. Author manuscript; available in PMC: 2015 Mar 24.

Published in final edited form as: Ann Surg Oncol. 2012 Jan 7;19(6):1887–1896. doi: 10.1245/s10434-011-2193-2

TABLE 5.

Risk of renal cancers after primary thyroid cancer, stratified by treatment for thyroid cancer

Treatment	2–11 months		12–59 months		60–119 months		120+ months		Total
Treatment	No. observed cases	SIR (95% CI)	No. observed cases	SIR (95% CI)	No. observed cases	SIR (95% CI)	No. observed cases	SIR (95% CI)	No. observed cases	SIR (95% CI)
None	13	4.75 (2.53–8.13)^*	22	1.86 (1.17–2.82)^*	23	1.84 (1.16–2.75)^*	65	1.89 (1.46–2.42)^*	123	2.0 (1.67–2.39)^*
Radioisotopes	1	0.58 (0.01–3.25)	19	2.81 (1.69–4.38)^*	11	1.92 (0.96–3.44)	12	2.66 (1.38–4.65)^*	43	2.30 (1.66–3.1)^*
Recommended, unknown whether administered	0	0 (0–61.91)	0	0 (0–16.06)	1	4.62 (0.12–25.74)	1	2.76 (0.07–15.36)	2	2.3 (0.28–8.32)
Other radiation	2	3.29 (0.4–11.9)	6	2.54(0.93–5.53)	8	3.09 (1.33–6.08)^*	22	2.90 (1.82–4.39)^*	38	2.89 (2.05–3.97)^*

P <0.05