Table 1.
Search strategy (Ovid MEDLINE(R) 1946 to July week 4 2013)
| 1 |
Accidental falls/(12522) |
| 2 |
(Falls or faller$1 or fallen).tw. (27753) |
| 3 |
1 or 2 (33935) |
| 4 |
Exp Aged/ (2056836) |
| 5 |
(Senior$1 or elderly or older).tw. (335684) |
| 6 |
4 or 5 (2182495) |
| 7 |
Randomized controlled trial.pt. (319542) |
| 8 |
Controlled clinical trial.pt. (83511) |
| 9 |
Randomized.ab. (224781) |
| 10 |
Placebo.ab. (128471) |
| 11 |
Randomly.ab. (162506) |
| 12 |
Trial.ab. (231806) |
| 13 |
Groups.ab. (1073150) |
| 14 |
3 and 6 (13056) |
| 15 |
7 or 8 or 9 or 10 or 11 or 12 or 13 (1570937) |
| 16 |
Humans.sh. (12063808) |
| 17 |
15 and 16 (1190697) |
| 18 |
14 and 17 (2966) |
| 19 | Limit 18 to ed=20080511-20120223 (968) |