PMC

Number of omoka births expected to occur in ‘love match’ marriages. The observed sample of births is used to approximate the expected distribution of omoka children born into ‘love matches’. Resampling with replacement was performed 1000 times (range 3–26, mean = 17.34, s.d. = 3.3).

Increasing numbers of omoka births are associated with an increase in the total number of children women have who survive to adulthood. Sample is limited to post-menopausal women. Error bars s.e.m. (n = 33).