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Table 4 Minute-ventilation mean/medians for adaptive servo-ventilation treatment according to k-means clusters and device type

From: Patterns of adaptive servo-ventilation settings in a real-life multicenter study: pay attention to volume!

 

Total

n = 177 (100%)

Cluster 1

n = 53 (29.9%)

Cluster 2

n = 58 (32.7%)

Cluster 3

n = 33 (18.6%)

Cluster 4

n = 20 (11.3%)

Cluster 5

n = 13 (7.3%)

P

Philips Respironics®

n = 68

n = 12

n = 30

n = 13

n = 7

n = 6

0.002

Mean MV (l/min)*

7.95

7.85 i

8.30 b

7.90

6.20 b, d

10.45 d, i

 

ASV flow-monitored devices.

[7.20–9.30]

[6.65–8.25]

[7.30–9.30]

[7.30–8.90]

[5.30–7.80]

[9.90–11.20]

 

(4.90–14.80)

(5.10–10.80)

(6.40–11.70)

(5.80–14.80)

(4.90–7.80)

(8.30–11.30)

 

ResMed®

n = 107

n = 39

n = 28

n = 20

n = 13

n = 7

< 0.001

Median MV (l/min)*

6.90

7.30 a

6.85 b

7.00 c

5.50 a, b, c

6.60

 

ASV volume-monitored devices.

[6.00–7.80]

[6.60–8.30]

[6.35–7.65]

[6.00–7.45]

[5.00–5.90]

[5.10–7.80]

 

(2.50–11.40)

(5.40–10.30)

(2.50–11.40)

(4.60–10.60)

(3.60–6.90)

(3.80–9.80)

 
  1. Variables were summarized using medians, [IQ2575] and (min – max)
  2. *Note that for Philips Respironics® devices, the minute-ventilation is expressed as “mean” in the manufacturer software whereas for ResMed® devices, the minute-ventilation is expressed as “median” (thus preventing direct comparisons between these device types)
  3. ASV Adaptive servo-ventilation, MV minute-ventilation
  4. Significant (p < 0.05) post-hoc pairwise comparisons after Holm correction (within lines) were presented using labels a, b, c, d, I. Label a indicates a significant difference between Cluster 1 and Cluster 4, label b indicates a significant difference between Cluster 2 and Cluster 4, label c indicates a significant difference between Cluster 3 and Cluster 4, label d indicates a significant difference between Cluster 4 and Cluster 5, label i indicates a significant difference between Cluster 1 and Cluster 5