Table 5.
Sex Differences in the association between dietary fiber and indicators of body composition in plausible sample, B(SE)
| Predictors | Fat mass (kg) | % Body Fat | BMI1 (kg/m2) | Waist Circum. (cm) |
|---|---|---|---|---|
| Males (n=40) | ||||
| Dietary Fiber (g) | −0.49(0.12)*** | −0.44(0.12)*** | −0.18(0.07)* | −0.42(0.18)* |
| Age (yrs) | 0.95(0.59) | 1.05(0.59)+ | 0.52(0.35) | 1.31(0.92) |
| Race (white=0, non-white=1) | −0.75(2.31) | −0.15(2.30) | 1.16(1.39) | 1.09(3.59) |
| Current Smoker (yes=1, no=0) | 5.56(2.07)* | 5.55(2.09)* | 1.90(1.26) | 6.58(3.27)+ |
| Physical Activity | −6.54(3.42)+ | −7.03(3.45)+ | −2.59(2.07) | −6.74(5.35) |
| Energy Intake (kcal) | 0.01(0.002)*** | 0.01(0.002)* | 0.002(0.002)+ | 0.01(0.003)* |
| Females (n=83) | ||||
| Dietary Fiber (g) | −0.14(0.07)* | −0.17(0.09)+ | −0.09(0.05) | −0.16(0.12) |
| Age (yrs) | 0.62(0.30)* | 0.69(0.41)+ | 0.17(0.23) | 0.46(0.50) |
| Race (white=0, non-white=1) | 0.45(1.21) | −0.77(1.65) | 0.03(0.93) | 0.08(2.02) |
| Current Smoker (yes=1, no=0) | −2.44(1.44)+ | −2.43(1.97) | −0.65(1.11) | −2.97(2.42) |
| Physical Activity | −1.67(1.17) | −0.57(1.59) | 0.71(0.89) | −0.58(1.95) |
| Energy Intake (kcal) | 0.01(0.002)*** | 0.01(0.002)* | 0.002(0.001) | 0.01(0.003)* |
NOTE: Model with fat mass (g) as dependent variable adjusted for fat free mass (g);
1
BMI = body mass index;
+
p<0.10,
*
p<0.05,
**
p<0.01,
***
p<0.001;
Waist Circum = average of 3 measures of waist circumference.