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Table 4 Adjusted contribution of death clustering to infant mortality in Nigeria, 1980–2013

From: Clustering of infant deaths among Nigerian women: investigation of temporal patterns using dynamic random effects model

Row no. Probabilities Computation 1980–1989
(n = 30,330)
1990–1999
(n = 74,211)
2000–2009
(n = 106,478)
≥ 2010
(n = 21,071)
1 Predicted probability of infant death conditional on death of the preceding sibling excluding the first births (p1) Conditional on the death of the preceding sibling; this was obtained from the probabilities predicted using model parameters 0.1658 0.166 0.1406 0.0929
2 Predicted probability of infant death conditional on survival of the preceding sibling excluding the first births (p0) Conditional on the survival of the preceding sibling; this was obtained from the probabilities predicted using model parameters 0.0854 0.0849 0.0664 0.0319
3 Adjusted APE [excluding first births] (p1 − p0) Row 2 − row 1 0.0804 0.0811 0.0742 0.061
4 % infant death explained by clustering (Row 3/row 3 Table 3) × 100 48.1 47.2 55.4 79.9