Table 5.

Comparison of Risk Factors Associated with Loss of More than 4°, 5°, or 6° of AVF over a 2-Year Period

Variables	Degrees of Loss
	>4°	>5°	>6°
	OR (95% CI)*	OR (95% CI)*	OR (95% CI)*
Demographics
Sex
Female	1.26 (0.88–1.80)	1.59 (1.05–2.38)	2.11 (1.31–3.90)
Medical history
History of stroke	1.25 (0.70–2.23)	1.89 (1.05–3.42)	2.04 (1.06–3.93)
Depression score per unit worse	1.04 (0.99–1.09)	1.07 (1.01–1.13)	1.07 (1.01–1.13)
Cognitive indicators
Attention per unit score increase	0.92 (0.85–1.00)	0.88 (0.81–0.97)	0.90 (0.81–0.99)
Trails A per 5 s increase	1.07 (1.02–1.13)	1.09 (1.03–1.15)	1.05 (0.99–1.12)
Trails B per 5 s increase	1.03 (1.01–1.05)	1.02 (1.00–1.04)	1.02 (1.01–1.04)
Visual indicators
Log visual acuity per 1 line loss	1.18 (1.00–1.38)	1.21 (1.02–1.45)	1.22 (1.00–1.49)
Visual field (center 20°, per point missed)	1.40 (1.17–1.69)	1.24 (1.05–1.46)	1.23 (1.03–1.45)

^*From a multivariate model in addition, adjusted for age and baseline average AVF.