Appendix 1. MEDLINE search strategy

1 exp Polycystic Ovary Syndrome/
2 Polycystic Ovar$.tw.
3 PCOD.tw.
4 PCOS.tw.
5 (stein‐leventhal or leventhal).tw.
6 (ovar$ adj2 sclerocystic).tw.
7 (ovar$ adj2 degeneration).tw.
8 Ovar$ Polycystic.tw.
9 or/1‐8
10 exp Laparoscopy/
11 ovar$ surg$.tw.
12 (ovar$ adj2 resect$).tw.
13 (ovar$ adj2 drill$).tw.
14 laparoscop$.tw.
15 or/10‐14
16 9 and 15
17 randomized controlled trial.pt.
18 controlled clinical trial.pt.
19 randomized.ab.
20 placebo.tw.
21 clinical trials as topic.sh.
22 randomly.ab.
23 trial.ti.
24 (crossover or cross‐over or cross over).tw.
25 or/17‐24
26 exp animals/ not humans.sh.
27 25 not 26
28 16 and 27

Appendix 2. CENTRAL search strategy

1 exp Polycystic Ovary Syndrome/
2 Polycystic Ovar$.tw.
3 PCOD.tw.
4 PCOS.tw.
5 (stein‐leventhal or leventhal).tw.
6 (ovar$ adj2 sclerocystic).tw.
7 (ovar$ adj2 degeneration).tw.
8 Ovar$ Polycystic.tw.
9 or/1‐8
10 exp Laparoscopy/
11 ovar$ surg$.tw.
12 (ovar$ adj2 resect$).tw.
13 (ovar$ adj2 drill$).tw.
14 laparoscop$.tw.
15 or/10‐14
16 9 and 15

Appendix 3. PsycINFO search strategy

1 Polycystic Ovar$.tw.
2 PCOD.tw.
3 PCOS.tw.
4 (stein‐leventhal or leventhal).tw.
5 (ovar$ adj2 sclerocystic).tw.
6 (ovar$ adj2 degeneration).tw.
7 or/1‐6
8 ovar$ surg$.tw.
9 (ovar$ adj2 resect$).tw.
10 (ovar$ adj2 drill$).tw.
11 laparoscop$.tw.
12 or/8‐11
13 7 and 12

Appendix 4. EMBASE search strategy

1 ovary polycystic disease/
2 Polycystic Ovar$.tw.
3 PCOD.tw.
4 PCOS.tw.
5 (stein‐leventhal or leventhal).tw.
6 (ovar$ adj2 sclerocystic).tw.
7 (ovar$ adj2 degeneration).tw.
8 Ovar$ Polycystic.tw.
9 or/1‐8
10 exp Laparoscopy/
11 ovar$ surg$.tw.
12 (ovar$ adj2 resect$).tw.
13 (ovar$ adj2 drill$).tw.
14 laparoscop$.tw.
15 or/10‐14
16 Clinical Trial/
17 Randomized Controlled Trial/
18 exp randomization/
19 Single Blind Procedure/
20 Double Blind Procedure/
21 Crossover Procedure/
22 Placebo/
23 Randomi?ed controlled trial$.tw.
24 Rct.tw.
25 random allocation.tw.
26 randomly allocated.tw.
27 allocated randomly.tw.
28 (allocated adj2 random).tw.
29 Single blind$.tw.
30 Double blind$.tw.
31 ((treble or triple) adj blind$).tw.
32 placebo$.tw.
33 prospective study/
34 or/16‐33
35 case study/
36 case report.tw.
37 abstract report/ or letter/
38 or/35‐37
39 34 not 38
40 9 and 15 and 39

Appendix 5. Menstrual Disorders and Subfertility Trials Register search strategy

Database: MDSG
Search Strategy: <Inception until present>

Keywords CONTAINS "polycystic ovary morphology" or "polycystic ovary syndrome" or "PCOS" or Title CONTAINS "polycystic ovary morphology" or "polycystic ovary syndrome" or "PCOS"

AND

Keywords CONTAINS "laparoscopic" or "laparoscopic ovarian drilling" or "laparoscopic surgery" or "laparoscopic  surgical treatment" or "laparoscopic ovarian electrodrilling" or "ovarian drilling" or "ovarian resection" or "ovarian surgery" or "ovarian wedge resection" or "resection" or Title CONTAINS "laparoscopic" or "laparoscopic ovarian drilling" or "laparoscopic surgery" or "laparoscopic  surgical treatment" or "laparoscopic ovarian electrodrilling" or "ovarian drilling" or "ovarian resection" or "ovarian surgery" or "ovarian wedge resection" or "resection"