Unsatisfactory cervical cytology smear rates in populations using the ThinPrep platform
| Lead author | Year | Total number of cervical cytology smears | Number of unsatisfactory smears | Percentage of unsatisfactory smears | Location of study |
| Davey et al21 | 2007 | 52 665 | 795 | 1.5 | Australia |
| Roberts et al22 | 1997 | 35 560 | 235 | 0.7 | Australia |
| Shield et al23 | 1999 | 300 | 19 | 6.3 | Australia |
| Halford et al24 | 2009 | 87 284 | 758 | 0.9 | Australia |
| Duggan et al25 | 2006 | 2288 | 10 | 0.4 | Canada |
| Belison et al26 | 2002 | 1450 | 158 | 10.9 | China |
| Zhao et al9 | 2011 | 1033 | 15 | 1.5 | China |
| Yeoh et al27 | 1999 | 16 541 | 93 | 0.6 | Hong Kong |
| Cheung et al28 | 2003 | 190 667 | 608 | 0.3 | Hong Kong |
| Grace et al29 | 2002 | 1000 | 13 | 1.3 | Ireland |
| Treacy et al1 | 2009 | 41 312 | 1342 | 3.2 | Ireland |
| Ronco et al30 | 2007 | 22 708 | 583 | 2.6 | Italy |
| Rahimi et al31 | 2008 | 467 | 9 | 1.9 | Italy |
| Luthra et al32 | 2001 | 1024 | 36 | 3.5 | Kuwait |
| Siebers et al33 | 2008 | 46 064 | 153 | 0.3 | the Netherlands |
| Williams34 | 2006 | 78 064 | 1493 | 1.9 | Scotland |
| Taylor et al35 | 2006 | 3184 | 70 | 2.2 | South Africa |
| Tuncer et al36 | 2005 | 4322 | 72 | 1.7 | Turkey |
| Kitchener et al13 | 2011 | 23 436 | 456 | 1.9 | UK |
| Narine and Young14 | Unpublished | 58 973 | 1250 | 2.1 | UK |
| Alsharif et al15 | 2009 | 5419 | 124 | 2.3 | USA |
| Nance17 | 2007 | 88 575 | 567 | 0.6 | USA |
| Bentz37 | 2002 | 23 790 | 209 | 0.9 | USA |
| Bentz37 | 2002 | 15 154 | 197 | 1.3 | USA |
| Bolick and Hellman38 | 1998 | 10 694 | 31 | 0.3 | USA |
| Wachtel et al39 | 2009 | 2890 | 77 | 2.7 | USA |
| Harkness et al40 | 2003 | 3000 | 80 | 2.7 | USA |
| Duby and DiFurio41 | 2009 | 55 438 | 1027 | 1.8 | USA |
| Duby and DiFurio41 | 2009 | 53 209 | 783 | 1.5 | USA |
| Zhao and Austin42 | 2009 | 222 242 | 3230 | 1.4 | USA |
| Total | 1 148 755 | 15 593 | 1.3 |