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Fig. 1 | BMC Neurology

Fig. 1

From: Analysis of number needed to treat for droxidopa in patients with symptomatic neurogenic orthostatic hypotension

Fig. 1

NNT for improvement of ≥2 units (a) and ≥50 % (b) in OHSA Item 1 (Dizziness/Lightheadedness) Score*. NNT = number needed to treat; OHSA = Orthostatic Hypotension Symptom Assessment; RD = risk difference (between event rates for droxidopa and placebo). *Error bars depicting the 95 % CIs are provided for statistically significant NNT values

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