Ethnic sexual mixing patterns of men and women, Paramaribo, Suriname, 2008 to 2010.

Percentages in row totals can exceed 100% as participants may have partners from various ethnicities.
O = observed; E = expected. χ2 based on goodness of fit.
The expected number of people with sexual partners from their own ethnicity was calculated by multiplying the total number of reported partners of an ethnicity (e.g. n = 353 for Hindustani) by the proportion of individuals from each ethnicity in the study (e.g. 19% for Hindustani). O/E is the ratio of the observed number of partners (e.g. n = 225 for Hindustani) divided by the expected number of partners from that ethnic group (e.g. n = 68 for Hindustani).
aOther; Caucasian, Chinese, Indigenous (n = 57), unknown (n = 6).