Routine Head Computed Tomography for Patients in the Emergency Room with Trauma Requires Both Thick- and Thin-Slice Images

Table 3

Number of cases with linear fractures that were not detected on head CT with 10 mm thick slices.

	Head CT			Head CT or skull X-rays
	True positive	False negative	Sensitivity	True positive
<15 years	87	2	98%	89
≥55 years	172	16	91%	188
Total	386	24	94%	410

in <15 years versus ≥55 years by the test for the population proportion.