Skip to main content

Table 1 Search terms used to identify studies from MEDLINE since the inception to July 2019

From: Analysis and reporting of stratified cluster randomized trials—a systematic survey

1

randomized controlled trial.pt. (485792)

2

animals/ (6439569)

3

humans/ (17863499)

4

2 not (2 and 3) (4567683)

5

1 not 4 (474298)

6

(clustersadj2randomi ).tw. (203)

7

((communitadj2intervention) or(communitadj2randomi)).tw. (7588)

8

grouprandomi.tw. (3177)

9

6 or 7 or 8 (10908)

10

intervention?.tw. (861625)

11

cluster analysis/ (59383)

12

health promotion/ (70103)

13

program evaluation/ (59930)

14

health education/ (59114)

15

10 or 11 or 12 or 13 or 14 (1051673)

16

9 or 15 (1053569)

17

16 or 5 (1434924)

18

16 and 5 (92943)

19

strati*.mp. (168454)

20

18 and 19 (2686)