Table 5. Comparison of Levene's test P_v ranks from different centiles of the P_m rank-ordered distribution for the index traits.

Trait	Known SNPs	Min Pm from 100th centile	Max Pm from 100th centile	Median Pv rank for 100th centile	Median Pv rank for 99th-1st centiles	Mann-Whitney P-value	Min Pm from 99th centile	Max Pm from 99th centile	Median Pv rank for 99th centile	Median Pv rank for 98th-1st centiles	Mann-Whitney P-value
BMI	Included	4.78×10−91	5.82×10−3	58.82	49.93	1.46×10−5	5.86×10−3	1.85×10−2	52.79	49.91	0.42
BMI	Excluded	3.59×10−6	8.56×10−3	55.78	49.95	4.30×10−4	8.73×10−3	2.18×10−2	52.60	49.93	0.36
HDL-C	Included	3.56×10−573	6.48×10−3	51.49	49.99	0.47	6.48×10−3	1.67×10−2	50.49	49.98	0.92
HDL-C	Excluded	6.68×10−11	9.94×10−3	51.45	49.99	0.77	9.95×10−3	2.09×10−2	51.06	49.98	0.47
LDL-C	Included	3.80×10−143	7.14×10−3	53.11	49.98	0.52	7.18×10−3	1.75×10−2	48.44	49.99	0.85
LDL-C	Excluded	2.03×10−11	9.88×10−3	53.42	49.97	0.38	9.90×10−3	2.09×10−2	48.37	49.99	1.00
TG	Included	2.23×10−113	8.18×10−3	53.73	49.98	0.32	8.19×10−3	1.92×10−2	52.42	49.95	0.63
TG	Excluded	1.00×10−10	1.06×10−2	51.27	49.99	0.64	1.06×10−2	2.21×10−2	53.23	49.95	0.41
TC	Included	1.41×10−107	5.85×10−3	52.03	49.98	0.32	5.87×10−3	1.49×10−2	51.21	49.97	0.62
TC	Excluded	3.11×10−11	9.14×10−3	49.43	50.01	0.66	9.15×10−3	1.91×10−2	50.12	50.01	0.93

BMI: body mass index; HDL-C: low-density lipoprotein cholesterol; LDL-C: low-density lipoprotein cholesterol; SNP: single nucleotide polymorphism; TC: total cholesterol; TG: triglycerides; P_v: Variance (Levene’s) test P-value; P_m: marginal (linear regression) test P-value