Table 2.
Change in BMI during the first year of injury
| Participants (N) | BMI during rehabilitation (kg/m2) | BMI at year 1 (kg/m2) | BMI change (kg/m2) | P value for BMI change | P value* | Adjusted P value** | |
|---|---|---|---|---|---|---|---|
| Overall | 1094 | 26.3 (5.98) | 25.8 (5.79) | −0.48 | <0.01 | – | – |
| Age | |||||||
| 18–30 | 403 | 24.2 (5.52)a | 23.8 (5.36)b | −0.41 | 0.02 | 0.12 | 0.08 |
| 31–45 | 234 | 27.1 (5.87) | 26.8 (5.58) | −0.24 | 0.35 | ||
| 46–60 | 301 | 27.9 (6.27) | 27.5 (6.05) | −0.44 | 0.04 | ||
| 61–88 | 156 | 27.5 (5.18) | 26.4 (5.14) | −1.10 | <0.01 | ||
| Sex | |||||||
| Male | 881 | 26.1 (5.68)a | 25.7 (5.65) | −0.44 | <0.01 | 0.38 | <0.01 |
| Female | 212 | 27.1 (7.07) | 26.5 (6.32) | −0.68 | 0.01 | ||
| Race/ethnicity | |||||||
| White | 693 | 26.5 (5.81) | 25.9 (5.72) | −0.61 | <0.01 | 0.33 | 0.70 |
| Black | 287 | 25.9 (6.14) | 25.6 (5.77) | −0.25 | 0.32 | ||
| Hispanic | 81 | 26.3 (6.51) | 26.3 (6.10) | −0.03 | 0.78 | ||
| Other | 29 | 25.2 (7.02) | 24.5 (6.46) | −0.68 | 0.22 | ||
| Marital status | |||||||
| Single | 484 | 24.8 (5.40)a | 24.4 (5.34)b | −0.40 | 0.01 | 0.02 | 0.04 |
| Married | 441 | 27.7 (6.30) | 26.9 (5.89) | −0.78 | <0.01 | ||
| Other | 168 | 27.0 (5.70) | 27.1 (5.85) | 0.09 | 0.69 | ||
| Education | |||||||
| Less than high school | 175 | 25.3 (6.39)a | 27.2 (5.58) | −0.16 | 0.51 | <0.01 | 0.06 |
| High school | 621 | 26.1 (5.98) | 25.8 (5.85) | −0.29 | 0.06 | ||
| College or higher | 263 | 27.1 (5.42) | 26.1 (5.57) | −1.03 | <0.01 | ||
| Occupation | |||||||
| Employed | 675 | 26.7 (6.09)a | 26.3 (5.87)b | −0.42 | <0.01 | 0.65 | 0.58 |
| Student or trainee | 102 | 23.6 (4.97) | 23.2 (4.98) | −0.41 | 0.17 | ||
| Other | 314 | 26.4 (5.85) | 25.8 (5.63) | −0.64 | <0.01 | ||
| Neurological level | 0.11 | 0.03 | |||||
| AIS DE | 365 | 27.1 (5.77)a | 26.9 (5.59)b | −0.26 | 0.09 | ||
| Para ABC | 387 | 25.9 (5.79) | 25.5 (5.97 | −0.42 | 0.02 | ||
| Tetra ABC | 332 | 25.9 (6.40) | 25.0 (5.68) | −0.82 | <0.01 | ||
| Vertebral injury | |||||||
| Yes | 865 | 26.0 (5.80)a | 25.4 (5.62)b | −0.53 | <0.01 | 0.39 | 0.15 |
| No | 226 | 27.7 (6.50) | 27.3 (6.21) | −0.30 | 0.20 | ||
| Associated injury | |||||||
| Yes | 476 | 25.9 (6.01)a | 25.5 (5.84) | −0.43 | 0.02 | 0.65 | 0.58 |
| No | 615 | 26.6 (5.96) | 26.1 (5.75) | −0.53 | <0.01 | ||
| Spinal surgery | |||||||
| Yes | 842 | 26.4 (6.01) | 26.0 (5.82) | −0.6 | <0.01 | 0.20 | 0.91 |
| No | 248 | 25.8 (5.91) | 25.6 (5.72) | −0.2 | 0.30 | ||
| Rehospitalization | |||||||
| Yes | 687 | 26.6 (5.96) | 25.9 (5.87) | −0.7 | <0.01 | 0.14 | 0.57 |
| No | 383 | 26.2 (6.05) | 25.8 (5.79) | −0.4 | <0.01 | ||
aP < 0.05, comparison of baseline BMI across groups.
bP < 0.05, comparison of BMI at year 1 across groups.
*Comparison of BMI changes across groups.
**Comparison of BMI changes across groups, after adjusting for baseline weight and listed variables.