Table 3.
Univariate analysis and multivariate analysis for presence of ED
| Items | UVA | MVA1a,c | MVA2b,c | ||||||
|---|---|---|---|---|---|---|---|---|---|
| OR | 95% CI | P-value | OR | 95% CI | P-value | OR | 95% CI | P-value | |
| TT, ng/mL | 0.987 | 0.968–1.006 | 0.135 | – | – | – | – | – | – |
| BMI, kg/m2 | 1.173 | 1.046–1.300 | 0.022 | 1.201 | 1.114–1.288 | 0.005 | 1.221 | 1.120–1.323 | 0.001 |
| MetS (Yes vs. No) d | 1.213 | 1.197–1.231 | 0.005 | 1.323 | 1.265–1.383 | 0.001 | 1.354 | 1.272–1.436 | 0.002 |
| NO, μmol/L | 0.679 | 0.603–0.756 | 0.027 | 0.693 | 0.611–0.712 | 0.035 | 0.671 | 0.626–0.720 | 0.007 |
| E-selectin, ng/mL | 2.022 | 1.895–2.147 | 0.000 | 1.765 | 1.631–1.898 | 0.000 | 1.739 | 1.682–1.800 | 0.002 |
| Diet (PDI)e | 0.779 | 0.721–0.837 | 0.001 | 0.869 | 0.795–0.943 | 0.004 | – | – | – |
| Diet (hPDI)e | 0.602 | 0.546–0.661 | 0.001 | – | – | – | 0.784 | 0.690–0.878 | 0.000 |
Abbreviations: BMI body mass index, CI confidence interval, ED erectile dysfunction, hPDI healthful plant-based diet index, MetS metabolic syndrome, MVA multivariate analysis, NO nitric oxide, OR odds ratio, PDI overall plant-based diet index, TT total testosterone, UVA univariate analysis
aMultivariate analysis included PDI
bMultivariate analysis included hPDI
c Adjusting for age, partner age, duration of partnership, frequency of intercourse, residence, occupational and educational status, income, and lifestyle
d MetS was defined following the criterion shown in Supplementary Table 2, in Additional file 1
e PDI and hPDI were converted from FFQ following the method described in the method section