Study population: | Â |
---|---|
Were the groups clearly defined? | 8 studies unclear/no 29 studies yes |
Can selection bias sufficiently be excluded? 1 | 11 studies unclear/no 26 studies yes |
Did the immigrant groups and the majority population originate from the same source population? 2 | 2 studies unclear/no 35 studies yes |
Measurement: | Â |
Was the data collection adjusted for possible language problems or cultural differences3 | 24 studies unclear/no 13 studies yes |
Was use of primary medical care determined independently of immigrant status?4 | 28 studies unclear/no 9 studies yes |
Was immigrant status determined independently of primary medical care use?4 | 14 studies unclear/no 23 studies yes |
Analysis: | Â |
Were the results adjusted for potential confounders? | 11 studies unclear/no 26 studies yes |