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. Author manuscript; available in PMC: 2019 Feb 11.
Published in final edited form as: J Emerg Med. 2018 Aug 28;55(5):693–701. doi: 10.1016/j.jemermed.2018.07.010

Table 6.

Comparison of Primary and Secondary Outcomes in POCUS and Non-POCUS Groups (n = Number of Lesions)

POCUS (n = 214) Non-POCUS (n = 91) p-Value
Primary outcome Resolution of symptoms, n (%) 179(83.6) 74(81.3) 0.621
Treatment failure, n (%) 30 (14.0) 13(14.3) 0.855
 Hospital admission 6 (2.8) 3 (3.3) 0.816
 Unscheduled return to ED 6 (2.8) 6 (6.6) 0.119
 New incision/reinstrumentation 15(7.0) 8 (8.8) 0.590
 Antibiotics started/changed 15(7.0) 5 (5.5) 0.625
 Recurrent abscess 3(1.4) 2 (2.2) 0.617
Secondary outcomes Discharge, n (%) 148(69.2) 63 (69.2) 0.946
 ED LOS (time to disposition), minutes* 138.0 163.5 0.935
 Sedation, n (%) 41 (19.2) 11 (12.1) 0.133
 Alternative imaging, n (%) 24 (11.2) 16(17.5) 0.132

POCUS = point-of-care ultrasound; ED = emergency department; LOS = length of stay.

*

Median values.