From: Thyroid cancer risks among medical radiation workers in South Korea, 1996–2015
All | Employment duration ≥1 year | |||
---|---|---|---|---|
Cases | ERRa per 100 mGy (95% CI) | Cases | ERRa per 100 mGy (95% CI) | |
Overall | 827 | 0.04 (−0.35, 0.43) | 737 | 0.03 (−0.35, 0.42) |
Sex | ||||
Male | 309 | 0.07 (−0.38, 0.53) | 291 | 0.06 (−0.39, 0.52) |
Female | 518 | −0.13 (−0.49, 0.23) | 446 | -0.13 (−0.68, 0.43) |
Job title | ||||
Radiologic technologist | 232 | 0.01 (−0.49, 0.52) | 218 | 0.01 (−0.50, 0.51) |
Radiologist | 21 | 0.01 (−0.84, 0.85) | 21 | 0.002 (−0.84, 0.84) |
Dentist | 119 | −0.05 (−4.57, 4.48) | 115 | −0.06 (−4.57, 4.45) |
Dental hygienist | 101 | −1.16 (−4.53, 2.21) | 82 | −1.14 (−5.22, 2.94) |
Nurse | 82 | −0.11 (−1.87, 1.65) | 61 | −0.11 (−1.85, 1.64) |
Doctor | 150 | −0.003 (−1.20, 1.19) | 141 | −0.01 (−1.20, 1.19) |
Others | 122 | 0.03 (−0.69, 0.74) | 99 | 0.03 (−0.69, 0.75) |
Type of medical facility | ||||
Hospital | 291 | 0.02 (−0.47, 0.50) | 251 | −0.004 (−0.48, 0.48) |
Clinic | 229 | 0.004 (−0.67, 0.68) | 218 | −0.01 (−0.68, 0.66) |
Others | 307 | 0.07 (−0.76, 0.91) | 268 | 0.09 (−0.74, 0.93) |
Year of birth | ||||
< 1960 | 94 | 0.004 (−0.46, 0.47) | 91 | 0.004 (−0.47, 0.47) |
1960–1969 | 259 | 0.001 (−0.73, 0.73) | 248 | −0.002 (−0.73, 0.72) |
1970–1979 | 321 | 0.03 (−0.95, 1.01) | 279 | 0.03 (−0.96, 1.03) |
≥ 1980 | 153 | −0.16 (−2.40, 2.08) | 119 | −0.16 (−2.46, 2.15) |
Year of entry | ||||
1996–1999 | 280 | 0.03 (−0.37, 0.42) | 274 | 0.02 (−0.37, 0.42) |
2000–2004 | 239 | −0.02 (−1.28, 1.23) | 218 | −0.001 (−1.29, 1.28) |
2005–2011 | 308 | −0.86 (−3.42, 1.71) | 245 | −0.87 (−3.45, 1.72) |
Age at baseline, years | ||||
< 25 | 167 | 0.14 (−1.38, 1.65) | 149 | 0.16 (−1.40, 1.71) |
25–29 | 227 | −0.10 (−0.88, 0.69) | 195 | −0.10 (−0.88, 0.69) |
30–39 | 295 | −0.02 (−0.71, 0.67) | 264 | −0.03 (−0.71, 0.66) |
≥ 40 | 138 | 0.04 (−0.49, 0.57) | 129 | 0.04 (−0.49, 0.57) |
Duration of employment, years | ||||
< 1 | 90 | −0.45 (−7.12, 6.23) | 0 | – |
1–4 | 294 | −0.08 (−2.12, 1.96) | 294 | −0.18 (−1.64, 1.28) |
5–9 | 210 | −0.07 (−1.44, 1.30) | 210 | −0.17 (−1.44, 1.11) |
≥ 10 | 233 | 0.02 (−0.38, 0.41) | 233 | 0.03 (−0.37, 0.43) |