Table 6.
Risk of bias in included studies
|
Study Name |
Abramovay et al., 1999 |
Celbis et al., 2012 |
Moravcová, 2012 |
Ohene, 2005 |
Olate et al., 2011 |
Olate et al., 2012 |
Webb et al., 2011 |
||
|---|---|---|---|---|---|---|---|---|---|
|
Study population criteria: Does the document describe the source population in replicable detail? |
Y |
Y |
Y |
Y |
N |
Y |
Y |
Y |
Y |
|
Study population criteria: Does the document list all inclusion and exclusion criteria for participation? |
Y |
N |
Y |
Y |
N |
N |
N |
Y |
N |
|
Prospective study: Was the study prospective (ie the sample was selected prior to the onset of gang membership)? |
N |
N |
N |
N |
N |
N |
N |
N |
N |
|
Outcome descriptor: Were the gang membership criteria described in replicable detail? |
N |
N |
Y |
Y |
Y |
Y |
Y |
Y |
Y |
|
Predictor/correlate description: Were all predictors/correlates described in replicable detail? |
N |
N |
Y |
N |
Y |
N |
Y |
Y |
Y |
|
Predictor/correlate validity: Were all measures of the predictors/correlates based on a validated measure? |
N |
N |
Y |
N |
N |
N |
UC |
N |
N |
|
Predictor/correlate timing: Were all predictors/correlates either measured before the onset of gang membership or measured retrospectively to a time prior to gang membership? |
N |
N |
N |
N |
N |
N |
N |
N |
N |
|
Selective analysis reporting: was the study free from analysis reporting bias? |
UC |
UC |
UC |
UC |
UC |
UC |
UC |
UC |
UC |