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Table 3 Comparison of Effective Dose for CT Brain Studies Between Pediatric and General EDs

From: Differences in radiation dose for computed tomography of the brain among pediatric patients at the emergency departments: an observational study

Age Group Overall (n = 479) Pediatric ED (n = 379) General EDs (n = 100) p-value
Median Effective Dose (IQR), mSv n (%) Median Effective Dose (IQR), mSv n (%) Median Effective Dose (IQR), mSv n (%)
≤6 months 1.84 (1.60–2.65) 22 (4.6) 1.79 (1.59–2.39) 20 (5.3) 2.95 (−) 2 (2.0) 0.052
> 6 months to ≤3 years 1.97 (1.67–2.29) 118 (24.6) 1.97 (1.67–2.26) 112 (29.6) 2.57 (1.76–4.01) 6 (6.0) 0.063
> 3 years to ≤6 years 1.57 (1.42–1.57) 87 (18.2) 1.57 (1.42–1.79) 82 (21.6) 1.93 (1.51–2.28) 5 (5.0) 0.047
> 6 years to ≤10 years 1.48 (1.30–1.76) 88 (18.4) 1.43 (1.27–1.67) 72 (19.0) 1.94 (1.61–2.59) 16 (16.0) 0.002
> 10 years 1.63 (1.38–2.10) 164 (34.2) 1.68 (1.32–1.72) 93 (24.5) 2.03 (1.58–2.88) 71 (71.0) < 0.001