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Table 3 Estimated beta coefficients and their standard errors (SE) for the final Cox proportional hazards model

From: Predicting COPD 1-year mortality using prognostic predictors routinely measured in primary care

  Coefficient SE p value
Continuous variables
 Age 0.040 0.004 < 0.0001
 BMI − 0.047 0.006 < 0.0001
 Creatinine 0.001 0.001 < 0.05
 Haemoglobin − 0.006 0.001 < 0.0001
 FEV1 − 0.433 0.078 < 0.0001
Categorical variables
 Asthma − 0.155 0.057 < 0.01
 Atrial fibrillation 0.450 0.077 < 0.0001
 No CKD − 0.314 0.143 < 0.05
 Current smoker 0.179 0.061 < 0.05
 Dementia 0.391 0.137 < 0.01
 Female − 0.331 0.069 < 0.0001
 Hospitalisations
  1–2/year 0.517 0.081 < 0.0001
  > 2/year 0.980 0.181 < 0.0001
 Low albumin 0.531 0.089 < 0.0001
 Lung cancer 1.063 0.135 < 0.0001
 Lung fibrosis 0.794 0.219 < 0.0001
 MRC
  2 0.577 0.130 < 0.0001
  3 0.890 0.133 < 0.0001
  4 1.599 0.142 < 0.0001
 Platelets
  Normal − 0.394 0.131 < 0.01
  High − 0.208 0.161 > 0.05
 Stroke 0.235 0.097 < 0.05