Table 3 Association results and heterogeneity estimates for metabolites in relation to A-T-N biomarkers stratified by APOE ε4 status.

From: Sex and APOE ε4 genotype modify the Alzheimer’s disease serum metabolome

Biomarker/metabolite

Pooled effect

Pooled p value

Effect type

ε4+effect

ε4+p value

ε4− effect

ε4− p value

ε4 diff. statistic

ε4 diff. p value

ε4 diff. I²

Interaction p value

Pathological CSF Aβ1–42

PC ae C44:6

0.283

2.58E-04

Specific to ε4+

0.630

2.50E-05

0.158

7.96E-02

−2.705

6.83E-03

63.030

2.80E-03

PC ae C44:4

0.265

4.57E-04

Specific to ε4+

0.565

1.30E-04

0.139

1.13E-01

−2.478

1.32E-02

59.645

5.80E-03

PC ae C44:5

0.260

5.23E-04

Specific to ε4+

0.609

2.64E-05

0.129

1.37E-01

−2.837

4.56E-03

64.749

3.07E-03

PC ae C42:4

0.242

1.98E-03

Specific to ε4+

0.564

1.32E-04

0.114

2.15E-01

−2.589

9.61E-03

61.382

5.64E-03

Proline

−0.075

3.52E-01

Heterogeneous

0.176

2.15E-01

−0.202

4.40E-02

−2.173

2.98E-02

53.982

1.58E-01

Glycine

0.060

4.60E-01

Heterogeneous

0.363

1.83E-02

−0.102

3.05E-01

−2.538

1.11E-02

60.604

7.89E-04

FDG-PET

PC aa C32:1

−0.127

2.32E-05

Homogeneous

−0.087

5.35E-02

−0.162

1.34E-04

−1.210

2.26E-01

17.332

3.58E-01

PC ae C44:4

−0.111

2.27E-04

Homogeneous

−0.115

1.39E-02

−0.114

6.34E-03

0.023

9.82E-01

0.000

8.63E-01

PC ae C44:5

−0.105

4.07E-04

Homogeneous

−0.122

8.34E-03

−0.102

1.30E-02

0.326

7.44E-01

0.000

6.39E-01

PC aa C32:0

−0.107

6.85E-04

Homogeneous

−0.135

4.39E-03

−0.082

6.58E-02

0.818

4.14E-01

0.000

3.69E-01

PC ae C42:4

−0.103

8.56E-04

Homogeneous

−0.131

5.79E-03

−0.086

4.51E-02

0.701

4.83E-01

0.000

3.98E-01

C10

−0.057

5.14E-02

Specific to ε4−

0.037

4.17E-01

−0.135

7.17E-04

−2.840

4.51E-03

64.793

4.96E-03

C8

−0.051

9.96E-02

Heterogeneous

0.038

4.04E-01

−0.138

1.58E-03

−2.794

5.20E-03

64.215

6.37E-03

Valine

0.036

2.49E-01

Heterogeneous

−0.040

4.08E-01

0.106

1.68E-02

2.234

2.55E-02

55.233

9.50E-02

Glycine

−0.032

3.00E-01

Heterogeneous

−0.140

3.05E-03

0.059

1.80E-01

3.092

1.99E-03

67.653

3.29E-03

Proline

−0.023

4.51E-01

Heterogeneous

−0.100

3.39E-02

0.048

2.64E-01

2.324

2.01E-02

56.977

6.35E-02

  1. Associations of metabolites identified in the sex-centric analysis with A-T-N biomarkers that are either Bonferroni-significant in the full sample, in APOE ε4+ or APOE ε4− participants, or show nominal significance both in one APOE ε4 status group and for effect heterogeneity or the APOE ε4 status×metabolite interaction. Given are regression results for the full sample and both APOE ε4 status groups, as well as heterogeneity estimates and the p value for APOE ε4 status×metabolite interactions. Full association results for all strata are provided in Supplementary Data 2. ε4 diff. results from the heterogeneity analysis.