Variable | Single-variate analyses | Multivariate analysis | ||||
---|---|---|---|---|---|---|
 | Crude HR | 95% CI | P value | AHR | 95% CI | P value |
25OHD, ng/mL | 1.00 | 0.95-1.05 | 0.86 | 1.02 | 0.96-1.10 | 0.50 |
Age at surgery, years | 1.01 | 0.98-1.04 | 0.64 | 1.00 | 0.96-1.04 | 0.95 |
Gender, female | 0.69 | 0.31-1.56 | 0.38 | 0.68 | 0.25-1.86 | 0.46 |
Time period of surgery | Â | Â | Â | Â | Â | Â |
May 2003 - December 2005 | 0.45 | 0.20-1.03 | 0.06 | 0.42 | 0.11-1.54 | 0.19 |
January 2006 - January 2008 | reference | Â | Â | Â | Â | Â |
Stage | Â | Â | Â | Â | Â | Â |
Stage I | 0.00 | - | - | 0.00 | - | - |
Stage II | 0.20 | - | 0.13 | 0.00 | - | - |
Stage III | 0.68 | 0.18-0.56 | 0.71 | 0.00 | 0.00-0.00 | < 0.001 |
Stage IV | Reference | Â | Â | Reference | Â | Â |
Location of tumor | Â | Â | Â | Â | Â | Â |
Proximal colon | 1.14 | 0.49-2.64 | 0.56 | 0.69 | 0.23-2.03 | 0.50 |
Distal colon | 0.43 | 0.12-1.55 | 0.20 | 0.57 | 0.13-2.40 | 0.44 |
Rectum | Reference | Â | Â | Reference | Â | Â |
Adjuvant chemotherapy | 4.49 | 1.71-11.75 | 0.002 | 0.68 | 0.18-2.64 | 0.58 |
Number of lymph nodes with metastasis*2 | 1.06 | 1.02-1.11 | 0.007 | 1.06 | 0.96-1.18 | 0.24 |