Table 1.
Characteristic | Study Participants (N = 496) |
Association With All-Cause Mortality |
P | ||
---|---|---|---|---|---|
No. | % | Unadjusted Hazard Ratio | 95% CI | ||
Status | |||||
Alive | 163 | 32.9 | |||
Dead | 333 | 67.1 | |||
Cause of death (n = 333) | |||||
Colon cancer | 219 | 65.8 | |||
Other | 114 | 34.2 | |||
Median follow-up time, months | 58.2 | ||||
Age, years | 1.25* | 1.14 to 1.37 | |||
Mean | 66.9 | ||||
Standard deviation | 12.2 | ||||
Sex | |||||
Male | 225 | 45.4 | Ref | ||
Female | 271 | 54.6 | 1.08 | 0.87 to 1.34 | |
Race | |||||
White | 303 | 61.2 | Ref | ||
African American | 193 | 38.9 | 1.23 | 0.99 to 1.53 | |
Time of surgery | .08 | ||||
1981-1986 | 76 | 15.3 | Ref | ||
1987-1991 | 96 | 19.4 | 0.67 | 0.48 to 0.94 | |
1992-1996 | 133 | 26.8 | 0.69 | 0.50 to 0.95 | |
1997-2002 | 191 | 38.5 | 0.75 | 0.55 to 1.02 | |
Private insurance | |||||
Yes | 334 | 67.6 | Ref | ||
No | 160 | 32.4 | 1.26 | 1.01 to 1.58 | |
Smoking status | .77 | ||||
No | 297 | 59.9 | Ref | ||
Former | 117 | 23.6 | 0.91 | 0.69 to 1.19 | |
Current | 82 | 16.5 | 0.98 | 0.73 to 1.32 | |
ACE-27 comorbidity | < .001 | ||||
None | 98 | 19.8 | Ref | ||
Mild | 184 | 37.1 | 0.81 | 0.60 to 1.11 | |
Moderate | 128 | 25.8 | 1.20 | 0.87 to 1.66 | |
Severe | 86 | 17.3 | 1.56 | 1.11 to 2.20 | |
CCI score | .003 | ||||
0 | 252 | 50.8 | Ref | ||
1 | 133 | 26.8 | 1.01 | 0.78 to 1.32 | |
≥ 2 | 111 | 22.4 | 1.58 | 1.21 to 2.05 | |
NIA/NCI comorbidities | .02 | ||||
0-1 | 150 | 30.2 | Ref | ||
2-3 | 189 | 38.1 | 0.85 | 0.65 to 1.11 | |
4-5 | 113 | 22.8 | 1.00 | 0.74 to 1.35 | |
≥ 6 | 44 | 8.9 | 1.56 | 1.06 to 2.29 | |
Tumor stage | < .001 | ||||
I | 91 | 18.4 | Ref | ||
II | 169 | 34.1 | 1.43 | 1.00 to 2.05 | |
II | 137 | 27.6 | 2.48 | 1.72 to 3.58 | |
IV | 99 | 20.0 | 9.37 | 6.40 to 13.71 | |
Tumor grade | |||||
Low | 398 | 80.2 | Ref | ||
High | 98 | 19.8 | 1.70 | 1.32 to 2.20 | |
Chemotherapy | |||||
No | 362 | 73.0 | Ref | ||
Yes | 134 | 27.0 | 1.74 | 1.38 to 2.20 | |
BMI | < .01 | ||||
Underweight | 24 | 4.8 | 1.81 | 1.15 to 2.83 | |
Normal | 199 | 40.1 | Ref | ||
Overweight | 168 | 33.9 | 0.86 | 0.67 to 1.11 | |
Obese | 105 | 21.2 | 0.77 | 0.57 to 1.03 | |
Recent weight loss | |||||
No | 336 | 67.7 | Ref | ||
Yes | 160 | 32.3 | 1.52 | 1.22 to 1.90 | |
Obstruction | |||||
No | 349 | 70.4 | Ref | ||
Yes | 147 | 29.6 | 1.98 | 1.58 to 2.48 | |
Received blood | |||||
No | 471 | 95.0 | Ref | ||
Yes | 25 | 5.0 | 1.96 | 1.26 to 3.06 |
Abbreviations: Ref, referent; ACE-27, Adult Comorbidity Evaluation-27; CCI, Charlson Comorbidity Index; NIA/NCI, National Institute on Aging and National Cancer Institute; BMI, body mass index.
For each 10-year increase in age.