Kinship and Leprosy in the Contacts of Leprosy Patients: Cohort at the Souza Araújo Outpatient Clinic, Rio de Janeiro, RJ, 1987–2010
A broad variety of factors have been associated with leprosy among contacts, including socioeconomic, epidemiological, and genetic characteristics. Data from 7,174 contacts of leprosy patients from a leprosy outpatient clinic in Rio de Janeiro, Brazil, 1987–2010, were analyzed to investigate the eff...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Tropical Medicine |
| Online Access: | http://dx.doi.org/10.1155/2013/596316 |
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| author | Daiane Santos dos Santos Nadia Cristina Duppre Anna Maria Sales José Augusto da Costa Nery Euzenir Nunes Sarno Mariana Andréa Hacker |
| author_facet | Daiane Santos dos Santos Nadia Cristina Duppre Anna Maria Sales José Augusto da Costa Nery Euzenir Nunes Sarno Mariana Andréa Hacker |
| author_sort | Daiane Santos dos Santos |
| collection | DOAJ |
| description | A broad variety of factors have been associated with leprosy among contacts, including socioeconomic, epidemiological, and genetic characteristics. Data from 7,174 contacts of leprosy patients from a leprosy outpatient clinic in Rio de Janeiro, Brazil, 1987–2010, were analyzed to investigate the effects of kinship, individual, and contextual factors on leprosy. Multivariate analyses were performed using a robust estimation method. In the prevalence analysis, close kinship (sibling OR = 2.75, offspring OR = 2.00, and other relatives OR = 1.70), socioeconomic factors, and the duration of exposure to the bacillus were associated to leprosy. In the incidence analysis, significant risks were found for all categories of kinship (parents RR = 10.93, spouse, boyfriend/girlfriend, and bride/groom RR = 7.53, sibling RR = 7.03, offspring RR = 5.34, and other relatives RR = 3.71). Once the treatment of the index case was initiated, other factors lost their significance, and the index case bacteriological index and BCG (Bacillus Calmette-Guérin vaccine) protection had a greater impact. Our findings suggested that both genetic susceptibility and physical exposure play an important role in the epidemiology of leprosy, but it was not possible establishing the role of genetic factor. Analyses of other factors related to the genotype of individuals, such as genetic polymorphisms, are needed. |
| format | Article |
| id | doaj-art-1c484fbc5d9a4fa1b0a643ce26e4de41 |
| institution | Kabale University |
| issn | 1687-9686 1687-9694 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
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| series | Journal of Tropical Medicine |
| spelling | doaj-art-1c484fbc5d9a4fa1b0a643ce26e4de412025-02-03T01:23:32ZengWileyJournal of Tropical Medicine1687-96861687-96942013-01-01201310.1155/2013/596316596316Kinship and Leprosy in the Contacts of Leprosy Patients: Cohort at the Souza Araújo Outpatient Clinic, Rio de Janeiro, RJ, 1987–2010Daiane Santos dos Santos0Nadia Cristina Duppre1Anna Maria Sales2José Augusto da Costa Nery3Euzenir Nunes Sarno4Mariana Andréa Hacker5Leprosy Laboratory, Oswaldo Cruz Foundation, Oswaldo Cruz Institute, Avenida Brasil, 4365, Manguinhos, 21040-360 Rio de Janeiro, RJ, BrazilLeprosy Laboratory, Oswaldo Cruz Foundation, Oswaldo Cruz Institute, Avenida Brasil, 4365, Manguinhos, 21040-360 Rio de Janeiro, RJ, BrazilLeprosy Laboratory, Oswaldo Cruz Foundation, Oswaldo Cruz Institute, Avenida Brasil, 4365, Manguinhos, 21040-360 Rio de Janeiro, RJ, BrazilLeprosy Laboratory, Oswaldo Cruz Foundation, Oswaldo Cruz Institute, Avenida Brasil, 4365, Manguinhos, 21040-360 Rio de Janeiro, RJ, BrazilLeprosy Laboratory, Oswaldo Cruz Foundation, Oswaldo Cruz Institute, Avenida Brasil, 4365, Manguinhos, 21040-360 Rio de Janeiro, RJ, BrazilLeprosy Laboratory, Oswaldo Cruz Foundation, Oswaldo Cruz Institute, Avenida Brasil, 4365, Manguinhos, 21040-360 Rio de Janeiro, RJ, BrazilA broad variety of factors have been associated with leprosy among contacts, including socioeconomic, epidemiological, and genetic characteristics. Data from 7,174 contacts of leprosy patients from a leprosy outpatient clinic in Rio de Janeiro, Brazil, 1987–2010, were analyzed to investigate the effects of kinship, individual, and contextual factors on leprosy. Multivariate analyses were performed using a robust estimation method. In the prevalence analysis, close kinship (sibling OR = 2.75, offspring OR = 2.00, and other relatives OR = 1.70), socioeconomic factors, and the duration of exposure to the bacillus were associated to leprosy. In the incidence analysis, significant risks were found for all categories of kinship (parents RR = 10.93, spouse, boyfriend/girlfriend, and bride/groom RR = 7.53, sibling RR = 7.03, offspring RR = 5.34, and other relatives RR = 3.71). Once the treatment of the index case was initiated, other factors lost their significance, and the index case bacteriological index and BCG (Bacillus Calmette-Guérin vaccine) protection had a greater impact. Our findings suggested that both genetic susceptibility and physical exposure play an important role in the epidemiology of leprosy, but it was not possible establishing the role of genetic factor. Analyses of other factors related to the genotype of individuals, such as genetic polymorphisms, are needed.http://dx.doi.org/10.1155/2013/596316 |
| spellingShingle | Daiane Santos dos Santos Nadia Cristina Duppre Anna Maria Sales José Augusto da Costa Nery Euzenir Nunes Sarno Mariana Andréa Hacker Kinship and Leprosy in the Contacts of Leprosy Patients: Cohort at the Souza Araújo Outpatient Clinic, Rio de Janeiro, RJ, 1987–2010 Journal of Tropical Medicine |
| title | Kinship and Leprosy in the Contacts of Leprosy Patients: Cohort at the Souza Araújo Outpatient Clinic, Rio de Janeiro, RJ, 1987–2010 |
| title_full | Kinship and Leprosy in the Contacts of Leprosy Patients: Cohort at the Souza Araújo Outpatient Clinic, Rio de Janeiro, RJ, 1987–2010 |
| title_fullStr | Kinship and Leprosy in the Contacts of Leprosy Patients: Cohort at the Souza Araújo Outpatient Clinic, Rio de Janeiro, RJ, 1987–2010 |
| title_full_unstemmed | Kinship and Leprosy in the Contacts of Leprosy Patients: Cohort at the Souza Araújo Outpatient Clinic, Rio de Janeiro, RJ, 1987–2010 |
| title_short | Kinship and Leprosy in the Contacts of Leprosy Patients: Cohort at the Souza Araújo Outpatient Clinic, Rio de Janeiro, RJ, 1987–2010 |
| title_sort | kinship and leprosy in the contacts of leprosy patients cohort at the souza araujo outpatient clinic rio de janeiro rj 1987 2010 |
| url | http://dx.doi.org/10.1155/2013/596316 |
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