Drain production dynamics.
RECURRENCE, GROUP B, REGRESSIONS
A shows the median drain start time in each of the three groups. Data are presented as means and standard deviation. The median drain start time was 0 hours post-surgery for every group. InterQuartiel Range (IQR) was 0–0.5 for group B and 0–2 for group C. B shows the median drainage time (hours of/with production). The median drainage time was 2 hours (IQR 1–3) in group A, 10.5 hours (IQR 8–13) in group B and 19.5 hours (IQR 16–22.5) in group C. C shows the total drain production (volume, mL). Group A; 30 mL (IQR 10–40), Group B; 50 mL (IQR 35–70) and Group C; 85 mL (IQR 40–165). D represents a univariable regressions analysis between total drain production (volume, mL) and total hours of production (P < 0.000, slope 0.051, 95% CI: 0.04–0.06).However, hours of production were significantly different between groups (P < 0.000) (The recurrence rate was 26.5% in group A, 15.6% in group B, and 9.6% in group C, which was significantly different (P = 0.037).