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Table 6 Subset analysis in the post-CDSS intervention group comparing admission and CT head rates when the CDSS was visible versus when it was not visible. A two-tailed Z-value is provided along with the confidence level (CL%) at which the two rates are deemed to be statistically significant

From: Knowledge translation of the American College of Emergency Physicians’ clinical policy on syncope using computerized clinical decision support

  Total CDSS visible CDSS NOT visible Z-value (CL%)
N 301 200 101  
No. admitted (%) 182 (60.5 ± 5.5) 108 (54.0 ± 6.9) 74 (73.3 ± 8.7) 3.06 (99.8%)
No. CTs done (%) 130 (43.2 ± 5.6) 77 (38.5 ± 6.8) 53 (52.5 ± 9.8) 2.19 (97.2%)