Multivariable Cox regression models analysing the association between education level and all-cause 5-year mortality after oesophagectomy for cancer, stratified by tumour stage, and expressed as HRs with 95% CIs, with tumour stage I in the high educated group as reference
| Level of education* | Total number (%) | |||
|---|---|---|---|---|
| ≥13 years | 10–12 years HR (95% CI) | ≤9 years HR (95% CI) | ||
| Model 3 | ||||
| Stage I | 1 | 1.56 (0.51 to 4.76) | 2.43 (0.84 to 7.05) | 113 (18.8) |
| Stage II | 5.47 (1.77 to 16.87) | 6.13 (2.22 to 16.92) | 5.54 (2.00 to 15.39) | 176 (29.3) |
| Stage III | 10.31 (3.62 to 29.39) | 9.01 (3.28 to 24.74) | 9.87 (3.61 to 26.94) | 242 (40.3) |
| Stage IV | 12.65 (3.78 to 42.38) | 19.03 (6.63 to 54.62) | 15.49 (5.41 to 44.33) | 69 (11.5) |
Values are expressed as HRs or as number of patients (%).
Model 3: adjusted for sex, age, histology, major complications, comorbidity and surgeon volume.
*Level of education: ≥13 years: postsecondary education; 10–12 years: upper secondary education; ≤9 years: compulsory education.