Table 3

Decomposition of trends in diarrhoea prevalence in the DRC 2001–2007

 Behavioural effectEffect of compositionContribution
BaseDifferentiationErrorTotal
B1B2B3BAC
Maternal education
 None−1.4220.000−0.243−1.665−0.76443.4%
 Primary−2.317−0.0790.792−1.6040.14926.0%
 Secondary and+−1.837−0.125−0.314−2.2770.56630.6%
 Overall99.7%3.6%−4.2%99.1%0.9%100.0
Water and sanitation
 None−0.7320.000−0.349−1.081−0.44727.3%
 Water alone−0.1080.0070.087−0.014−0.5269.7%
 Toilet alone−3.2010.438−0.580−3.3430.94542.8%
 Water and toilet−1.1490.236−0.169−1.082−0.05020.2%
 Overall92.7%−12.2%18.0%98.6%1.4%100.0
Household wealth index
 Poorest−1.4250.0640.588−0.7730.4994.9%
 Second−1.3400.120−0.605−1.8250.22628.6%
 Middle−1.3020.176−0.245−1.371−0.03825.2%
 Fourth−1.3370.2400.109−0.9880.32311.9%
 Richest−1.2700.2860.185−0.799−0.84529.4%
 Overall119.4%−15.8%−0.6%103.0%−3%100.0
  • Source: 2001DRC-MICS; 2007 DRC-DHS.

  • DHS, Demographic and Health Surveys; DRC, Democratic Republic of Congo; MICS, multiple indicators cluster survey.