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Table 4 Intervention/complication for POCUS and formal imaging

From: Point-of-care ultrasound for the detection of hydronephrosis in emergency department patients with suspected renal colic

 Intervention/complicationNo intervention/ complicationRisk (95% CI)Relative risk (95% CI)
POCUS
 Positive2216311.83% (7.56, 17.36)3.13 (1.30, 7.53)
 Negative/indeterminate61533.77% (1.40, 8.03) 
POCUS
 Positive/indeterminate2317911.39% (7.36, 16.59)3.23 (1.26, 8.30)
 Negative51373.52% (1.15, 8.03) 
Formal imaging
 Positive2615314.53% (9.71, 20.55)11.98 (2.89, 49.70)
 Negative21631.21% (0.15, 4.31) 
  1. Patients were positive for intervention/complication if they had any one of the following at 30 days follow-up—lithotripsy, stent, percutaneous nephrostomy, sepsis, hospital admission or death