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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Evol Hum Behav. 2011 Mar 1;32(2):79–89. doi: 10.1016/j.evolhumbehav.2010.08.002

Table 1.

Impacts of father and mother death on child mortality

Child Mortality <1 Child Mortality <5 Child Mortality <10 Child Mortality <15
Mother Death OR=168.595 b OR=7.853 OR=6.851 OR=4.626
p<0.001 p<0.001 p<0.001 p<0.001
np=4528 (358)a np=4329 (560) np=4072 (643) np=3889 (684)
na=21 (9) na=92 (15) na=181 (25) na=240 (29)

Father Death OR=9.721 OR=2.960 OR= 1.970 OR= 1.494
p=0.153 p=0.041 p=0.163 p=0.350
np=4532 (358) np=4329 (560) np=4072 (643) np=3889 (684)
na=19 (4) na=82 (8) na=181 (12) na=257 (15)
a

Reported n is number of individuals, not risk years; np is the number of individuals with parent present, and na is the number of children with a parent absent. Numbers within parentheses indicate the number of individuals within that group who died.

b

This remarkably high odds ratio is an artifact of controlling for family with so few mother-absent children, as removing the random family term resulted in an odds ratio of 6.011 (p<0.001).

Reprinted from (Winking, et al. n.d.). Controls include community region, birth order, sex and a random family term.