Table 1.

Midodrine: randomized placebo-controlled trials

Author, year	n	Follow-up period	Endpoint	P
Ward et al[57], 1998	16	1 mo	TT	0.01
Perez-Lugones et al[58], 2001	61	6 mo	Syncope recurrence	< 0.01
Kaufmann et al[59], 2002	12	1 wk	TT	< 0.02
Qingyou et al[60], 2006	26	42 mo	TT	< 0.05

TT: Head-up tilt table test.