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. 2021 Aug 15;36(9):889–898. doi: 10.1007/s10654-021-00794-w

Table 2.

Characteristics of included studies

Total N = 180 Not conflated N = 134 Conflated = 46
Population
 General population 56 (31%) 51 (38%) 5 (11%)
 Primary care 12 (7%) 10 (8%) 2 (4%)
 Secondary/tertiary care 112 (62%) 73 (55%) 39 (85%)
Median impact factor (IQR) 9.5 (7.3–12.3) 10.7 (7.3–14.4) 8.6 (7.2–11.8)
Affiliated epidemiology department 68 (38%) 58 (43%) 10 (22%)
Affiliated statistics department 46 (26%) 33 (25%) 13 (28%)
Adherence to reporting guideline 11 (6%) 10 (8%) 1 (2%)