Author, year | Country study conducted | Study design | Test(s) accessed directly | Number patients included (total, n) | DA group, n | Comparator group, n |
---|---|---|---|---|---|---|
Adang, 199423 | Netherlands | Cross-sectional | Gastroscopy | 2900 | 1205 | 1695 |
Aljebreen, 201324 | Saudi Arabia | Cross-sectional | Gastroscopy | 508 | 147 | 361 |
Apthorp, 199871 | UK | Cross-sectional | MRI | 159 | 159 | – |
Arumugam, 200050 | UK | Non-randomised trial | Flexible sigmoidoscopy or barium enema | 262 | 262 | – |
Balaguer, 200551 | Spain | Cross-sectional | Colonoscopy | 350 | 108 | 242 |
Barton, 198783 | UK | Cross-sectional | Radiology | 530 | 530 | – |
Basnyat, 200252 | UK | Cross-sectional | Flexible sigmoidoscopy | 706 | 706 | – |
Boulton-Jones, 200325 | UK | Cross-sectional | Gastroscopy | 1000 | 1000 | – |
Broe, 201326 | Ireland | Cross-sectional | Gastroscopy | 4262 | 4262 | – |
Bytzer, 199627 | Denmark | Cohort | Gastroscopy | 1233 | 1026 | 207 |
Connor, 199868 | UK | Cohort | Ultrasound | 82 | 82 | – |
Curtin, 199278 | UK | Cohort | Mammography | 361 | 361 | – |
de Vries, 201182 | Netherlands | Cohort | Transvaginal ultrasound | 89 | 89 | – |
Donald, 198553 | UK | Cohort | Proctoscopy and sigmoidoscopy | 1458 | 1458 | – |
Dougall, 200054 | UK | Cross-sectional | Colonoscopy | 84 | 84 | – |
Froehlich, 199728 | Switzerland | Cross-sectional | Gastroscopy | 611 | 472 | 139 |
Gear, 198029 | UK | Cross-sectional | Gastroscopy | 346 | 346 | – |
Gear, 198930 | UK | Cross-sectional | Gastroscopy | 8781 | 8781 | – |
Gimeno Garcia, 201255 | Spain | Cross-sectional | Colonoscopy | 1004 | 230 | 774 |
Gough-Palmer, 200972 | UK | Cohort | MRI | Not stated | Not stated | – |
Goy, 198631 | Australia | Cross-sectional | Gastroscopy | 8270 | 1409 | 6861 |
Guldbrandt, 201465 | Denmark | Cohort | CT | 648 | 648 | – |
Heaney, 199832 | UK | Cross-sectional | Gastroscopy | 1872 | 1872 | – |
Hitchins, 201456 | UK | Cross-sectional | Colonoscopy | 174 | 174 | – |
Holdstock, 197933 | UK | Cross-sectional | Gastroscopy | 1805 | 1077 | 728 |
Hughes-Anderson, 200276 | Australia | Cohort | Gastroscopy, colonoscopy, flexible sigmoidoscopy | 772 | 583 | 189 |
Hungin, 198734 | UK | Cross-sectional | Gastroscopy | 94 | 94 | – |
Ingeman, 201569 | Denmark | Cross-sectional | Ultrasound | 701 | 420 | 281 |
Johnston, 199935 | UK | Cohort | Gastroscopy | 739 | 384 | 355 |
Jones, 198636 | UK | Cross-sectional | Gastroscopy | 423 | 423 | – |
Kapoor, 200537 | UK | Cohort | Gastroscopy | 3637 | 3637 | – |
Kerrigan, 199038 | UK | Cross-sectional | Gastroscopy | 1545 | 1091 | 454 |
Kolk, 200239 | Estonia | Cross-sectional | Gastroscopy | 168 | 168 | – |
Lim, 199974 | UK | Cohort | X-ray | 603 | 603 | – |
Macintyre, 198840 | UK | Cross-sectional | Gastroscopy | 382 | 382 | – |
MacKenzie, 200357 | UK | Randomised clinical trial | Flexible sigmoidoscopy and colonoscopy | 1117 | 565 | 552 |
Mahajan, 199677 | US | Cohort | Gastroscopy and colonoscopy | 310 | 168 | 142 |
Mansi, 199341 | Italy | Cohort | Gastroscopy | 2253 | 1392 | 861 |
Morini, 200158 | Italy | Cross-sectional | Colonoscopy | 1123 | 415 | 708 |
O’Neill, 199842 | Ireland | Cohort | Gastroscopy | 891 | 891 | – |
Oren, 199743 | Israel | Cross-sectional | Gastroscopy | 813 | 366 | 447 |
Pullens, 201459 | Netherlands | Cross-sectional | Flexible sigmoidoscopy | 916 | 916 | – |
Rainis, 200760 | Israel | Cross-sectional | Colonoscopy | 10 866 | 10 866 | – |
Salih, 199979 | UK | Cohort | Mammography and ultrasound | 1698 | 1049 | 649 |
Salo, 200844 | Finland | Cross-sectional | Gastroscopy | 10 061 | 10 061 | – |
Shah, 201245 | India | Cross-sectional | Gastroscopy | 1000 | 1000 | – |
Shakil, 199561 | UK | Cohort | Flexible sigmoidoscopy | 1090 | 544 | 546 |
Simpson, 201066 | UK | Cross-sectional | CT | 4404 | 4404 | – |
Skillern, 199370 | UK | Cross-sectional | Ultrasound | 472 | 472 | – |
Smith, 197975 | UK | Cross-sectional | X-ray | 2409 | 2409 | – |
Suvakovic, 199746 | UK | Cohort | Gastroscopy | 6633 | Not stated | Not stated |
Tate, 198862 | UK | Cohort | Colonoscopy | 230 | 130 | 100 |
Taylor, 201273 | UK | Cohort | MRI | 200 | 100 | 100 |
Thomas, 201067 | UK | Cohort | CT | 215 | 215 | – |
Tiwari, 199747 | Saudi Arabia | Cohort | Gastroscopy | 2660 | 1873 | 787 |
van Kerkhoven, 200748 | Netherlands | Cross-sectional | Gastroscopy | 1298 | 1298 | – |
Vellacott, 198763 | UK | Cohort | Flexible sigmoidoscopy | 630 | 630 | – |
Verma, 200164 | UK | Cohort | Flexible sigmoidoscopy | 255 | 139 | 116 |
White, 200280,81 | UK | Cross-sectional | MRI and CT | 366 | 366 | – |
Wong, 200049 | Hong Kong | Cohort | Gastroscopy | 978 | 978 | – |
CT = computed tomography. DA = direct access. MRI = magnetic resonance imaging.