Table 1.

SF-Relate achieves near-perfect accuracy for identifying close relatives in the UK Biobank and All of Us data sets

Data setRecall (%, counts)Precision (%, counts)% of comparisons w.r.t. all-pairwise
Relatedness degreeOverall
ZeroFirstSecondThird
UKB-200K100.0%100.0%99.8%94.9%97.0%98.5%0.13%
16/164702/47021709/17118475/892514,902/15,35414,902/15,129
UKB-100K100.0%100.0%100.0%95.1%97.2%98.7%0.26%
6/61243/1243404/4042169/22793822/39323822/3872
AoU-20K100.0%100.0%100.0%94.1%98.0%100.0%1.28%
14/14209/20993/93145/154461/470461/461

[i] Ground-truth relatedness degrees for recall and precision metrics are obtained using the KING method and assigning each sample to the lowest degree of relatedness observed. SF-Relate obtains accurate results while performing only a small fraction of comparisons compared with all-pairwise comparison between data sets. (w.r.t.) With respect to.