Table 4.
Clinical and demographic predictors of abnormal nutrient values*
| Ferritin | Transferrin | Folate | Vitamin A | Vitamin D | PTH | |
|---|---|---|---|---|---|---|
| Surgery type: | ||||||
| Gastric Bypass | 2.88 (1.57, 5.26) | 3.76 (1.19, 11.9) | 0.49 (0.21, 1.13) | 4.57 (1.91, 10.9) | 1.93 (0.99, 3.77) | 5.91 (2.03, 17.2) |
| Sleeve Gastrectomy (reference) | 1.0 p=0.001 |
1.0 p=0.008 |
1.0 p=0.15 |
1.0 p=0.0005 |
1.0 p=0.06 |
1.0 P=0.0005 |
| Visit: | ||||||
| Year 1 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Year 2 | 2.10 (1.12, 3.94) | 2.14 (0.38, 12.0) | 0.95 (0.34, 2.65) | 1.64 (0.65, 4.12) | 0.95 (0.48, 1.90) | 1.33 (0.46, 3.86) |
| Year 3 | 2.66 (1.27, 5.57) | 4.21 (0.74, 23.8) | 1.08 (0.30, 3.90) | 1.42 (0.53, 3.82) | 0.70 (0.31, 1.62) | 1.93 (0.61, 6.04) |
| Year 4 | 4.39 (2.09, 9.22) | 4.68 (0.85, 26.0) | 0.40 (0.08, 2.07) | 1.69 (0.59, 4.84) | 0.77 (0.36, 1.69) | 2.07 (0.64, 6.64) |
| Year 5 | 4.94 (2.36, 10.3) p<.0001 |
5.56 (1.05, 29.5) p=0.01 |
0.19 (0.03, 1.28) p=0.009 |
1.65 (0.51, 5.39) p=0.61 |
0.87 (0.39, 1.92) p=0.68 |
2.38 (0.75, 7.55) p=0.31 |
| Sex: | ||||||
| Female | 1.47 (0.80, 2.68) | 3.58 (0.85, 15.1) | 0.68 (0.28, 1.67) | 1.07 (0.53, 2.15) | 0.73 (0.43, 1.26) | 1.90 (0.79, 4.97) |
| Male (reference) | 1.0 p=0.22 |
1.0 p=0.08 |
1.0 p=0.44 |
1.0 p=0.86 |
1.0 p=0.26 |
1.0 p=0.13 |
| Race: | ||||||
| Black | 1.07 (0.52, 2.17) | 0.55 (0.15, 2.02) | 0.33 (0.09, 1.27) | 2.47 (1.11, 5.51) | 4.12 (2.04, 8.34) | 2.03 (0.74, 5.56) |
| Other | 1.07 (0.38, 2.98) | 0.51 (0.12, 2.13) | 2.03 (0.55, 7.53) | 1.42 (0.29, 6.95) | 1.35 (0.31, 5.95) | 1.78 (0.24, 12.9) |
| White (reference) | 1.0 p=0.97 |
1.0 p=0.30 |
1.0 p=0.045 |
1.0 p=0.06 |
1.0 P=0.0002 |
1.0 p=0.29 |
| Education: | ||||||
| HS graduate | 0.74 (0.30, 1.82) | 1.92 (0.12, 31.8) | 1.23 (0.20, 7.46) | 0.87 (0.16, 4.79) | 1.75 (0.56, 5.41) | 0.60 (0.12, 2.90) |
| College | 0.92 (0.38, 2.26) | 4.26 (0.29, 63.5) | 0.93 (0.19, 4.55) | 2.05 (0.41,10.1) | 1.26 (0.44, 3.59) | 0.82 (0.21, 3.26) |
| College graduate | 0.66 (0.25, 1.76) | 3.14 (0.20, 50.5) | 0.43 (0.06, 3.07) | 0.60 (0.09, 3.88) | 1.27 (0.39, 4.14) | 0.33 (0.06, 1.94) |
| <High school (reference) | 1.0 p=0.63 |
1.0 p=0.19 |
1.0 p=0.33 |
1.0 p=0.04 |
1.0 p=0.59 |
1.0 p=0.30 |
| Weight change (+5 kg/y) | 1.08 (0.99, 1.17) p=0.08 |
1.01 (0.86, 1.20) p=0.87 |
0.83 (0.73, 0.94) p=0.01 |
0.92 (0.82, 1.02) p=0.12 |
1.14 (1.04, 1.25) p=0.005 |
1.08 (0.93, 1.25) p=0.34 |
| Acid suppression | 1.19 (0.63, 2.27) p=0.59 |
0.51 (0.13, 1.92) p=0.24 |
NA | NA | NA | NA |
| hsCRP | 0.47 (0.33, 0.68) p=0.0006 |
0.80 (0.45, 1.41) p=0.39 |
NA | NA | NA | NA |
| Multivitamin supplements/wk: | ||||||
| <7 | 1.02 (0.52, 1.96) | 0.88 (0.33, 2.34) | 0.87 (0.30, 2.51) | 0.97 (0.38, 2.47) | 0.49 (0.23, 1.02) | 0.80 (0.19, 3.37) |
| 7-14 | 0.76 (0.43, 1.34) | 0.93 (0.36, 2.42) | 0.61 (0.23, 1.66) | 0.87 (0.38, 2.02) | 0.38 (0.19, 0.74) | 1.01 (0.27, 3.75) |
| 14+ | 0.51 (0.24, 1.07) | 0.63 (0.16, 2.59) | 0.73 (0.20, 2.68) | 0.73 (0.28, 1.91) | 0.38 (0.16, 0.91) | 0.68 (0.16, 2.82) |
| 0 (reference) | 1.0 p=0.11 |
1.0 p=0.77 |
1.0 p=0.66 |
1.0 p=0.85 |
1.0 p=0.004 |
1.0 p=0.71 |
| Vitamin D supplements/wk: | NA | NA | NA | NA | ||
| <7 | 0.47 (0.21, 1.04) | 0.38 (0.10, 1.37) | ||||
| 7+ | 0.50 (0.26, 0.95) | 0.93 (0.27, 3.25) | ||||
| 0 (reference) | 1.0 p=0.01 |
1.0 p=0.15 |
||||
| Vitamin B12 supplements/wk: | NA | NA | NA | NA | NA | NA |
| <7 | ||||||
| 7+ | ||||||
| 0 (reference) | ||||||
| Calcium supplements/wk: | NA | NA | NA | NA | NA | |
| <7 | 0.38 (0.02, 5.89) | |||||
| 7-14 | 1.19 (0.37, 3.83) | |||||
| 14+ | 0.91 (0.22, 3.72) | |||||
| 0 (reference) | 1.0 p=0.45 |
*
P-values reflect test for overall significance of each variable.