Skip to main content

Table 2 ANOVA post-hoc pairwise comparisons of OWT-VAC, Mini-VAC, and Mini-VAC-Instill regarding vacuum duration and length of hospital stay

From: Short-term and long-term outcomes of intrathoracic vacuum therapy of empyema in debilitated patients

 

Vacuum duration in daysa

Pairwise therapy comparisons

Estimated marginal means

Difference (95 %-CI)

p-value

OWT-VAC vs Mini-VAC

20.3 vs 12.4

7.9 (1.0; 14.8)

0.026

OWT-VAC vs Mini-VAC-Instill

20.3 vs 10.4

9.9 (4.27; 15.5)

0.001

Mini-VAC vs Mini-VAC-Instill

12.4 vs 10.4

2.0 (−4.9; 8.8)

0.565

 

Postoperative length of stay in hospital in daysb

Pairwise therapy comparisons

Estimated marginal means

Difference (95 %-CI)

p-value

OWT-VAC vs Mini-VAC

24.4 vs 23.7

0.7 (−8.7; 10.1)

0.881

OWT-VAC vs Mini-VAC-Instill

24.4 vs 15.6

8.8 (1.1; 16.6)

0.027

Mini-VAC vs Mini-VAC-Instill

23.7 vs 15.6

8.2 (−0.8; 17.1)

0.074

  1. 95 %-CI 95 % confidence interval
  2. aMain effects: Vacuum duration (p = 0.003), surgery indication (p = 0.968); bMain effects: Vacuum duration (p = 0.052), surgery indication (p = 0.744)