In the LBW group, 21 infants (1.9%), including 10 LBW infants born at term, had higher than 0.4 mGy cumulative dose compared with 1.0% of NBW infants.

• 在LBW样本组，21个新生儿（1.；9%25）包括10个足月产低体重儿，与1%25的正常出生体重（NBW）进行比较，（母亲）曾接受大于0