TABLE 4

Odds ratios for failure of fibrinolysis and subgroup surgical referral, determined using a multivariate logistic regression model

CovariateAdditional procedureSurgical referral
OR (95% CI)p-valueOR (95% CI)p-value
Urokinase versus t-PA/DNase0.69 (0.25–1.91)0.480.52 (0.14–2.02)0.35
Tube size (ref. 8–12 French)
 14–18 French1.1 (0.39–3.14)0.851.71 (0.44–6.69)0.44
 20–24 French11.19 (1.7–73.9)0.011.67 (0.26–10.78)0.59
One versus multiple collections6.58 (1.68–25.73)0.0072.44 (0.48–12.26)0.28

t-PA: tissue plasminogen activator.