| Source: PubMed; searched on: Aug 10, 2018; results: 266 |
| #1 |
Search spine[Title] |
33,254 |
| #2 |
Search spinal[Title] |
116,580 |
| #3 |
Search vertebrae[Title] |
2,931 |
| #4 |
Search vertebral[Title] |
19,775 |
| #5 |
Search cervical[Title] |
96,827 |
| #6 |
Search Lumbar[Title] |
36,165 |
| #7 |
Search thoracic[Title] |
45,623 |
| #8 |
Search sacral[Title] |
5,639 |
| #9 |
Search pedicle[Title] |
6,641 |
| #10 |
Search (#1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 OR #8 OR #9) |
323,321 |
| #11 |
Search “hospital volumes”[Title/Abstract] |
133 |
| #12 |
Search “surgeon volumes”[Title/Abstract] |
75 |
| #13 |
Search “provider volumes”[Title/Abstract] |
25 |
| #14 |
Search “hospital volume”[Title/Abstract] |
1,565 |
| #15 |
Search “surgeon volume”[Title/Abstract] |
753 |
| #16 |
Search “provider volume”[Title/Abstract] |
137 |
| #17 |
Search “regionalization”[Title/Abstract] |
2,605 |
| #18 |
Search “regionalisation”[Title/Abstract] |
266 |
| #19 |
Search “Workload”[Title/Abstract] |
21,197 |
| #20 |
Search ((#11 OR #12 OR #13 OR #14 OR #15 OR #16 OR #17 OR #18 OR #19)) |
26,142 |
| #21 |
Search (#10 AND #20) |
266 |
| Source: Embase; searched on: Aug 10, 2018; results: 370 |
| #1 |
spine:ti |
40,879 |
| #2 |
vertebrae:ti |
3,115 |
| #3 |
vertebral:ti |
25,124 |
| #4 |
spinal:ti |
139,404 |
| #5 |
cervical:ti |
120,270 |
| #6 |
lumbar:ti |
44,142 |
| #7 |
thoracic:ti |
54,830 |
| #8 |
sacral:ti |
7,489 |
| #9 |
pedicle:ti |
7,811 |
| #10 |
#1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 OR #8 OR #9 |
394,810 |
| #11 |
“hospital volumes”:ab,ti |
199 |
| #12 |
“surgeon volumes”:ab,ti |
107 |
| #13 |
“provider volumes”:ab,ti |
29 |
| #14 |
“hospital volume”:ab,ti |
2,238 |
| #15 |
“surgeon volume”:ab,ti |
1,050 |
| #16 |
“provider volume”:ab,ti |
184 |
| #17 |
“regionalization”:ab,ti |
3,092 |
| #18 |
“regionalisation”:ab,ti |
337 |
| #19 |
“Workload”:ab,ti |
28,784 |
| #20 |
#11 OR #12 OR #13 OR #14 OR #15 OR #16 OR #17 OR #18 OR #19 |
35,227 |
| #21 |
#10 AND #20 |
370 |
| Source: The Cochrane Library; searched on: Aug 10, 2018; results: 71 |
| #1 |
spine:ti,ab,kw |
11,001 |
| #2 |
vertebrae:ti,ab,kw |
4,866 |
| #3 |
vertebral:ti,ab,kw |
3,320 |
| #4 |
spinal:ti,ab,kw |
19,384 |
| #5 |
cervical:ti,ab,kw |
13,736 |
| #6 |
lumbar:ti,ab,kw |
11,616 |
| #7 |
thoracic:ti,ab,kw |
10,442 |
| #8 |
sacral:ti,ab,kw |
896 |
| #9 |
pedicle:ti,ab,kw |
841 |
| #10 |
#1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 OR #8 OR #9 |
52,195 |
| #11 |
“hospital volumes”:ti,ab,kw |
2 |
| #12 |
“surgeon volumes”:ti,ab,kw |
2 |
| #13 |
“provider volumes”:ti,ab,kw |
1 |
| #14 |
“hospital volume”:ti,ab,kw |
59 |
| #15 |
“surgeon volume”:ti,ab,kw |
32 |
| #16 |
“provider volume”:ti,ab,kw |
3 |
| #17 |
“regionalization”:ti,ab,kw |
25 |
| #18 |
“regionalisation”:ti,ab,kw |
25 |
| #19 |
“Workload”:ti,ab,kw |
2,705 |
| #20 |
#11 OR #12 OR #13 OR #14 OR #15 OR #16 OR #17 OR #18 OR #19 |
2,807 |
| #21 |
#10 AND #20 |
71 |
