TABLE 1.

Doses from routine diagnostic X rays and possibility of hormesis induction

Number of X rays	Dose rangea	Hormesis likely?
<5	0.01 mGy – 30 mGy	> 0.01 mGy Yes*
5-14	0.1 mGy-50 mGy	Yes*
≥ 14	1 mGy – 230 mGy	Yes*

^*Scott (2005a); Scott et al. (2006)

^aBoice et al. (1991)