Search criteria for the systematic review: EMBASE
| Step | Database: EMBASE Search date: 30 April 2018 Time/Period: 1974–30 April 2018 | Number of papers |
| Keywords (including MeSH words) | ||
| 1 | Vitamin D/ or Vitamin D.mp | 109 558 |
| 2 | Vitamin D2.mp.(mp=title, abstract, heading word, drug trade name, original title, device manufacturer, drug manufacturer, device trade name, keyword, floating subheading word, candidate term word) | 1760 |
| 3 | Vitamin D3.mp.(mp=title, abstract, heading word, drug trade name, original title, device manufacturer, drug manufacturer, device trade name, keyword, floating subheading word, candidate term word) | 14 377 |
| 4 | 1 or 2 or 3 | 116 444 |
| 5 | Falls.mp.(mp=title, abstract, heading word, drug trade name, original title, device manufacturer, drug manufacturer, device trade name, keyword, floating subheading word, candidate term word) | 54 525 |
| 6 | Falls.mp. or falling/ | 73 654 |
| 7 | 5 or 6 | 73 654 |
| 8 | 4 and 7 | 2703 |
| 9 | fractures.mp. or fracture | 211 161 |
| 10 | fracture*.mp.(mp=title, abstract, heading word, drug trade name, original title, device manufacturer, drug manufacturer, device trade name, keyword, floating subheading word, candidate term word) | 357 706 |
| 11 | 9 or 10 | 357 706 |
| 12 | 4 and 11 | 15 955 |
| 13 | patient mobility/ or limited mobility/ or Mobility.mp. | 187 679 |
| 14 | mobility.mp.(mp=title, abstract, heading word, drug trade name, original title, device manufacturer, drug manufacturer, device trade name, keyword, floating subheading word, candidate term word) | 187 679 |
| 15 | 13 or 14 | 187 679 |
| 16 | 4 and 15 | 1046 |
| 17 | endurance/ or grip strength/ or physical performance/ or muscle strength/ or Physical Performance*.mp. or fitness/ | 129 167 |
| 18 | Physical Performance*.mp.(mp=title, abstract, heading word, drug trade name, original title, device manufacturer, drug manufacturer, device trade name, keyword, floating subheading word, candidate term word) | 20 383 |
| 19 | 17 or 18 | 129 167 |
| 20 | 4 and 19 | 1823 |
| 21 | muscle strength.mp. or muscle strength/ | 57 550 |
| 22 | muscle strength.mp.(mp=title, abstract, heading word, drug trade name, original title, device manufacturer, drug manufacturer, device trade name, keyword, floating subheading word, candidate term word) | 57 550 |
| 23 | 21 or 22 | 57 550 |
| 24 | 4 and 23 | 1302 |
| 25 | gait/ or gait*.mp. | 79 085 |
| 26 | 4 and 25 | 641 |
| 27 | mortality*.mp.(mp=title, abstract, heading word, drug trade name, original title, device manufacturer, drug manufacturer, device trade name, keyword, floating subheading word, candidate term word) (1 257 640) | 1 257 640 |
| 28 | 4 and 27 | 7397 |
| 29 | 8 or 12 or 16 or 20 or 24 or 26 or 28 | 24 342 |
| Limitations | ||
| 30 | limit 29 to (English language and (clinical trial or randomised controlled trial or controlled clinical trial or multicentre study or phase 1 clinical trial or phase 2 clinical trial or phase 3 clinical trial or phase 4 clinical trial)) | 4073 |
| 31 | limit 29 to (English language and (meta-analysis or ‘systematic review’)) | 944 |
| 32 | 30 or 31 | 4634 |