From: Postoperative serum interleukin-6 levels correlate with survival in stage I-III colorectal cancer
 | DFS | OS | ||||
---|---|---|---|---|---|---|
 | P | HR | 95%CI | P | HR | 95%CI |
Age (y) | Â | Â | Â | Â | Â | Â |
< 60 | 1 |  |  | 1 |  |  |
≥ 60 | 0.60 | 1.16 | 0.66–2.05 | 0.34 | 1.38 | 0.71–2.69 |
Gender | Â | Â | Â | Â | Â | Â |
Male | 1 | Â | Â | 1 | Â | Â |
Female | 0.01* | 0.39 | 0.20–0.76 | 0.08 | 0.52 | 0.25–1.07 |
Type of operation | Â | Â | Â | Â | Â | Â |
Laparotomy | 1 | Â | Â | 1 | Â | Â |
Laparoscopy | 0.02* | 0.51 | 0.28–0.90 | 0.02* | 0.46 | 0.23–0.89 |
Tumor location | Â | Â | Â | Â | Â | Â |
Right | 1 | Â | Â | 1 | Â | Â |
Left | 0.97 | 0.99 | 0.53–1.82 | 0.59 | 0.81 | 0.39–1.71 |
History of smoking | Â | Â | Â | Â | Â | Â |
Current + past | 1 |  |  | 1 |  |  |
Never | 0.86 | 0.96 | 0.54–1.71 | 0.58 | 0.83 | 0.43–1.60 |
History of drinking | Â | Â | Â | Â | Â | Â |
Current + past | 1 |  |  | 1 |  |  |
Never | 0.02* | 0.51 | 0.30–0.88 | 0.15 | 0.63 | 0.34–1.19 |
Histological grade | Â | Â | Â | Â | Â | Â |
Well + moderate | 1 |  |  | 1 |  |  |
Poor | 0.44 | 1.35 | 0.63–2.86 | 0.56 | 1.30 | 0.54–3.10 |
Mucinous elements | Â | Â | Â | Â | Â | Â |
Without | 1 | Â | Â | 1 | Â | Â |
With | 0.85 | 1.07 | 0.52–2.20 | 0.81 | 1.11 | 0.49–2.50 |
T stages | Â | Â | Â | Â | Â | Â |
T1 + T2 | 1 |  |  | 1 |  |  |
T3 + T4 | 0.07 | 2.56 | 0.92–7.09 | 0.07 | 3.79 | 0.91–15.75 |
 N stages |  |  |  |  |  |  |
N0 | 1 | Â | Â | 1 | Â | Â |
N1+N2 | < 0.01* | 2.55 | 1.45–4.50 | < 0.01* | 2.87 | 1.47–5.60 |
TNM stages | Â | Â | Â | Â | Â | Â |
I + II | 1 |  |  | 1 |  |  |
III | < 0.01* | 2.55 | 1.45–4.50 | < 0.01* | 2.87 | 1.47–5.60 |
BMI (kg/m 2 ) | 0.44 | 0.97 | 0.89–1.05 | 0.15 | 0.93 | 0.84–1.03 |
IL-6 level | Â | Â | Â | Â | Â | Â |
Low | 1 | Â | Â | 1 | Â | Â |
High | 0.02* | 1.96 | 1.13–3.38 | 0.14 | 1.62 | 0.86–3.05 |