---
title: "DNA methylation in saliva, buffy coat and PBMC samples in CATSLife"
id: "8871"
type: "sample_set"
slug: "snd10140"
published_at: "2026-06-11T16:51:37+00:00"
modified_at: "2026-06-11T16:51:37+00:00"
url: "https://dss.niagads.org/sample-sets/snd10140/"
markdown_url: "https://dss.niagads.org/sample-sets/snd10140.md"
excerpt: "As part of the CATSLife project, saliva, buffy coat and peripheral blood mononuclear cells (PBMCs) were isolated from 89 CATSLife1 participants. Methylation array data were collected using Illumina EPIC methylation array."
---

## Description

As part of the CATSLife project, saliva, buffy coat and peripheral blood mononuclear cells (PBMCs) were isolated from 89 CATSLife1 participants. Methylation array data were collected using Illumina EPIC methylation array.

## Cohorts

- [Colorado Adoption/Twin Study of Lifespan behavioral development & cognitive aging (CATSLife)](https://dss.niagads.org/cohorts/colorado-adoption-twin-study-of-lifespan-behavioral-development-cognitive-aging-catslife/)

## Sex

### Total number of samples: 258

Female13451.9 %

Male12448.1 %

## Race

### Total number of samples: 258

| White | 225 |
| --- | --- |
| NA | 33 |

## Ethnicity

### Total number of samples: 258

Not Hispanic or Latino

226

87.6%

Hispanic or Latino

32

12.4%

## Diagnosis

### Total number of samples: 258

| NA |  |  |
| --- | --- | --- |
| Unknown | 258 | 100.0% |

## APOE

### Total number of samples: 258

- 222 (0.8%)
- 2330 (11.6%)
- 243 (1.2%)
- 33156 (60.5%)
- 3461 (23.6%)
- 443 (1.2%)
- NA3 (1.2%)