Ali et al. [16]
|
2007
|
Computer-generated random numbers
|
Single blind
|
Yes
|
3
|
Sealed envelopes
|
Yes
|
Hoole et al. [17]
|
2009
|
Computer-generated random numbers
|
Single blind
|
Yes
|
3
|
Sealed envelopes
|
No
|
Walsh et al. [18]
|
2009
|
Computer-generated random numbers
|
Unclear
|
Yes
|
3
|
Sealed envelopes
|
Yes
|
Walsh et al. [19]
|
2010
|
Computer-generated random numbers
|
Unclear
|
Yes
|
3
|
Sealed envelopes
|
Yes
|
Rahman et al. [20]
|
2010
|
Computer-generated random numbers
|
Double blind
|
Yes
|
5
|
Sealed envelopes
|
Yes
|
Choi et al. [21]
|
2010
|
Computer-generated randomization table
|
Unclear
|
Yes
|
3
|
Unclear
|
Yes
|
Thielmann et al. [22]
|
2010
|
Unclear
|
Single blind
|
Yes
|
2
|
Unclear
|
Yes
|
Zimmerman et al. [23]
|
2011
|
A block randomization generated by the study coordinator
|
Single blind
|
Yes
|
2
|
Sealed envelopes
|
Yes
|
Lucchinette et al. [24]
|
2012
|
Computer-generated random numbers
|
Unclear
|
Yes
|
3
|
Sealed envelopes
|
Yes
|
Young et al. [25]
|
2012
|
A block randomization using online randomization sequence generator
|
Double blind
|
Yes
|
5
|
Sealed envelopes
|
Yes
|