. Author manuscript; available in PMC: 2012 Sep 27.

Published in final edited form as: Am J Obstet Gynecol. 2009 Jun;200(6):595–609. doi: 10.1016/j.ajog.2009.04.005

TABLE 2.

Modified Jadad score for assessment of methodological quality of included studies

Item	Mittendorf, 1997^{29, 30}		Crowther, 2003³¹	Magpie, 2007³²	Marret, 2007^{33, 34}	Rouse, 2008³⁵
Item	Tocolytic arm	Neuroprotective arm	Crowther, 2003³¹	Magpie, 2007³²	Marret, 2007^{33, 34}	Rouse, 2008³⁵
Randomization	Yes	Yes	Yes	Yes	Yes	Yes
Method to generate randomization clear and appropriate	Yes	Yes	Yes	Yes	Yes	Yes
Double blind	No	Yes	Yes	Yes	Yes	Yes
Methods for blinding appropriate	No	Yes	Yes	Yes	Yes	Yes
Method of allocation concealment^a	No	Unreported	Adequate	Adequate	Adequate	Adequate
Description of withdrawal or dropout	No	No	Yes	Yes	Yes	Yes
Completeness of follow-up of randomized fetuses (%)^b	Unreported	Unreported	98.9	47.4^c	98.5	95.6
Total score	2	4	8	7	8	8

Yes=1 point, No=zero points; Scores: 0=lowest quality, 8=highest quality

Adequate=2 points, no concealment of allocation or inadequate method or unreported=zero points

Follow-up ≥95%=1 point, follow-up <95% or unreported=zero points

For fetuses of all gestational ages and undelivered at randomization