages 20-70. treated with x-rays to thyroid for bemegen disorders DeLawter und Winship, 1963 (150) 13. Hyperthyroid patients treated with "11 (treated 1946-64, followup 3-2] through June 1967) Saenger 7-15 rads to bone Marrow (9 mO1 hav) et ul., 1968 (250) 14.370 (119.000 Leukemta 1 [1.9 Leukemia 16 11.4 person yr al risk) Comparison group treated hysurgery 10.731 and not given ''' | Saenger et al., 1968 (250) , (114,060 person yr at risk) 14. Hyperthyroid patients, apes 20-60, treated with x-rays (treated §-15 Nol given ix? Thyroid (probable) Multiple benign I thyroid nodules 7 1946-53. follow-up 1959-61) Sheline et al., 1962 (178) 1S. Patients treated with x-rays to 5-28 spine for ankylosing spondylitis (treated 1935-54, lollow-up to Jan. 1963). Court Brown and Doll, 1965 (242) Marrow approx 7 ot spinal dose to other sensitive areas 16. Patients treated with x-rays for cancer ot the cervix Hutchison, 4-8 (317) 18. American radiologists. Warren and Through 196% (243) 17. American radiologists (died 19481964) Lewis, 1970 (244) Lombard, 1966. (245) 19. American radiologists. Seltser and Sartwell, 1965 (246) 750-2500 to spinal <4 (697) Through 1964 300-1500 av to hone marrow 14.302 60 Aplastic anemta Cancer of heavily Irradiated sites (alter 6 yr} 27,7493 (S712 1 Leukemia Lymphatic person yr} §30 deaths 5.982 1960 1935-58 Leukemia (165.631 man vr atrisk) 3.521 (48.895 16 “00 4 malignancy Leukemia Multiple myeloma 6.8 6] 107 5.1 6 13 s 63 391 1 ol Aplastic anemia 4 23 1940-44 4 0.5 1945-49 1950-54 1984-60 7 6 7 8&6 1.26 2.05 Leukemia Ages 35-49 person yr} Leukemia Other cancer Total deaths 2 1.9 9 79 73 61.5 8 54 339 1.1 32 2745S Ages 50-64 Leukemia Other cancer Total deaths Ages 65-79 Leukemia Other cancer 20. Radium dial painters and others who ingested radium and 21 More than 40 . thorium. Evans, 1967 (251) Urantum miners exposed to radon gas and decay products, fallow- 420 3.415 Total deaths Bone Lung 9 72 4.7 48 438 295 No significant chrucal signs of mahgnancies for body burdens <0.5 pCi 77° Ra 22 $7 up 1950-63 Wagoner et al.. 1965 (234) *This refers fo the number of individuals at risk unless otherwise specified >The information needed to determine the number of cases 1s obtained hy either following a designated study population or by working back from a review of all death certificates in a defined geographical atea. ©The numbers in this column are based on available statistical data for unexposed populations I The term person-rads pertains to the dose impurted to 4 population and is equal to the sum of the doses incurred by the individuals in the population. This figure is based on a systematic sampling of the population rather than a review of all the records 'The term person years at risk is the sum of the number of years in which the disease could develop in each member of the group - 135 -