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Table 2 Univariate analyses by gender

From: Mask side-effects are related to gender in long-term CPAP: results from the InterfaceVent real-life study

Variable

CPAP-usage (h/day)

CPAP-non-adherence (< 4 h/day)

Women, N = 413

Men, N = 1071

Women, N = 413

Men, N = 1071

Estimate

95% CI

p-value

Estimate

95% CI

p-value

OR

95% CI

p-value

OR

95% CI

p-value

Demographics

 Age (years)

0.01

− 0.01, 0.03

0.205

0.02

0.01, 0.03

 < 0.001

1.00

0.97, 1.03

0.953

0.97

0.95, 0.99

0.003

 BMI (kg/m2)

0.05

0.02, 0.08

 < 0.001

0.05

0.03, 0.07

 < 0.001

0.95

0.90, 1.00

0.075

0.95

0.90, 1.00

0.043

 Diagnostic AHI (events/h)

0.01

0.00, 0.02

0.089

0.01

0.00, 0.02

0.001

1.00

0.98, 1.02

0.680

0.99

0.98, 1.01

0.264

 Active smokers

− 0.54

− 1.11, 0.02

0.059

0.14

− 0.19, 0.47

0.403

1.56

0.65, 3.74

0.320

1.63

0.85, 3.13

0.141

 Mustache

NA

NA

NA

− 0.05

− 0.30, 0.20

0.706

NA

NA

NA

1.00

0.57, 1.76

0.992

 Beard

NA

NA

NA

− 0.20

− 0.48, 0.08

0.161

NA

NA

NA

0.86

0.44, 1.68

0.661

 Active workers

− 0.53

− 0.98, − 0.07

0.025

− 0.47

− 0.73, − 0.21

 < 0.001

1.46

0.70, 3.05

0.311

1.71

0.99, 2.96

0.055

 Presence of partner

0.28

− 0.08, 0.63

0.128

0.11

− 0.15, 0.38

0.395

0.72

0.38, 1.36

0.310

0.45

0.27, 0.76

0.003

Epworth scale

 ESS (0–24 score)

− 0.09

− 0.13, − 0.05

 < 0.001

− 0.05

− 0.07, − 0.02

 < 0.001

1.09

1.02, 1.16

0.007

1.04

0.99, 1.10

0.144

 RES

− 0.84

− 1.32, − 0.35

 < 0.001

− 0.27

− 0.56, 0.01

0.058

2.26

1.10, 4.66

0.027

1.29

0.70, 2.36

0.419

Device

 Current AHIflow (events/h)

0.04

− 0.04, 0.11

0.355

− 0.02

− 0.04, 0.01

0.259

0.96

0.83, 1.12

0.621

1.07

1.02, 1.12

0.002

 Treatment duration (years)

0.05

0.02, 0.09

0.002

0.06

0.04, 0.08

 < 0.001

0.96

0.89, 1.03

0.218

0.91

0.86, 0.96

 < 0.001

 Mean pressure (cmH2O)

0.15

0.07, 0.23

 < 0.001

0.10

0.05, 0.15

 < 0.001

0.95

0.82, 1.10

0.496

0.93

0.83, 1.05

0.231

 90th/95th pressure (cmH2O)

0.12

0.04, 0.20

0.003

0.08

0.03, 0.13

 < 0.001

0.96

0.84, 1.11

0.588

0.94

0.84, 1.05

0.298

 Fixed pressure

0.56

− 0.03, 1.16

0.063

0.33

0.03, 0.64

0.031

0.62

0.18, 2.09

0.440

0.45

0.18, 1.15

0.095

 Comfort mode

− 0.34

− 0.83, 0.14

0.166

− 0.18

− 0.47, 0.11

0.227

2.16

1.05, 4.45

0.036

1.11

0.58, 2.12

0.746

 Heated humidifier

− 0.42

− 0.78, − 0.06

0.024

− 0.23

− 0.45, − 0.02

0.034

1.27

0.66, 2.45

0.472

1.49

0.89, 2.49

0.129

 Heated breathing tube

− 0.52

− 1.24, 0.19

0.152

− 0.17

− 0.78, 0.45

0.600

1.02

0.30, 3.55

0.970

2.77

1.03, 7.44

0.043

Mask

 Interface

  

0.029

  

0.200

  

0.026

  

0.022

 Nasal

 

 

 

 

 Nasal pillow

− 0.61

− 1.07, − 0.15

0.010

− 0.04

− 0.34, 0.26

0.806

2.60

1.23, 5.50

0.012

1.64

0.83, 3.27

0.157

 Oronasal

− 0.30

− 0.75, 0.14

0.180

− 0.22

− 0.45, 0.02

0.077

2.10

0.98, 4.49

0.055

2.12

1.23, 3.63

0.007

 Mask availability since 2013

− 0.44

− 0.80, − 0.08

0.016

− 0.34

− 0.55, − 0.12

0.002

1.57

0.84, 2.92

0.153

2.93

1.76, 4.88

 < 0.001

 Device reported leaks (0–100 score)

0.00

− 0.01, 0.01

0.685

0.00

− 0.01, 0.01

0.863

1.01

0.99, 1.03

0.374

1.00

0.99, 1.02

0.610

Side-effects (0–10 VAS score)

 Patient reported leaks

− 0.02

− 0.08, 0.04

0.458

0.01

− 0.03, 0.05

0.611

1.00

0.91, 1.11

0.942

1.01

0.93, 1.09

0.902

 Partner disturbing leaks

0.05

− 0.01, 0.11

0.079

0.02

− 0.01, 0.05

0.262

0.80

0.68, 0.94

0.007

0.93

0.86, 1.00

0.067

 Noisy mask

− 0.03

− 0.10, 0.04

0.350

0.00

− 0.05, 0.04

0.817

1.06

0.95, 1.19

0.291

0.97

0.88, 1.07

0.513

 Heavy mask

− 0.08

− 0.19, 0.02

0.102

− 0.04

− 0.11, 0.02

0.194

1.00

0.83, 1.19

0.966

0.92

0.77, 1.09

0.310

 Mask pain

− 0.07

− 0.16, 0.02

0.119

− 0.01

− 0.07, 0.05

0.678

1.08

0.94, 1.24

0.285

1.06

0.94, 1.20

0.311

 Mask injury

− 0.01

− 0.09, 0.07

0.772

0.05

− 0.01, 0.12

0.107

1.03

0.90, 1.17

0.702

0.98

0.84, 1.14

0.783

 Harness pain

− 0.03

− 0.13, 0.07

0.522

− 0.01

− 0.08, 0.06

0.882

1.05

0.90, 1.22

0.560

1.11

0.97, 1.26

0.119

 Harness injury

0.01

− 0.12, 0.14

0.887

0.09

0.01, 0.17

0.020

1.05

0.86, 1.28

0.658

0.88

0.69, 1.12

0.293

 Red eyes

0.04

− 0.03, 0.11

0.235

0.03

− 0.01, 0.07

0.159

0.96

0.85, 1.09

0.554

1.04

0.94, 1.14

0.450

 Itchy eyes

0.03

− 0.03, 0.10

0.300

0.04

0.00, 0.09

0.051

1.01

0.89, 1.13

0.929

0.98

0.88, 1.10

0.773

 Dry nose

− 0.05

− 0.10, 0.00

0.069

− 0.06

− 0.09, − 0.03

 < 0.001

1.00

0.90, 1.10

0.928

1.04

0.96, 1.12

0.308

 Stuffed nose

− 0.06

− 0.12, 0.00

0.034

− 0.02

− 0.06, 0.02

0.397

1.02

0.92, 1.13

0.668

0.99

0.91, 1.09

0.904

 Runny nose

0.01

− 0.06, 0.08

0.719

0.02

− 0.02, 0.06

0.298

0.99

0.87, 1.12

0.883

0.97

0.88, 1.07

0.586

 Dry mouth

− 0.05

− 0.10, 0.00

0.043

− 0.03

− 0.06, 0.00

0.090

1.04

0.95, 1.12

0.409

1.06

0.99, 1.13

0.092

 Number* [0/14]

− 0.03

− 0.08, 0.01

0.150

− 0.01

− 0.03, 0.02

0.500

1.02

0.94, 1.10

0.667

1.01

0.96, 1.07

0.632

  1. Bolds variables are statistically significant at the 5% threshold. Italics variables are included in multivariable analyses.*Number of side effects; dichotomous data created when the VAS scale for the side effect was above or equal to 1. This variable was not included in the multivariable analyses because of its collinearity with MRSE-variables
  2. AHI: Apnea–hypopnea Index; AHIflow: AHI reported by device; BMI: body mass index; CI: Exact Confidence Interval; CPAP: continuous positive airway pressure; ESS: Epworth Sleepiness Scale; NA: not applicable; OR: Odds Ratio; VAS: Visual Analogue Scale