10.17037/DATA.34
The dataset contains results of a cross-sectional survey of meningococcal carriage and immunity performed in several countries of the African meningitis belt in 2010. A standardised enzyme-linked immunosorbent assay (ELISA) for measuring meningococcal serogroup A IgG antibodies was used to measure antibody concentrations in 3930 individuals. Anonymised information on the age, sex, residence, carriage status and other risk factors is included.
The survey was performed prior to the introduction of data sharing requirements and was not addressed in the original participant consent form. The study team applied to LSHTM Ethics for permission to upload an anonymised dataset to a repository and make it available via request access. LSHTM Ethics Committee approved the request in January 2016, indicating it was in keeping with the intent of the original consent process.
| Variable Name | Variable Label | Answer Label | Answer Code | Variable Type |
| pid | Participant ID (siteid-personid-surveycode-visit number) | Open ended | String | |
| hhid | Household ID | Open ended | String | |
| agem | Age in months (for infants under one year only) | Open ended | Numeric | |
| agey | Age in years | Open ended | Numeric | |
| agegroup | Age group | Numeric | ||
| 0 to 4 years (0to4y) | 1 | |||
| 5 to 14 years (5to14y) | 2 | |||
| 15 to 29 years (15to29y) | 3 | |||
| 30+ years (30+y) | 4 | |||
| sex | Participant sex | Numeric | ||
| Female | 1 | |||
| Male | 2 | |||
| country | Country | String | ||
| Ethiopia | Ethiopia | |||
| Ghana | Ghana | |||
| Mali | Mali | |||
| Niger | Niger | |||
| Nigeria | Nigeria | |||
| Senegal | Senegal | |||
| rural | Study site | Numeric | ||
| Urban | 0 | |||
| Rural | 1 | |||
| meningo | Meningococcal carrier | Numeric | ||
| Carrier | 0 | |||
| Not a carrier | 1 | |||
| strain | Strain | Open ended | String | |
| commensal | Carrier of a non-meningococcal Neisseria species | Numeric | ||
| Carrier | 0 | |||
| Not a carrier | 1 | |||
| ppr | People per room - number of residents divided by number of rooms | Open ended | Numeric | |
| crowded | Crowded household (>=2 people per room is crowded) | Numeric | ||
| Not crowded | 0 | |||
| Crowded | 1 | |||
| vaccine | Reports receiving a meningitis vaccine in the past 6 months (vaccine status) | Open ended | Numeric | |
| No | 0 | |||
| Yes | 1 | |||
| IgG_A | Serogroup A specific IgG result (ug/ml) | Open ended | Numeric |