Skip to main content

Table 4 Stratified meta-analyses and meta-regression of variables associated with failure of selective nonoperative management of abdominal gunshot wounds

From: Outcomes of selective nonoperative management of civilian abdominal gunshot wounds: a systematic review and meta-analysis

Comparison No. of studies Pooled estimate of SNOM failure, % (95% CI) I2 statistic, % Meta-regression p value
Study temporality and setting Prospective 22 4.3 (2.7–6.0) 24.4 0.27
Retrospective 19 8.0 (2.8–13.3) 95.6
Conducted in the USA 29 8.1 (4.2–12.1) 94.3 NA
Conducted in South Africa 8 4.7 (2.5–6.9) 0 0.32*
Conducted in other countries 4 7.0 (3.9–10.1) 0 0.35*
Study patient injury patterns Abdominal GSWs 24 7.3 (3.0–11.5) 95.1 NA
Liver GSWs 5 6.6 (0.0–13.3) 49.8 0.99
Renal GSWs 6 3.5 (0–7.3) 0 0.39
Back GSWs 1 3.1 (0–6.5) NA 0.52
Flank GSWs 1 7.0 (3.9–10.1) NA 0.09
Anterior abdomen GSWs 1 13.2 (6.3–20.1) NA 0.51
Right thoracoabdomen GSWs 3 3.4 (0–7.0) 0 0.45
Reported SNOM practices SNOM by attending surgeon 5 2.1 (7.8–16.3) 0 0.07
SNOM by surgical resident 4 7.2 (3.9–10.5) 89.5
Mandatory use of CT 15 4.2 (1.9–6.5) 33.5 0.08
Selective use of CT 19 8.3 (3.9–12.8) 94.4
  1. CI confidence interval, CT computed tomography, GSW gunshot wound, SNOM selective nonoperative management
  2. *Compared to the estimate associated with USA
  3. Compared to abdominal GSWs