EAR of self-reported cataract and cataract surgery per 104 person-year Gy (and 95% CI), in relation to level of estimated occupational radiation eye-lens dose*
| Level of estimated eye-lens dose | Self-reported cases in person-year table | EAR/PY Gy x 104 (95% CI) | p value (trend) |
| Cataract | |||
| Unrestricted | 11 345 | 94.21 (46.67 to 142.9) | <0.001 |
| <200 mGy | 10 737 | 88.09 (39.12 to 138.1) | <0.001 |
| <100 mGy | 8659 | 81.61 (25.10 to 139.2) | 0.004 |
| <50 mGy | 4914 | 65.10 (−25.54 to 153.8) | 0.157 |
| Cataract surgery | |||
| Unrestricted | 5440 | 12.98 (−26.82† to 56.91) | 0.551 |
| <200 mGy | 5148 | −0.95 (−21.99† to 45.09) | 0.944 |
| <100 mGy | 4133 | −8.13‡ (−33.20† to 22.16) | 0.568‡ |
| <50 mGy | 2508 | −1.78§ (−5.31† to 2.04) | 0.313§ |
*Risks are evaluated using a linear model (expression (1) with γm =0) with factor terms in the underlying background (zero-dose) model for sex, baseline diabetes status, baseline smoking status, baseline numbers of cigarettes per day, baseline age at stopped smoking, and continuously adjusted for ln(age), ln(age)2, ln(age)3, (birth date), (birth date)2, (birth date)3, (time-varying) cumulative UVB radiant exposure (including missingness), baseline BMI (including missingness), BMI2, BMI3, BMI4, BMI5, year (of follow-up), year2, year3, year4, year5, year6. For cataract surgery, the indicated model uses adjustments for sex, baseline diabetes status, baseline smoking status, baseline numbers of cigarettes per day, baseline age at stopped smoking, and continuously adjusted for ln(age), ln(age)2, ln(age)3, ln(age)4, (birth date), (birth date)2, (time-varying) cumulative UVB radiant exposure (including missingness), baseline BMI (including missingness), BMI2, year (of follow-up), year2, year3, year4, year5, year6.
†Wald-based CIs.
‡Weak indications of non-convergence.
§Non-convergence.
BMI, body mass index; UVB, ultraviolet B.