Table 2.

Dose-response estimates for malignant intracranial neoplasm mortality overall and by selected factors

	Events	ERR per 100 mGy (95% CI)a
Overall	193	0.1 (<−0.3 to 1.5)
Sex
Men	64	0.9 (<−0.3 to 4.6)
Women	129	−0.3 (<0 to 1.0)
Year of birth
Before 1930	32	0.1 (<−0.3 to 2.4)
1930–39	43	−0.5 (<0 to 4.0)
1940–49	69	−0.2 (<0 to 7.8)
1950–66	49	−0.4 (<0 to 17.0)
Year first worked as a radiologic technologist
Before 1950	19	0.1 (<0 to 1.5)
1930–39	45	0.5 (<0 to 3.0)
1940–49	59	−0.3 (<0 to 3.7)
1950–66	70	2.8 (<0.3 to 9.0)
Work history characteristics
Ever worked with FGI proceduresb	39	0.01 (<0 to 3.6)

CI=confidence intervals; ERR=excess relative risks; FGI=fluoroscopically-guided interventional

^aAdjusted for attained age (continuous) and sex

^bAs reported in the second cohort survey (1994–98)