What do the duplicated lines in burden test with covariates output mean ?

[marlenebrs]

I performed a CMC Wald burden test on my phenotype "EP" adjusted on 6 covariates : sex, AGE, PC1, PC2, PC3 and BMI.
My output shows for each gene 7 duplicated lines. What does each line mean? Does a line correspond to a fit on all covariates?

Here is a part of my output :

Gene	RANGE	N_INFORMATIVE	NumVar	NumPolyVar	NonRefSite	Beta	SE	Pvalue
FAM87B	1:817370-819834	69	41	41	41	-0.502387	0.568318	0.376702
FAM87B	1:817370-819834	69	41	41	41	1.61057	0.69236	0.0200079
FAM87B	1:817370-819834	69	41	41	41	-0.00472976	0.0244506	0.846614
FAM87B	1:817370-819834	69	41	41	41	118.706	187.67	0.527045
FAM87B	1:817370-819834	69	41	41	41	-189.578	446.778	0.671331
FAM87B	1:817370-819834	69	41	41	41	-96.8701	127.91	0.448851
FAM87B	1:817370-819834	69	41	41	41	-0.023334	0.0482548	0.628699
LINC00115	1:826205-827522	69	29	29	29	-0.44987	0.587963	0.444192
LINC00115	1:826205-827522	69	29	29	29	1.58764	0.690461	0.0214826
LINC00115	1:826205-827522	69	29	29	29	-0.00530215	0.0245051	0.8287
LINC00115	1:826205-827522	69	29	29	29	104.702	183.388	0.568046
LINC00115	1:826205-827522	69	29	29	29	-155.349	439.247	0.723585
LINC00115	1:826205-827522	69	29	29	29	-93.4759	126.892	0.461333
LINC00115	1:826205-827522	69	29	29	29	-0.0230046	0.0480832	0.632341

Here is my command line :

rvtest --inVcf input.vcf.gz --pheno pheno.ped --pheno-name EP --covar covars.ped --covar-name sex,AGE,PC1,PC2,PC3,BMI --out output --geneFile refFlat_hg38.txt.gz --burden cmcWald