Table 1. Characteristics of the 31 included studies of incidence of Guillain-Barré Syndrome, by location and study period.
| Author/s (Year) | Country | Location | Study Period1 | Case ascertainment | Case definition | Ages |
|---|---|---|---|---|---|---|
| Central America and Mexico | ||||||
| Molinero et al (2003) | Honduras | Nationwide | 1989–1999 | Prospective hospital-based study of acute flaccid paralysis (AFP) cases | Asbury & Cornblath | <15 |
| de la Peña et al (2015) | Mexico | Jalisco (state) | 2005–2009 | Retrospective hospital-based review of medical discharge records | Asbury & Cornblath | ≥18 |
| del Carpio Orantes et al (2018) | Mexico | North Veracruz (delegation) | 2016–2017 | Retrospective hospital-based review of medical discharge records | Brighton Collaboration (1–3) | All |
| South America | ||||||
| Rojas et al (2009) | Argentina | Buenos Aires (city) | 1999–2007 | Retrospective hospital-based review of medical records | ICD-9 357.0 & NINCDS | All |
| Codebó et al (2016) | Argentina | Nationwide | 2007–2013 | Retrospective review of medical discharge records in national database | ICD-10 G61.0 | All |
| Dias-Tosta et al (2002) | Brazil | Nationwide | 1990–1996 | National AFP surveillance system and medical diagnosis | Asbury & Cornblath | <15 |
| Dourado et al (2012) | Brazil | Rio Grande do Norte (state) | 1994–2007 | Prospective hospital-based series | Asbury & Cornblath | All |
| Rocha et al (2004) | Brazil | Sao Paulo (city) | 1995–2002 | Retrospective review of medical discharge records | Asbury & Cornblath | All |
| Barcellos et al (2017) | Brazil | Northeast region | January 2008-May 2015 June-October 2015 | Admission records in national hospital information system | ICD-10 G61.0 | All |
| Souza (2018) | Brazil | Piauí (state) | 2014–2016 | Active hospital-based state surveillance system | Brighton Collaboration (1–3) | All |
| Paploski et al (2016) | Brazil | Salvador (city) | 2015 | Active surveillance and medical records review | Not specified | All |
| Nobrega (2018) | Brazil | Recife (metropolitan) | January-June, 2015 | Retrospective review of medical discharge records | ICD-10 G61.0 & Brighton Collaboration (1–3) | All |
| Styczynski et al (2017) | Brazil | Salvador (metropolitan) | April-July 2015 | Passive state surveillance system and review of medical discharge records | Brighton Collaboration (1–3) | ≥12 |
| Department of Health of Paiuí State (2016) | Brazil | Piauí (state) | November 2015-October 2016 | Active hospital-based state surveillance system | Not specified | All |
| Rivera-Lillo et al (2016) | Chile | Nationwide | 2001–2012 | Passive national surveillance system | ICD-10 G61.0 | All |
| Machado-Alba et al (2016) | Colombia | Nationwide | March 2014-September 2015 October 2015-March 2016 | Private insurance diagnostic database | ICD-10 G61.0 | All |
| Anaya et al (2017) | Colombia | Cúcuta (city) | June 2015-July 2016 | Passive national surveillance system | Brighton Collaboration (1,2) | All |
| Tolosa et al (2017) | Colombia | Nationwide | August 2015-May 2016 | Passive national surveillance system | ICD-10 G61.0 | ≤18 |
| Instituto Nacional de Salud de Colombia (2016) | Colombia | Nationwide | October 2015-March 2016 | Passive national surveillance system | ICD-10 G61.0 | All |
| Salinas et al (2017) | Colombia | Barranquilla (city) | October 2015-April 2016 | Passive national and local surveillance systems and medical records review | ICD-10 G61.0 & Brighton Collaboration (1–3) | All |
| Hart et al (1994) | Paraguay | Nationwide | 1990–1991 | National AFP surveillance and medical diagnosis | Asbury & Cornblath | <15 |
| Caribbean | ||||||
| Suryapranata et al (2016) | Aruba | Nationwide | 2003–2011 | Retrospective review of medical discharge records | ICD-9 357.0 & Asbury & Cornblath | All |
| van Koningsveld et al (2001) | Curaçao | Nationwide | 1987–1999 | Retrospective review of medical discharge records | ICD-9 357.0 & Asbury & Cornblath | All |
| Núnñez R et al (2017) | Dominican Republic | Nationwide | January 2016-October 2016 | Passive national surveillance system | Brighton collaboration (1,2) | All |
| Balavoine et al (2017) | Guadeloupe and Martinique | Nationwide | 2011–2013 2014 (chikungunya) | Retrospective review of medical discharge records | ICD-9 | All |
| Roze et al (2017) | Martinique | Nationwide | 2006–2016 2014 (chikungunya) 2016 (Zika) | Retrospective review of medical discharge records and prospective medical evaluation | ICD-10 & Brighton Collaboration (1,2) | All |
| Salinas et al (2017) | Puerto Rico | Nationwide | 2013 | Retrospective review of medical discharge records and insurance claims | ICD-9357.0 or ICD-10 G61.0 and Brighton Collaboration (1–3) | All |
| Dirlikov (2018) | Puerto Rico | Nationwide | 2017 | National surveillance system followed by medical record review | ICD-10 G61.0 & Brighton Collaboration (1–3) | All |
| Regional | ||||||
| Olivé et al (1997) | 7 countries2 | 1989–1991 | Passive AFP regional surveillance followed by neurologist diagnosis | Asbury & Cornblath | <15 | |
| Silveira et al (1997) | 4 countries3 | 1990–1994 | Passive AFP regional surveillance followed by neurologist diagnosis | PAHO Polio Eradication Field Guide definition | <15 | |
| Landaverde et al (2010) | 19 countries4 | 2000–2008 | Passive AFP regional surveillance followed by neurologist diagnosis | PAHO Polio Eradication Field Guide definition | <15 |
1 When two dates are given, the first is before and the second during the epidemic period
2 El Salvador, Guatemala, Honduras, Paraguay, Peru, Mexico, and Venezuela
3Argentina, Brazil, Chile and Colombia
4 Argentina, Brazil, Chile, Colombia, Cuba, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Peru, the Bahamas, Guyana, Jamaica, St Vincent and the Grenadines, Suriname, and Trinidad and Tobago