TABLE 2.
Weight and Body Mass Index Changes
| Trends | Colon cancer (n = 115) | Mean % change | Rectal cancer (n = 33) | Mean % change |
|---|---|---|---|---|
| Time from diagnosis to surgery, mean (SD), d | 43.9 (26.8) | — | 172.1 (39.1) | — |
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| Prediagnosis body mass index, mean (SD) | ||||
| 1 y | 30.4 (6.9) | — | 33.2 (6.2) | — |
| 6 mo | 30.6 (6.6) | +1.9 | 33.9 (7.8) | −0.5 |
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| ||||
| Body mass index during care, mean (SD) | ||||
| At diagnosis | 29.9 (7.1) | −1.5 | 30.9 (7.4) | −2.5 |
| Start of neoadjuvant chemotherapy | — | — | 30.6 (7.0) | +0.4 |
| At surgery | 30.0 (6.6) | +0.1 | 30.4 (6.7) | −0.3 |
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| Postoperative body mass index, mean (SD) | ||||
| 30 d | 29.0 (6.5) | −3.5 | 28.0 (5.7) | −7.0 |
| 60 d | 29.4 (6.9) | +1.5 | 29.0 (6.0) | +0.2 |
| 1 y | 29.9 (6.4) | +1.3 | 29.8 (6.3) | +4.9 |
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| Adjuvant chemotherapy body mass index, mean (SD) | ||||
| At start | 32.6 (8.6) | — | 28.2 (5.0) | — |
| At end | 33.1 (8.7) | −0.3 | 28.4 (5.0) | +2.6 |
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| Any weight loss from 6 mo to diagnosis, No. (%) | 47 (64) | — | 14 (70) | — |
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| Any weight loss from 6 mo to surgery, No. (%) | 58 (66) | — | 12 (57) | — |