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Table 2 Changes of the NLR and PLR before and after OSA surgery with subgroup analyses based on the pre-operative NLR and PLR values

From: Inflammatory biomarkers of neutrophil-to-lymphocyte and platelet-to-lymphocyte ratios in 563 severe OSA patients before and after surgery

 

Mean (SD)

95% CI for difference

P valuea

Pre-operative

Post-operative

Difference

NLR

 Overall

1.9 (0.7)

1.7 (0.8)

 − 0.1 (0.8)

 − 0.2 to 0.0

0.004

 Pre-operative NLR < 3 (n = 525)

1.7 (0.5)

1.6 (0.6)

 − 0.1 (0.6)

 − 0.1 to 0.0

0.082

Pre-operative NLR3 (n = 38)

3.6 (0.6)

2.7 (1.8)

 − 0.8 (1.6)

 − 1.5 to − 0.2

0.013

PLR

 Overall

118.3 (38.9)

108.7 (34.0)

 − 9.6 (30.3)

 − 13.0 to − 6.2

 < 0.001

 Pre-operative PLR < 150 (n = 481)

104.8 (24.1)

101.7 (27.1)

 − 3.1 (23.2)

 − 5.9 to − 0.2

0.033

Pre-operative PLR150 (n = 82)

184.8 (28.4)

143.2 (42.9)

 − 41.6 (40.0)

 − 52.8 to − 30.5

 < 0.001

  1. OSA: obstructive sleep apnea/hypopnea syndrome; NLR: neutrophil-to-lymphocyte ratio; PLR: platelet-to-lymphocyte ratio
  2. aStatistical analysis were performed using paired t-tests, and P < .05 was viewed as of significance