. Author manuscript; available in PMC: 2019 May 1.

Published in final edited form as: Am J Kidney Dis. 2018 Feb 2;71(5):677–689. doi: 10.1053/j.ajkd.2017.10.027

Table 6.

Associations of time to first attempted cannulation and first successful cannulation with unassisted and overall AVF maturation in cannulated subcohort, adjusted for basic demographic, case-mix, and ultrasound factors

	OR (95% CI)	P
Months from surgery to first attempted cannulation, patients on dialysis at time of AVF surgery
Unassisted AVF maturation, per additional month	0.81 (0.76–0.88)	< 0.001
Overall AVF maturation, per additional month	0.93 (0.89–0.98)	0.003
Weeks from 1^st to successful cannulation, cannulated subcohort
Unassisted AVF maturation, per additional week	0.87 (0.81–0.94)	<0.001
Overall AVF maturation, per additional week	0.88 (0.83–0.94)	<0.001

Note: Adjusted for age, black race, female sex, dialysis status at surgery, diabetes, AVF location, as well as AVF flow, diameter, and depth at week 6. Measurements from missed ultrasound examinations, occasional missing observations for race, and unresolved maturation outcomes were multiply imputed.

AVF, arteriovenous fistula; CI, confidence interval; OR, odds ratio