Table 1 Demographic data for survey sample population (n = 3082) and Nigerian population
Survey (n = 3082)Nigeria*
Gender (%)
    Male50.9149.64
    Female49.0950.36
Years of age (%)
    <514.5516.6
    5–1736.7553.6†
    18–2921.93
    30–4417.5914.8
    45–593.799
    ⩾605.46
Sector (%)
    Rural39.4965.41
    Urban60.5134.59
Education (%)
    No formal education30.1838.4†
    Pre-primary7.04
    Some primary19.3422.72
    Completed primary9.98.99
    Some secondary13.315.62
    Completed secondary14.287.64
    Post-secondary5.975.28
Marital status (%)
    Never married64.1131.88
    Currently married33.161.53
    Separated/divorced0.752.57
    Widowed1.851.81
  • *From the 2003 Nigerian Demographic and Health Survey.

  • †Data from 2003 Demographic and Health Survey: age only available in increments of 5 years; no formal education and pre-primary only available as collapsed single category, “no education.”