Table 4.
Comparison of aetiologies in other studies.
| All CTD | CE | SSc | Idiop | Iatro | TAO | Cancer | Athero ma | vasculitis | HHS | |
| Present study n = 323 | 19.2% | 18.3% | 16.0% | 11.7% | 9.3% | 9.3% | 6.2% | 3.4% | 3.1% | 1.6% |
| Carpentier and al 2005[7,17] n = 278 | 33.0% | 8.6% | 26.0% | 4.0% | 0.3% | 10.0% | 4.0% | 15.0% | 0.0% | 15.0% |
| Le Besnerais and al 2014 [9] n = 100 | 10.0% | 8.0% | 10.0% | 10.0% | NA | 22.0% | 15.0% | 4.0% | 0.0% | 13.0% |
| Cailleux and al 1999 [18] n = 96 | 26.0% | 6.2% | 26.0% | 10.5% | NA | 11.5% | 5.0% | NA | NA | NA |
| Vayssairat and al 1977 [19] n = 86 | 48.8% | NA | 39.0% | 19.0% | NA | 4.6% | 3.4% | 8.0% | 8.1% | 2.3% |
| Skeik and al 2015 [14] n = 64 | 0% | 46.9% | 0% | 1.6% | 6.3% | 4.7% | 4.7% | 17.2% | 1.6% | 7.8% |
| Cailleux and al 1994 [20] n = 45 | 27.0% | 9.0% | 0.0% | 4.0% | 0.0% | 13.0% | 2.0% | 16.0% | 0.0% | 11.0% |
| Keo and al 2011 [13] n = 36 | 42.0% | 6.7% | 14.0% | 22.0% | 2.8% | 0.0% | 0.0% | 11.0% | 0.0% | 33.0% |
| Abdallah and al 2009 [21] n = 25 | 36.0% | 4.0% | 12.0% | 4.0% | 0.0% | 20.0% | 8.0% | 20.0% | 12.0% | 0.0% |