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Table 4 Cox proportional hazards model for child mortality by age group

From: Being the younger child in a large African Family: a study of birth order as a risk factor for poor health using the demographic and health surveys for 18 countries

 

Ages 1–4

Ages 5–14

Hazard ratio

C.I.

Hazard ratio

C.I.

Birth order (Continuous)

1.13c

[1.11, 1.15]

1.10c

[1.07, 1.13]

Country:

 Burkina Faso

1.78c

[1.60, 1.98]

2.58c

[2.05, 3.23]

 Cameroon

1.34c

[1.18, 1.51]

2.52c

[1.98, 3.19]

 Cote d’Ivoire

1.18a

[1.02, 1.36]

2.32c

[1.80, 2.99]

 Egypt (reference)

1.00

-

1.00

-

 Ghana

1.13

[0.99, 1.29]

1.95c

[1.52, 2.51]

 Kenya

0.59c

[0.51, 0.68]

1.11

[0.85, 1.45]

 Madagascar

1.22b

[1.07, 1.38]

2.46c

[1.94, 3.13]

 Malawi

1.67c

[1.50, 1.86]

2.12c

[1.68, 2.68]

 Mali

1.68c

[1.49, 1.89]

2.55c

[2.01, 3.24]

 Namibia

0.54c

[0.46, 0.63]

1.25

[0.95, 1.66]

 Niger

2.50c

[2.23, 2.80]

3.71c

[2.95, 4.68]

 Nigeria

2.08c

[1.84, 2.34]

2.70c

[2.15, 3.41]

 Rwanda

1.54c

[1.37, 1.73]

4.85c

[3.83, 6.12]

 Senegal

2.06c

[1.84, 2.32]

3.19c

[2.49, 4.08]

 Tanzania

1.04

[0.92, 1.18]

1.44b

[1.13, 1.85]

 Uganda

1.12

[0.99, 1.26]

2.00c

[1.58, 2.55]

 Zambia

1.43c

[1.28, 1.61]

1.89c

[1.50, 2.39]

 Zimbabwe

0.62c

[0.53, 0.72]

1.23

[0.94, 1.61]

Child Characteristics

 Child Date of Birth (years since 1900)

0.98c

[0.98, 0.98]

0.98c

[0.98, 0.98]

 Child Gender (1 = male)

1.03

[0.99, 1.07]

1.08a

[1.00, 1.17]

Maternal Characteristics:

 Age at Child’s Birth (continuous)

0.95c

[0.94, 0.95]

0.97c

[0.96, 0.99]

 No Formal Education

1.48c

[1.41, 1.56]

1.29c

[1.16, 1.43]

 Not Married or Cohabiting

0.89b

[0.83, 0.96]

1.02

[0.91, 1.15]

 Ideal Number of Children (continuous)

0.99

[0.98, 1.00]

0.99

[0.98, 1.01]

Household Characteristics:

 Number of Household Members (continuous)

0.95c

[0.95, 0.96]

0.96b

[0.94, 0.99]

 Rural Resident

1.19c

[1.12, 1.27]

1.23c

[1.10, 1.37]

 Natural (Unmodified) Flooring

1.39c

[1.30, 1.48]

1.17b

[1.05, 1.31]

 No Flushable Toilet

1.59c

[1.44, 1.75]

1.55c

[1.28, 1.86]

  1. Includes all children (regardless of year born) of mothers alive in survey year; restricted to children whose mothers were 18–34 at child’s birth and were 30–44 years old at the time of interview, and to children in families with 4+ children ever born to surveyed mothers. Maternal characteristics are at time of survey except for age at child’s birth
  2. aSignificant at .05 level
  3. bSignificant at .01 level
  4. cSignificant at .001 level