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Table 16 Valsalva manoeuvre and clinical form

From: Rett syndrome: a wide clinical and autonomic picture

Valsalva Classical
(n = 86)
Z-RTT
(n = 19)
Hanefeld
(n = 12)
Congenital
(n = 1)
ARTT-NOS
(n = 17)
Mean (SD) 5.5 (9.8) 0.6 (0.7) 1.3 (1.9) 0.2 (−) 3 (7.8)
Range 0–53.2 0–2.1 0–6.8 0–32.8