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Table 4 Number of articles screened and retrieved in Study 2

From: Novel citation-based search method for scientific literature: application to meta-analyses

  Original meta-analysis   Indirect citations (search 1) Indirect and direct citations (search 1 + 2)
  Articles screened Studies included Citing articles Articles screened Studies retrieved Articles screened Studies retrieved
Mehrabi [35] 4,148 29 170 1,113 (27) 29 (100) 1,383 (33) 29 (100)
Pathak [36] 543 6 1,437 584 (108) 6 (100) 886 (163) 6 (100)
Viswanathan [37] 2,749 6 74 627 (23) 6 (100) 689 (25) 6 (100)
Vrablik [38] 7,771 3 28 68 (1) 3 (100) 81 (1) 3 (100)
vanWely [39] 894 18 106 444 (50) 18 (100) 615 (69) 18 (100)
Schuit [40] 39 13 171 1,221 (3,131) 12 (92) 1,385 (3,551) 13 (100)
Deng [41] 362 9 928 533 (147) 8 (89) 1,726 (477) 9 (100)
Nwachuku [42] 464 15 62 404 (87) 13 (87) 502 (108) 15 (100)
Gu [43] 764 19 104 719 (94) 16 (84) 908 (119) 19 (100)
SanLorenzo [44] 3,529 19 67 296 (08) 15 (79) 468 (13) 19 (100)
Al-Wassia [45] 166 7 8 32 (19) 4 (57) 52 (31) 7 (100)
Elshaer [46] 750 30 35 210 (28) 21 (70) 235 (31) 29 (97)
Mumme [47] 701 21 55 271 (39) 19 (90) 468 (67) 20 (95)
Hazlewood [48] 1,463 35 897 861 (59) 28 (80) 3,162 (216) 33 (94)
Sheyin [49] 221 17 40 180 (81) 16 (94) 392 (177) 16 (94)
Yuan [50] 7,175 14 51 490 (7) 10 (71) 596 (8) 13 (93)
Elmariah [51] 1,934 14 3,870 599 (31) 5 (36) 836 (43) 13 (93)
Cheelo [52] 1,192 11 112 919 (77) 9 (82) 1,017 (85) 10 (91)
Gu [53] 326 18 14 59 (18) 13 (72) 233 (71) 16 (89)
Saleh [54] 1,480 14 49 964 (65) 12 (86) 1,055 (71) 12 (86)
Emdin [55] 10,598 45 3,223 395 (4) 26 (58) 6,116 (58) 36 (80)
Sayegh [56] 594 22 69 529 (89) 14 (64) 759 (128) 17 (77)
Kamper [57] 6,189 41 96 857 (14) 28 (68) 1,227 (20) 31 (76)
Taioli [58] 98 24 85 441 (450) 16 (67) 595 (607) 18 (75)
Sharpe [59] 3,875 7 92 886 (23) 5 (71) 911 (24) 5 (71)
Zhang [60] 468 7 221 140 (30) 5 (71) 198 (42) 5 (71)
Siddiqui [61] 3,119 13 129 824 (26) 8 (62) 1,002 (32) 9 (69)
Mair-Jenkins [24] 1,449 32 75 971 (67) 22 (69) 1,086 (75) 22 (69)
Bonitsis [62] 795 52 117 937 (118) 30 (58) 1,489 (187) 34 (65)
Williams [23] 1,976 19 21 95 (5) 10 (53) 186 (9) 12 (63)
Souto [63] 4,527 23 580 913 (20) 12 (52) 1,372 (30) 14 (61)
Zhen [64] 742 25 59 215 (29) 13 (52) 290 (39) 15 (60)
Shan [65] 243 19 60 289 (119) 9 (47) 344 (142) 11 (58)
Marcuzzi [66] 5,009 15 85 739 (15) 7 (47) 851 (17) 8 (53)
Lipinski [67] 824 17 420 531 (64) 6 (35) 610 (74) 9 (53)
Stevens [68] 400 6 62 536 (134) 3 (50) 551 (138) 3 (50)
Bernstein [69] 1,837 53 98 376 (20) 19 (36) 505 (27) 22 (42)
Avni [20] 5,365 103 104 698 (13) 29 (28) 1,259 (23) 39 (38)
Kumar [21] 573 16 101 926 (162) 5 (31) 1,013 (177) 5 (31)
Fazeli [22] 1,195 5 4 7 (1) 1 (20) 7 (1) 1 (20)
Brydges [19] 11,628 33 63 347 (03) 4 (12) 391 (3) 6 (18)
McNally [18] 2,453 88 45 374 (15) 6 (7) 399 (16) 9 (10)
Median 1,194 18  85 530 (29)  12 (69) 652 (50) 13 (79)
Mean 2,396 23  336 539 (58)a  13 (65) 901 (90)a 15 (75)
  1. Values in parentheses are the number of articles screened or studies retrieved as percentages of the numbers in the original meta-analyses. aCalculated after removing outlier [40]