Table 4.

Overall and sex-specific cross-validated classification accuracy and sex bias values derived from the logistic regression formulae in Table 3

	Cross-validated accuracy Overall	Cross-validated accuracy Males	Cross-validated accuracy Females	Sex bias
Total sample without age	87.5%	81.6%	94.6%	− 13.0%
Total sample with age	87.5%	80.3%	91.7%	− 11.4%
18–49 years	88.8%	79.4%	99.2%	− 19.8%
50–69 years	84.5%	81.3%	90.1%	− 8.8%
70 + years	89.3%	87.3%	91.0%	− 3.7%