Table 3.

Predictive factors associated with good final visual acuity outcome (VA > 20/40).

Factor	p	OR (95% CI)
Age at onset per 1 year	0.142	0.907 (0.80–1.03)
Female gender versus male	0.993	1.009 (0.14–7.21)
BMI at onset	0.044	0.734 (0.54–0.99)
Serum AQP4-antibody positive versus negative	0.001	0.004 (0.00–0.12)
Bilateral affected versus unilateral	0.008	0.042 (0.00–0.43)
logMAR VA at onset	0.467	0.792 (0.42–1.48)
Time window from onset to start of PE therapy per 1 day	0.002	0.790 (0.68–0.91)

Multivariate generalised estimating equation analyses with final visual acuity (VA) outcome (VA > 20/40 versus VA ⩽ 20/40) as dependent variable (working correlation matrix autoregressive of the first order; n = 55 eyes of 37 subjects).

Bold, p < 0.05.

CI, confidence interval; AQP4, aquaporin-4; BMI, body mass index; logMAR, log of the minimum angle of resolution; OR, odds ratio; PE, plasma exchange; VA, visual acuity.