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Table 4 Univariate and multivariate mixed regression effects for the length of time between hospitalisations

From: Hospital admission rates and related outcomes among adult Aboriginal australians with bronchiectasis – a ten-year retrospective cohort study

Clinical parameters

Univariate model

RW p

Multivariate model

RW p

Age

2.38 (-1.5, 6.26)

0.656

3.65 (-0.6, 7.91)

0.205

Female

50.63 (-41.15, 142.41)

0.755

54.17 (-40.4, 148.74)

0.715

Urban

118.19 (-50.19, 286.56)

0.477

65.28 (-105.01, 235.58)

0.980

BMI (n = 17 & 152)

2.96 (-7.53, 13.45)

1.000

  

Former smoker

17.02 (-210.74, 244.79)

1.000

  

Current Smoker

-40.72 (-267.94, 186.49)

  

FVC (10% predicted) (n = 152)

-6.74 (-53.8, 40.31)

1.000

  

FEV1 (10% predicted) (n = 152)

-30.5 (-75.27, 14.26)

0.517

  

FEV1/FVC (n = 152)

1.2 (-2.64, 5.05)

0.993

  

COPD

-475.9 (-649.31, -302.5)

0.007

-420.37 (-598.65, -242.09)

0.007

Asthma

-129.22 (-229.09, -29.35)

0.007

-118.83 (-222.06, -15.6)

0.020

ILD

-254.09 (-1052.65, 544.47)

1.000

  

Lung cancer

-37.24 (-279.71, 205.23)

1.000

-23.87 (-259.45, 211.72)

1.000

Hypertension

-63.74 (-159.52, 32.05)

0.536

-49.31 (-154.01, 55.4)

0.894

Type 2 diabetes

-62.39 (-153.92, 29.13)

0.517

  

Chronic kidney disease

4.88 (-88.86, 98.62)

1.000

-2.28 (-102.58, 98.01)

1.000

CAD

-46.85 (-141.24, 47.54)

0.861

-35.68 (-135.2, 63.84)

0.980

HF

-150.97 (-312.96, 11.02)

0.133

-111.82 (-270.71, 47.06)

0.470

RLL

-154.79 (-249.15, -60.42)

0.007

  

RML

19.41 (-73.96, 112.79)

1.000

32.2 (-68.15, 132.55)

0.993

RUL

-86.13 (-187.44, 15.17)

0.212

-121.7 (-243.85, 0.44)

0.099

LLL

-41.57 (-146.7, 63.55)

0.980

-19.69 (-142.34, 102.96)

1.000

Lingula

-0.09 (-102.46, 102.27)

1.000

  

LUL

9.14 (-99.88, 118.16)

1.000

95.49 (-36.73, 227.71)

0.437

Bilateral

-83.82 (-181.04, 13.39)

0.199

-55.44 (-171.64, 60.76)

0.894

SABA

-58.67 (-156.22, 38.88)

0.676

  

SAMA

-30.2 (-193.6, 133.21)

1.000

  

LABA

-94.12 (-192.92, 4.69)

0.119

  

LAMA

-79.83 (-171.3, 11.64)

0.192

  

ICS

-56 (-150.35, 38.35)

0.695

  
  1. Multivariate model created via stepwise regression with forced inclusion of demographic variables (age, sex and residence location) and excluding smoking status, BMI and lung function parameters due to incomplete data, with exclusion from the model set at p > 0.01
  2. Abbreviations: BMI Body mass index, FVC Forced vital capacity, FEV1 Forced expiratory volume in one second, COPD Chronic obstructive pulmonary disease, ILD Interstitial lung disease, HF Heart failure, CAD Coronary artery disease, LLL Left lower lobe, RLL Right lower lobe, RML Right middle lobe, RUL Right upper lobe, LUL Left upper lobe, RW-p Romano-Wolff p-value, SABA Short acting beta agonists, SAMA Short acting muscarinic agents, LABA Long acting beta agonists, LAMA Long acting muscarinic agents, ICS Inhaled corticosteroids