Study design | Intervention: population level | Outcomes: health related | Outcomes: inequalities | |
---|---|---|---|---|
Search number | 1 | 2 | 3 | 4 |
Search strategy reference (including deviations) | Terms from McMaster University [31] and SIGN [32] (plus specific umbrella review terminology) | Terms from Bambra et al. [27] (changed positional operator (adj) from 3 to 8 and included additional search term using health adj8 to intervention terminology) | Terms from Cairns et al. [22] | Terms from Bambra et al. [17] (excluding fluoridation and water supply, access to health care, public transport and neighbourhood crime terminology) |
Search strategy details in Additional file 2 including deviations from | Lines 1–6 (excluding animal studies—lines 11–13) | Lines 7 to 10 | Lines 15 and 16 | Lines 17 and 18 |
Number of hits | 355,412 | 8,821 | 8,550 | 1,724 |
 Target papers | ||||
 Bambra et al. [17] | ✓ | ✓ | ✓ | ✓ |
 Main et al. [13] | ✓ | ✓ | ✓ | ✓ |
 Oldroyd et al. [35] | ✓ | ✓ | ✓ | ✓ |