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Health & Demographic Surveillance System

Cross River Health and Demographic Surveillance Site (CRHDSS)

Cross River HDSSActiveNigeriaEstablished 2012HDSS
44,000
Cohort size
2012
Year started
Mixed
Setting
All ages
Age group
All
Sex
HDSS
Cohort type

About this cohort

Established in 2012 in southern Cross River State, Nigeria. Open HDSS covering ~37,800 residents across an urban demographic surveillance area in Calabar Municipality and a rural area across four wards of Akpabuyo Local Government Area. Supports research and policy on demographic and health dynamics across paired urban–rural Nigerian settings.

Cohort-provided summary · derived from APCC directory fields

Research themes

Primary research themes for this cohort.

Demographic surveillance
Multi-disease

Study population

Who the cohort follows.

This cohort covers 44,000 participants in a mixed setting in Nigeria, spanning All ages (all). Detailed inclusion criteria and follow-up schedule — To be confirmed.

Timeline

Milestones in the cohort record.

2012
Cohort established
Start of data collection as recorded in the APCC directory.
Further milestones
To be confirmed Additional events pending custodian input.

Key characteristics

Core descriptive metadata.

Study design / type
HDSS
Cohort size
44,000Participants / residents
Population focus
All ages · All
Geographic coverage
NigeriaMixed
Year started
2012Ongoing
Coordinates
4.9589, 8.3227Lat, Long

Institutions & governance

Lead institution(s); partners and governance to be confirmed.

University of Calabar

Partner institutions & governance arrangements — To be confirmed

Nested studies & sub-cohorts

Studies built on this cohort platform.

Nested studies / sub-cohorts — To be confirmed.

FAIR readiness

Findable, Accessible, Interoperable, Reusable assessment.

F · TBCA · TBCI · TBCR · TBC
FAIR assessment pending — to be completed with the cohort custodian against the APCC metadata standard.

Investigators

Principal investigators and ORCID identifiers.

Information pending validation.

Publications & evidence

Outputs, policy briefs and research evidence.

◆ Powered by Africahied
Publications, policy briefs and research outputs to be linked from Africahied. To be confirmed.

Data access & governance

How the data can be accessed and governed.

🔒
Access procedure
Managed access via the cohort custodian
Request
🛡
Ethics & governance
To be confirmed

Collaboration opportunities

Partnerships and capacity strengthening.

Collaboration opportunities, capacity-strengthening and partnership details. To be confirmed.

Contact

How to reach the cohort team or request access.

🏛
Lead institution
University of Calabar
Contact
To be confirmed
Metadata source: APCC cohort directoryLast reviewed: 19 June 2026Some fields are placeholders pending custodian confirmation — verify independently.