Table 2 Summary of studies performing house dust mite allergen SPT in subjects with CSU
| Reference (author, year) | Region | Definition of CSU in weeks | Number of CSU subjects undergoing SPT | % of positive SPT for House Dust Mite in Study Group | Number of healthy controls undergoing SPT | % of positive SPT for House Dust Mite in Control Group | Number of antihistamine (AH) and/or systemic corticosteroid (SC)-free days | % of subjects with atopic diseases: allergic rhinitis (AR) and/or asthma (A) | Total IgE levels in CSU subjects |
|---|---|---|---|---|---|---|---|---|---|
| Sibbald, 1991 [53] | Canada | – | 75 | 27 | – | – | – | – | 23% > 200 IU/L |
| Liutu, 1998 [54] | Finland | > 8 | 91 | 9.8 | – | – | – | – | 49.3% > 111 IU/L |
| Caliskaner, 2004 [51] | Turkey | > 6 | 259 | 24.7 | 300 | 4.7 | 7 (AH) | Excluded AR/A | – |
| Ilonidis, 2005 [55] | Greece | – | 130 | > 2.3 | – | – | – | – | – |
| Mahesh, 2005 [64] | India | > 6 | 122 | 64 | 25 | 28 | – |
28.7 (AR) 23.8 (A) | – |
| Nath, 2007 [19] | India | > 6 | 50 | 12 (D. farinae only) | – | – | – | – | – |
| Kulthanan, 2008 [56] | Thailand | > 6 | 88 | 38.6 | – | – |
3 (AH) 28 (SC) |
20.5 (AR) 6.8 (A) | – |
| Kulthanan, 2008 [65] | Thailand | > 6 | 172 | 34.9 | – | – |
3 (AH) 28 (SC) |
20.4 (AR) 4.7 (A) | – |
| Daschner, 2010 [58] | Spain | – | 80 | 26.3 | 522 (with AR/A) | – | – | – | – |
| Refaat, 2010 [59] | Egypt | – | 174 | 13.8 | 200 | 1.5 | 5 (AH) | Excluded AR/A | – |
| Geçer, 2012 [66] | Turkey | – | 50 | 16 | – | – | – | – | – |
| De Vos, 2012 [12] | United States | > 6 | 19 | 44 | 19 | 0 | – | Excluded AR | – |
| Song, 2013 [67] | China | > 6 | 862 | 17.7 | – | – | – |
4.5 (AR) 1.7 (A) | – |
| Green, 2014 [60] | Canada | – | 44 | 15.9 | – | – | – | – | |
| Parasuramalu, 2014 [20] | India | > 6 | 300 | 20 | – | – | 15 (AH) |
11.3 (AR) 2.3 (A) | – |
| Mounika, 2017 [63] | India | > 6 | 56 | 14.2 | – | – | – | – | – |
| Oncham, 2018 [61] | Thailand | – | 140 | 67.9 | – | – | – | – | – |
| Bilgir, 2019 [62] | Turkey | > 6 | 302 | 43.7 | – | – | – | – | – |