Table 3.
Multivariable linear regression analysis examining the association between physical activity and bilirubin (outcome variable) among insulin sensitive and insulin resistant participants, NHANES 2003-2006
| |
Δ (95% CI) in Bilirubin (mg/dL)
†
|
|||
|---|---|---|---|---|
| Variable |
Insulin sensitive |
P |
Insulin resistant |
P |
| (HOMA ≤ 2.6) (n = 1,238) | (HOMA > 2.6) (n = 832) | |||
| MVPA
‡
|
0.02 (-0.02 to 0.07) |
0.38 |
0.08 (0.001 to 0.16) |
0.04 |
|
Covariates |
|
|
|
|
| Age, 1 yr older |
-0.0003 (-0.001 to 0.001) |
0.59 |
0.001 (-0.00007 to 0.002) |
0.06 |
| Female vs. Male |
-0.19 (-0.22 to -0.16) |
<0.001 |
-0.15 (-0.20 to -0.11) |
<0.001 |
| Race-Ethnicity |
|
|
|
|
| Mexican American vs. White |
-0.02 (-0.07 to 0.02) |
0.35 |
-0.03 (-0.08 to 0.01) |
0.21 |
| Black vs. White |
-0.02 (-0.07 to 0.01) |
0.24 |
-0.05 (-0.10 to -0.004) |
0.03 |
| Other vs. White |
-0.01 (-0.09 to 0.06) |
0.71 |
-0.05 (-0.15 to 0.05) |
0.35 |
| BMI, 1 kg/m2 higher |
-0.006 (-0.01 to -0.002) |
0.006 |
-0.004 (-0.006 to -0.001) |
0.003 |
| 1+ Comorbidities vs. None |
0.003 (-0.04 to 0.04) |
0.88 |
0.02 (-0.02 to 0.06) |
0.33 |
| Cotinine, 1 ng/mL higher |
-0.0002 (-0.0003 to -0.00005) |
0.01 |
-0.0001 (-0.0002 to 0.00007) |
0.25 |
| PIR, 1 unit higher | -0.001 (-0.01 to 0.01) | 0.86 | 0.002 (-0.01 to 0.01) | 0.74 |
†2 multivariable linear regression models were computed; 1 for insulin sensitive participants and another for insulin resistant individuals.
‡Expressed as a 30 unit/min change.
MVPA = Moderate-to-vigorous physical activity.
BMI = Body mass index.
PIR = Poverty-to-Income Ratio.