Introduction
Materials and methods
Sample creation
Variables of interest
Statistical analysis
Ethics approval
Results
Country of origin
Characteristics | n = 838, n (%) |
---|---|
Continent | |
North America | 485 (57.9%) |
Europe | 218 (26.0%) |
Asia | 123 (14.7%) |
Australia | 5 (0.6%) |
South America | 6 (0.7%) |
Africa | 1 (0.1%) |
Countries’ level of income | |
High | 788 (94.0%) |
Medium high | 41 (4.9%) |
Low medium | 9 (1.1%) |
Low | 0 (0%) |
Country | |
United States | 461 (55.0%) |
France | 49 (5.8%) |
Italy | 47 (5.6%) |
South Korea | 39 (4.7%) |
Sweden | 34 (4.1%) |
Canada | 24 (2.9%) |
Turkey | 22 (2.6%) |
Taiwan | 17 (2.0%) |
Other | 145 (17.3%) |
Journal | |
Journal of Minimally Invasive Gynecology | 151 (18.0%) |
Gynecologic Oncology | 105 (12.5%) |
International Journal of Gynecological Cancer | 60 (7.2%) |
International Urogynecology Journal | 60 (7.2%) |
Female Pelvic Medical Research | 55 (6.6%) |
American Journal of Obstetrics and Gynecology | 38 (4.5%) |
Obstetrics and Gynecology | 37 (4.4%) |
Archives of Gynecology and Obstetrics | 24 (2.9%) |
Acta Obstetrica Gynecologica Scandinavica | 21 (2.5) |
European Journal of Gynecology Obstetrics and Reproductive Biology | 21 (2.5) |
Taiwan Journal of Obstetrics and Gynecology | 19 (2.3%) |
Fertility Sterility | 17 (2.0%) |
Others | 230 (27.4%) |
Publication Year | 2015 [2012–2019] |
Total citations | 10 [3–27] |
Citations per year | 1.9 [0.7–3.8] |
Relative citation ratio | 0.9 [0.3–1.9] |
Field citation ratio | 3.0 [2.5–3.8] |
Impact factor | 4.3 [1.9–5.3] |
Subject | |
Oncology | 344 (41.1%) |
Benign gynecology | 176 (21.0%) |
Urogynecology | 156 (18.6%) |
General | 94 (11.2%) |
Endometriosis | 27 (3.2%) |
Technique | 25 (3.0%) |
Fertility | 8 (1.0%) |
Obstetrics (cervical cerclage) | 8 (1.0%) |
Methodology | |
Retrospective | 394 (47.0%) |
Prospective | 177 (21.1%) |
Case reports | 79 (9.4%) |
Review | 93 (11.0%) |
Case series | 44 (5.3%) |
Randomized controlled trial | 30 (3.6%) |
Video | 20 (2.4%) |
Meta-analysis | 1 (0.1%) |
LMIC context
Variable | Low and middle income (n = 50) | High income (n = 788) | p value |
---|---|---|---|
Citations per year | 0.6 [0–1.9] | 2.0 [0.8–3.9] | < 0.001 |
Relative citation ratio | 0.3 [0–1] | 0.9 [0.3–1.9] | < 0.001 |
Field citation ratio | 2.5 [1.8–3.3] | 3.0 [2.5–3.9] | < 0.001 |
Total citations number | 3 [0–11] | 11 [3–29] | < 0.001 |
Publication year | 2017 [2015–2020] | 2015 [2012–2019] | 0.002 |
Journal’s impact factor | 1.9 [0–4.3] | 4.3 [1.9–5.3] | < 0.001 |
Subject | < 0.001 | ||
Benign | 20 (40.0%) | 156 (19.8%) | |
Endometriosis | 4 (8.0%) | 23 (2.9%) | |
Fertility | 2 (4.0%) | 6 (0.8%) | |
General | 2 (4.0%) | 92 (11.7%) | |
Obstetrics | 0 (0%) | 8 (1.0%) | |
Oncology | 16 (32.0%) | 328 (41.6%) | |
Technique | 1 (2.0%) | 24 (3.0%) | |
Urogynecology | 5 (10.0%) | 151 (19.2%) | |
Continent | < 0.001 | ||
North America | 0 (0%) | 485 (61.5%) | |
Europe | 0 (0%) | 218 (27.7%) | |
Asia | 43 (86.0%) | 80 (10.2%) | |
Australia | 0 (0%) | 5 (0.6%) | |
South America | 6 (12.0%) | 0 (0%) | |
Africa | 1 (2.0%) | 0 (0%) | |
Methodology | < 0.001 | ||
Retrospective | 24 (48.0%) | 370 (47.0%) | |
Prospective | 2 (4.0%) | 175 (22.2%) | |
Case report | 11 (22.0%) | 68 (8.6%) | |
Review | 4 (8.0%) | 89 (11.3%) | |
Case series | 8 (16.0%) | 36 (4.6%) | |
Randomized controlled trial | 0 (0%) | 30 (3.8%) | |
Video | 1 (2.0%) | 19 (2.4%) | |
Meta-analysis | 0 (0%) | 1 (0.1%) |
Research subject and methodology
Publishing journals
Bibliometrics
Variable | 90th (n = 84) | < 90th (n = 754) | p value |
---|---|---|---|
Citations per year | 9.4 [7.8–12.5] | 1.6 [0.6–3.0] | < 0.001 |
Relative citation ratio | 4.6 [3.6–5.7] | 0.7 [0.2–1.5] | < 0.001 |
Field citation ratio | 3.6 [3.1–4.5] | 2.9 [2.4–3.8] | < 0.001 |
Total citations number | 85 [53–114] | 9 [2–20] | < 0.001 |
Publication year | 2013 [2009–2017] | 2016 [2013–2019] | < 0.001 |
Journal’s impact factor | 5.3 [4.3–7.6] | 4.3 [1.9–4.6] | < 0.001 |
Subject | 0.001 | ||
Benign | 16 (19.0%) | 160 (21.2%) | |
Endometriosis | 2 (2.4%) | 25 (3.3%) | |
Fertility | 4 (4.8%) | 4 (0.5%) | |
General | 9 (10.7%) | 85 (11.3%) | |
Obstetrics | 0 (0%) | 8 (1.1%) | |
Oncology | 45 (53.6%) | 299 (39.7%) | |
Technique | 1 (1.2%) | 24 (3.2%) | |
Urogynecology | 7 (8.3%) | 149 (19.8%) | |
Continent | 0.044 | ||
North America | 62 (73.8%) | 423 (56.1%) | |
Europe | 15 (17.9%) | 203 (26.9%) | |
Asia | 6 (7.1%) | 117 (15.5%) | |
Australia | 1 (1.2%) | 4 (0.5%) | |
South America | 0 (0%) | 6 (0.8%) | |
Africa | 0 (0%) | 1 (0.1%) | |
Country’s level of income | 0.311 | ||
High | 82 (97.6%) | 706 (93.6%) | |
Medium high | 2 (2.4%) | 39 (5.2%) | |
Low medium | 0 (0%) | 9 (1.2%) | |
Low | 0 (0%) | 0 (0%) | |
Methodology | 0.003 | ||
Retrospective | 46 (54.8%) | 348 (46.2%) | |
Prospective | 20 (24.8%) | 157 (20.8%) | |
Case report | 1 (1.2%) | 78 (10.3%) | |
Review | 7 (8.4%) | 86 (11.4%) | |
Case series | 2 (2.4%) | 42 (5.6%) | |
Randomized controlled trial | 7 (9.5%) | 22 (2.9%) | |
Video | 0 (0%) | 20 (2.7%) | |
Meta-analysis | 0 (0%) | 1 (0.1%) |
Variable | Adjusted odds ratio (95% confidence interval) | p value |
---|---|---|
Publication year | 0.93 (0.88–0.98) | 0.018 |
Impact factor | 1.30 (1.16–1.41) | < 0.001 |
Subject | 0.027 | |
Other | Ref | |
Oncology | 1.73 (1.06–2.81) | |
Continent | 0.096 | |
Other | Ref | |
North America | 1.61 (0.91–2.84) | |
Design | 0.005 | |
Other | Ref | |
Randomized controlled trial | 3.67 (1.47–9.16) |
Timeline context
Variable | < 2015 (n = 351) | ≥ 2015 (n = 487) | p value |
---|---|---|---|
Citations per year | 2.5 [1.1–4.6] | 1.5 [0.4–3.0] | < 0.001 |
Relative citation ratio | 1.3 [0.6–2.4] | 0.6 [0.1–1.4] | < 0.001 |
Field citation ratio | 3.1 [2.7–3.7] | 2.9 [2.3–3.9] | < 0.001 |
Total citation number | 27 [11–48] | 5 [1–12] | < 0.001 |
Journal’s impact factor | 4.5 [2.5–5.3] | 4.2 [1.9–4.6] | < 0.001 |
Subject | < 0.001 | ||
Benign | 81 (23.1%) | 95 (19.5%) | |
Endometriosis | 9 (2.6%) | 18 (3.7%) | |
Fertility | 0 (0%) | 8 (1.6%) | |
General | 49 (14.0%) | 45 (9.2%) | |
Obstetrics | 5 (1.4%) | 3 (0.6%) | |
Oncology | 146 (41.6%) | 198 (40.7%) | |
Technique | 14 (4.0%) | 11 (2.3%) | |
Urogynecology | 47 (13.4%) | 109 (22.4%) | |
Continent | < 0.001 | ||
North America | 245 (69.8%) | 240 (49.3%) | |
Europe | 77 (21.9%) | 141 (29.0%) | |
Asia | 27 (7.7%) | 96 (19.7%) | |
Australia | 2 (0.6%) | 3 (0.6%) | |
South America | 0 (0%) | 6 (1.2%) | |
Africa | 0 (0%) | 1 (0.2%) | |
Country’s level of income | 0.002 | ||
High | 342 (97.4%) | 446 (91.6%) | |
Medium high | 8 (2.3%) | 33 (6.8%) | |
Low medium | 1 (0.3%) | 8 (1.6%) | |
Low | 0 (0%) | 0 (0%) | |
Methodology | < 0.001 | ||
Retrospective | 158 (45.0%) | 236 (48.5%) | |
Prospective | 72 (20.5%) | 105 (21.6%) | |
Case reports | 35 (10.0%) | 44 (9.0%) | |
Reviews | 52 (14.8%) | 41 (8.4%) | |
Case series | 22 (6.3%) | 22 (4.5%) | |
Randomized controlled trial | 8 (2.3%) | 22 (4.5%) | |
Video | 3 (0.9%) | 17 (3.5%) | |
Meta-analysis | 1 (0.3%) | 0 (0%) |