TABLE 2—

PMRs and PCMRs by Quartiles and Quantiles of Cumulative External Radiation Dose for Mesothelioma: US Transuranium and Uranium Registries

Quartile	External Radiation Dose, mSv, Range	Total, No.	Mesothelioma, No.	PMR (95% CI)	PCMR (95% CI)
1	0.17–23.84	74	1	61.83 (1.57, 344.52)	36.16 (0.03, 242)
2	23.85–75.16	73	1	57.43 (1.45, 319.98)	47.07 (0.02, 225.31)
3	75.17–187.74	73	2	74.46 (9.02, 268.97)	51.35 (7.01, 213.10)
4	187.75–1829.70	73	3	83.31 (17.18, 243.48)	67.73 (15.71, 204.31)

Note. CI = confidence interval; PCMR = proportionate cancer mortality ratio; PMR = proportionate mortality ratio.