Table 2. Excluded Studies.
| Study (Author, year) | Citation | Reason(s) for Exclusion |
|---|---|---|
| Adams 1977 | Lancet. 1977 Sep 3;2(8036):504–5. | HLA typing was insufficient a |
| Stewart 1978 | Ann Neurol. 1978 Sep;4(3):285–9. | HLA typing was insufficient |
| Latovitzki 1979 | Neurology. 1979 May;29(5):743–5. | HLA typing was insufficient and study design was not case-control |
| Gorodezky 1983 | J Neuroimmunol. 1983 Feb;4(1):1–7. | HLA typing was insufficient and included only HLA-DR alleles |
| Kaslow 1984 | Neurology. 1984 Feb;34(2):240–2. | HLA typing was insufficient and included only HLA-A,-B, and-C alleles |
| Hafez 1985 | J Neurogenet. 1985 Sep;2(4):285–90. | HLA typing was insufficient |
| Winer 1988 | J Neuroimmunol. 1988 Apr;18(1):13–6. | HLA typing was insufficient |
| Hillert 1991 | J Neuroimmunol. 1991 Jan;31(1):67–72. | HLA typing was insufficient |
| Yuki 1992 | Muscle Nerve. 1992 Aug;15(8):968–9. | HLA typing was insufficient and study design was not case-control |
| Davidson 1992 | J Neurol Neurosurg Psychiatry. 1992 Jun;55(6):508–9. | Familial study with insufficient genetic data |
| Piradov 1995 | Neurology. 1995 Jul;45(7):1419–20. | HLA typing was insufficient and included only HLA-DR1 and-DR6 alleles |
| Chiba 1995 | J Neuroimmunol. 1995 Aug;61(1):85–8. | HLA typing was insufficient |
| Monos 1997 | J Infect Dis. 1997 Dec;176 Suppl 2:S180-2. | Only HLA-DR alleles were characterized |
| Grigg 1998 | J Clin Neurosci. 1998 Apr;5(2):169–71. | Insufficient genetic data b |
| Wilmshurst 1999 | Eur J Neurol. 1999 Jul;6(4):499–503. | Familial study with insufficient genetic data |
| Ang 2000 | J Neuroimmunol. 2000 Nov 1;111(1–2):229–33. | Familial study with insufficient genetic data |
| de Graaf 2004 | J Neuroimmunol. 2004 Oct;155(1–2):73–84. | Animal Study |
| Senanayake 2010 | Ceylon Med J. 2010 Dec;55(4):135–6. | Familial study with insufficient genetic data |
| Barzegar 2012 | Ann Indian Acad Neurol. 2012 Oct;15(4):299–302. doi: 10.4103/0972-2327.104341. | Familial study with insufficient genetic data |
| Blum 2013 | J Neuroimmunol. 2014 Feb 15;267(1–2):92–6. doi: 10.1016/j.jneuroim.2013.12.007. Epub 2013 Dec 12. | Only HLA-A,-B, and-C alleles were typed |
| Hasan 2014 | Neurosciences (Riyadh). 2014 Oct;19(4):301–5. | Only HLA-DR alleles were characterized |
a Insufficient HLA typing was considered for any analysis that was not able to identify the HLA allele to at least two digits.
b Studies with insufficient genetic data included only 2–3 GBS cases, were usually family groupings, and did not have a case-control design.