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).
ERR models for stomach cancer adjusted for attained age, and for all other endpoints adjusted for age at exposure and attained age.
P value of improvement in fit of linear-quadratic model vs linear model.
Using colon dose.
Using lung dose.
Using stomach dose.
Using red bone marrow dose.