Acetylcysteine for prevention of contrast-induced nephropathy after intravascular angiography: A systematic review and meta-analysis

Table 2 Summary of quality indicators for studies of acetylcysteine for prevention of contrast-induced nephropathy.

First Author	Jadad score	Inclusion/exclusion criteria specified	Randomization process described	Use of any blinding	Placebo-controlled	Reported loss to follow-up	Intention-to treat analysis	Potential important baseline differences	Power calculation
Allaqaband ²⁵	3	yes/no	yes	yes	yes	no	no	no	yes
Baker ²⁶	2	yes/yes	yes	no	yes	no	yes	no	yes
Briguori ²⁷	1	yes/no	yes	no	no	no	unclear	yes	no
Diaz-Sandoval ²⁸	4	yes/yes	yes	yes	no	yes	unclear	yes	no
Durham ²⁹	5	yes/yes	yes	yes	yes	yes	unclear	no	yes
Efrati ³⁰	4	yes/yes	no	yes	yes	yes	unclear	no	no
Fung ³¹	4	yes/yes	yes	no	no	no	yes	no	yes
Goldenberg ³²	5	yes/yes	yes	yes	yes	no	unclear	no	yes
Kay ³³	5	yes/yes	yes	yes	yes	yes	yes	no	yes
Kefer ³⁴	4	yes/yes	yes	yes	yes	yes	unclear	yes	no
MacNeill ³⁵	4	yes/yes	yes	no	yes	no	unclear	no	yes
Oldemeyer ³⁶	4	yes/yes	yes	yes	no	yes	unclear	no	no
Shyu ³⁷	3	yes/yes	yes	yes	no	yes	unclear	no	no
Vallero ³⁸	2	yes/yes	yes	no	no	no	unclear	yes	no