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. 2012 Mar 5;7(3):e32327. doi: 10.1371/journal.pone.0032327

Table 3. Variance components of serum haptoglobin concentrations (656 families/2680 individuals, rs2000999 & rs4788597 as allelic frequency).

	Model 1	Model 2	Model 3
Adjustment for	None	Age & BMI	Age, BMI & rs2000999 allelic frequency
Polygenic variance: σ² _G	0.0478±0.0120^***, 24.9%	0.0460±0.0109^***, 26.0%	0.0226±0.0101^*, 14.2%
Household variance: σ² _H	0.0250±0.0065^***, 13.0%	0.0206±0.0059^***, 11.6%	0.0233±0.0053^***, 14.7%
Residual variance: σ² _E	0.1194±0.0078^***, 62.1%	0.1103±0.0072^***, 62.4%	0.1130±0.0069^***, 71.1%
Log_e L² (Logarithm of likelihood function)	−968.90	−1074.58	−1200.04
Alternate model	-	Model 1	Model 2
χ² (df)	-	211.36 (8)	250.92 (4)
P	-	^***	^***

^*

P≤0.05,

^**

P≤0.01,

*** P≤0.001.

BMI: body mass index.