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Table 3 Odds ratios of SWSM for overall survival by multivariate analysis

From: Predicting 2-year survival in stage I-III non-small cell lung cancer: the development and validation of a scoring system from an Australian cohort

Variable β coefficient SE OR Log OR 95% CI p-value
ECOG performance status       0.1
 0    1.00 (Reference) 0.00 (Reference)   
 1 − 0.43 0.3 0.65 − 0.19 0.36–1.16 0.14
 ≥ 2 0.24 0.31 1.28 0.11 0.70–2.31 0.43
DLCO − 0.014 0.006 0.99 − 0.004 0.97–1.00 0.022
Histological diagnosis       0.078
 Squamous cell carcinoma    1.00 (Reference) 0.00 (Reference)   
 Adenocarcinoma − 0.57 0.26 0.57 − 0.24 0.34–0.95 0.031
 Other − 0.48 0.41 0.62 − 0.21 0.28–1.38 0.24
Tumour lobe       0.059
 Upper    1.00 (Reference) 0.00 (Reference)  
 Middle/lower 0.47 0.25 1.61 0.21 0.98–2.62
 EQD2 − 0.025 0.006 0.98 − 0.009 0.96–0.99 < 0.001
  1. SWSM = South West Sydney Model; SE = standard error; OR = odds ratio; CI = confidence interval; ECOG = Eastern Cooperative Oncology Group; DLCO = diffusing capacity of the lung for carbon monoxide; EQD2= equivalent dose in 2 Gy fractions