Table 2 The numbers and percentages of polymorphous low-grade adenocarcinomas in malignant minor salivary gland tumors by publication year as described in the studies included in this review
  Year | MMSGTs | PLGA | PLGA/MMSGTs | ||
|---|---|---|---|---|---|
| Â | n | % | n | % | % |
1992-1994 | 146 | 2.1 | 0 | 0.0 | 0.0 |
1995-1997 | 341 | 4.9 | 29 | 6.7 | 8.5 |
1998-2000 | 163 | 2.4 | 3 | 0.7 | 1.8 |
2001-2003 | 45 | 0.7 | 0 | 0.0 | 0.0 |
2004-2006 | 488 | 7.1 | 61 | 14.2 | 12.5 |
2007-2009 | 2,885 | 41.9 | 191 | 44.3 | 6.6 |
2010-2012 | 2,823 | 41.0 | 147 | 34.1 | 5.2 |
  Total | 6,891 | 100.0 | 431 | 100.0 | 6.3 |