Table 4.

Final multivariable linear regression model of significant continuous risk factors on logarithm of ED score — resulting changes in ED score from variation in risk factors.

Risk factor	Parameter estimate β [95% CI]*	Variation in risk factor	Resulting ΔED score (no-ED)†	Resulting ΔED score (mild- ED)†	Resulting ΔED score (mild-moderate-ED)†	Resulting ΔED score (moderate-ED)†	Resulting ΔED score (severe-ED)†
Age	−0.008 [−0.0003, −0.016]	Increased 10 years	−1.8	−1.5	−1.1	−0.7	−0.5
Toe-brachial index	0.422 [0.019, 0.826]	Decreased 1 SD‡ (0.17)	−1.6	−1.3	−1.0	−0.7	−0.4
Systolic blood pressure	−0.008 [−0.004, −0.012]	Increased 10mmHg	−1.8	−1.5	−1.1	−0.7	−0.5

^*Overall model adjusted R² = 0.19, F-statistic = 15.4, p < 0.001

^†No-ED (range 22–25) represented by ED score = 23.5, mild-ED (range 17–21) = 19, mild-moderate-ED (range 12–16) = 14, moderate-ED (range 8–11) = 9.5, severe-ED (range 5–7) = 6

^‡SD = standard deviation