Table 1 SNP sets for achieving comparable record-matching accuracy to the full data.

			One-to-one		SNP query		STR query		Needle-in-haystack
	Condition	SNP panel size	Median	Range	Median	Range	Median	Range	Median	Range
A. Baseline – randomly selected SNPs
	Random selection	9000	1	[1–1]	1	[0.997–1]	1	[0.998–1]	0.995	[0.962–1]
B. Locus characteristics
	Pop-MAF ≥ 1%	1800	1	[1–1]	1	[0.997–1]	1	[0.998–1]	0.992	[0.784–1]
	Pop-MAF ≥ 5%	1800	1	[1–1]	1	[0.997–1]	1	[0.998–1]	0.992	[0.896–1]
C. Combinations of locus characteristics
	MAF ≥ 5%, Distance ≤ 0.125 Mb	900	1	[1–1]	1	[0.998–1]	1	[0.997–1]	0.990	[0.879–1]
	MAF ≥ 10%, Distance ≤ 0.125 Mb	900	1	[1–1]	1	[0.998–1]	1	[0.998–1]	0.992	[0.866–1]
	Pop-MAF > 0%, Distance ≤ 0.0625 Mb	900	1	[1–1]	1	[0.998–1]	1	[0.998–1]	0.990	[0.939–1]
	Pop-MAF > 0%, Distance ≤ 0.125 Mb	900	1	[1–1]	1	[0.998–1]	1	[0.997–1]	0.990	[0.799–1]
	Pop-MAF ≥ 1%, Distance ≤ 0.0625 Mb	900	1	[1–1]	1	[0.997–1]	1	[0.998–1]	0.992	[0.936–1]
	Pop-MAF ≥ 5%, Distance ≤ 0.125 Mb	900	1	[1–1]	1	[0.998–1]	1	[0.998–1]	0.994	[0.949–1]

(A) Randomly selected SNPs. (B) SNPs with a specific characteristic (MAF, pop-MAF, distance to CODIS STR, and D’_avg conditions). (C) SNPs with two or more characteristics (combinations among MAF or pop-MAF, distance to CODIS STR, and D’_avg conditions). Full numerical results for the SNP selection strategies appear in Tables S5 and S6A.

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