Coefficient | ||
---|---|---|
Thoracoscore6 | NLCA data | |
Definition of early mortality | 30 days or in hospital | 90 days |
Number of deaths | 218 | 169 |
Age (years) | ||
<55 | – | – |
55–65 | 0.77 | 0.31 |
>65 | 1.01 | |
66–75 | 0.97 | |
>75 | 1.40 | |
Sex | ||
Women | – | – |
Men | 0.45 | 0.23 |
ASA score | ||
≤2 | – | |
≥3 | 0.61 | |
Performance status | ||
0 | – | |
≤2 | – | |
1–2 | 0.68 | |
≥3 | 0.69 | 0.21* |
MRC dyspnoea score | ||
≤2 | – | |
≥3 | 0.91 | |
% predicted FEV1 | ||
>80% | – | |
61–80% | 0.20 | |
40–60% | 0.69 | |
<40% | 0.95 | |
Priority | ||
Elective | – | |
Urgent/emergency | 0.84 | |
Procedure class | ||
Other† | – | |
(Bi-)lobectomy, wedge or segmentectomy | – | |
Other‡ | 0.07 | |
Pneumonectomy | 1.22 | 1.16 |
Diagnosis group | ||
Benign | – | |
Malignant | 1.24 | |
Comorbidity score§ | ||
0 | – | |
1–2 | 0.74 | |
≥3 | 0.91 | |
Charlson index | ||
0–1 | – | |
≥2 | 0.33 | |
Stage | ||
IA | – | |
IB | 0.42 | |
IIA or IIB | 0.51 | |
IIIA | 0.84 | |
Constant | −7.37 | −5.28 |
*Only 40 patients and two deaths in this group.
†Other includes mediastinoscopy or other mediastinal surgery, wedge resection, lobectomy or bi-lobectomy.
‡Other includes procedures listed in online supplementary appendix A. Odds=exp (total of coefficients+constant); probability of death=odds/(1+odds).
§Number of significant comorbid conditions, including smoking, history of cancer, chronic obstructive pulmonary disease, diabetes mellitus, arterial hypertension, peripheral vascular disease, obesity and alcoholism.
ASA, American Society of Anaesthesiologists; FEV1, forced expiratory volume in 1 s; MRC, Medical Research Council; NLCA, National Lung Cancer Audit; –, indicates baseline group.