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. Author manuscript; available in PMC: 2023 Dec 1.
Published in final edited form as: Radiat Res. 2022 Dec 1;198(6):582–589. doi: 10.1667/RADE-22-00108.1

TABLE 3.

Maximum Likelihood Fits of Stratified Linear and Linear-Quadratic Excess Relative Rate (ERR) Models in Dose to LSS Mortality Data of Ozasa et al. (7) for Males and Females Separately, Restricted to Unadjusted Weighted Colon Dose <3 Gy, with Full Follow-up (from 1950–2003) or with Partial Follow-up (1961–2003)a

Linear model
Linear-quadratic model
Endpoint Sex ERR/Gy (+95% CI) ERR/Gy (+95% CI) ERR/Gy2 (+95% CI) P valueb
Under 3 Gy colon dose, all years of follow-up (1950–2003), adjusted for age at exposure and attained age
All solid cancerc Males 0.687 (0.434, 0.997)   0.557 (0.049, 1.093)   0.088 (−0.193, 0.422)   0.554
Females 1.313 (0.996, 1.678)   1.046 (0.556, 1.595)   0.208 (−0.111, 0.555)   0.205
Lungd Males 1.452 (0.451, 3.330)   1.917 (0.253, 4.787) −0.291 (−1.281, 0.783)   0.499
Females 1.022 (0.256, 2.581)   1.159 (0.250, 3.156) −0.092 (−0.679, 0.461)   0.670
Stomache Males 0.241 (0.004, 0.625) −0.125 (−0.469, 0.490)   0.118 (0.003, 0.422)   0.095
Females 0.993 (0.509, 1.621)   0.765 (0.038, 1.698)   0.150 (−0.291, 0.632)   0.500
All solid excluding lung, stomach, breastc Males 0.816 (0.443, 1.305)   0.508 (−0.188, 1.273)   0.216 (−0.184, 0.740)   0.300
Females 1.015 (0.625, 1.463)   0.389 (−0.254, 1.119)   0.468 (0.016, 0.986)   0.042
Leukemiaf Males 4.758 (2.461, 8.312)   0.394 (−1.263, 3.495)   3.704 (1.430, 7.166) <0.001
Females 5.134 (2.713, 8.971) −0.002 (−1.490, 2.659)   4.280 (2.018, 7.797) <0.001
All circulatory diseased Males 0.163 (0.043, 0.324)   0.093 (−0.185, 0.358)   0.039 (−0.070, 0.197)   0.479
Females 0.273 (0.090, 0.502)   0.312 (0.067, 0.680) −0.020 (−0.159, 0.095)   0.729
Under 3 Gy colon dose, later years of follow-up (1961–2003), adjusted for age at exposure and attained age
All solid cancerc Males 0.883 (0.550, 1.307)   0.809 (0.197, 1.499)   0.052 (−0.295, 0.464)   0.777
Females 1.508 (1.090, 2.001)   1.254 (0.663, 1.952)   0.196 (−0.180, 0.607)   0.310
Lungd Males 1.397 (0.401, 3.323)   1.693 (−0.027, 4.567) −0.184 (−1.176, 0.997)   0.676
Females 1.225 (0.275, 3.297)   1.399 (0.269, 4.061) −0.110 (−0.870, 0.567)   0.672
Stomache Males 0.312 (0.000, 0.819) −0.092 (−0.498, 0.765)   0.076 (0.000, 0.462)   0.138
Females 1.132 (0.520, 1.971)   0.871 (−0.041, 2.096)   0.171 (−0.396, 0.792)   0.544
All solid excluding lung, stomach, breastc Males 1.047 (0.543, 1.741)   0.827 (−0.047, 1.894)   0.150 (−0.366, 0.804)   0.569
Females 1.171 (0.618, 1.825)   0.611 (−0.114, 1.564)   0.399 (−0.114, 0.997)   0.127
Leukemiaf Males 3.410 (0.523, 7.020)   0.474 (−1.408, 4.325)   2.506 (0.168, 6.210)   0.034
Females 5.414 (2.459, 11.144) −0.495 (−2.849, 3.067)   4.933 (1.946, 10.146) <0.001
All circulatory diseased Males 0.264 (0.076, 0.517)   0.209 (−0.151, 0.588)   0.035 (−0.118, 0.259)   0.662
Females 0.310 (0.081, 0.626)   0.401 (0.100, 0.874) −0.059 (−0.227, 0.083)   0.377

Notes. Profile likelihood confidence intervals (CI) are given for the linear and quadratic coefficients. Models adjusted for age at exposure and attained agea. Strata defined by city, sex, ground distance category, attained age category, age at exposure category, calendar period, AHS group (and summed/averaged over ground distance).

a

ERR models for stomach cancer adjusted for attained age, and for all other endpoints adjusted for age at exposure and attained age.

b

P value of improvement in fit of linear-quadratic model vs linear model.

c

Using colon dose.

d

Using lung dose.

e

Using stomach dose.

f

Using red bone marrow dose.