Variable | Description |
---|---|
Dependent variable | |
 Under-five survival status | Alive = 0, neonatal mortality = 1, post-neonatal mortality = 2, child mortality = 3 |
Independent variables | |
 Child-level | |
  Child’s sex | Male = 0, female = 1 |
  Gestation type | Singleton = 0, multiple = 1 |
  Birth order | First birth = 0, 2–3 = 1, 4–6 = 2, ≥7 = 3 |
  Previous birth interval | < 2 years = 0, first birth = 1, ≥2 years = 2 |
  Maternal age at birth | < 20 years = 0, 20–34 years = 1, ≥35 years = 2 |
 Maternal level | |
  Maternal education | None/primary = 0, secondary/technical = 1, post-secondary = 2 |
  Maternal wealth index | Poor = 0, middle = 1, rich = 2 |
  Maternal media exposure | High = 0, medium = 1, low = 2, none = 3 |
  Death of previous children at the time of the survey | < 3 = 0, 3–4 = 1, ≥5 = 2 |
  Parity | < 3 = 0, 3–4 = 1, ≥5 = 2 |
  Access to antenatal care (ANC) | None = 0, skilled = 1, unskilled = 2 |
  Frequency of ANC visits | None = 0, 1–7 = 1, ≥8 = 2 |
  Skilled birth attendants during delivery | None = 0, skilled birth attendants = 1, unskilled/friend = 2 |
  Institutional delivery | Home = 0, health facility = 1 |
  Marital status | Currently married/in union = 0, formerly married/in union = 1, never married/in union = 2 |
  History of contraceptive use | Yes = 0, no = 1 |
  Ever drank alcohol | Yes = 0, no = 1 |
  Ever smoked cigarette | Yes = 0, no = 1 |
 Household-level | |
  Sex of household head | Male = 0, female = 1 |
  Household head education | None/primary = 0, secondary/technical = 1, post-secondary = 2 |
  Ethnic group | Hausa = 0, Igbo = 1, Yoruba = 2, others = 3 |
  Housing condition | Inadequate = 0, adequate = 1 |
  Polygamy | Yes = 0, no = 1 |
  Access to drinking water | Unimproved source = 0, improved source = 1 |
  Sanitation | Unimproved = 0, improved = 1 |
  Indoor pollution | Polluting fuel = 0, clean fuel = 1 |
  Household size | Discrete |
 Community-level | |
  Place of residence | Urban = 0, rural = 1 |
  Community infrastructural development (based on proportion of households with electricity in the community) | Low = 0, high = 1 |
  Region | North-Central (NC) = 0, North-East (NE) = 1, North-West (NW) = 2, South-East (SE) = 3, South-South (SS) = 4, South-West (SW) = 5 |
  Aggregated (community) level maternal education (based on proportion of households with women who had at least secondary education in the community) | Low = 0, medium = 1, high = 2 |