---
title: HKPredicateKeyPathCorrelation
framework: healthkit
role: symbol
role_heading: Global Variable
path: healthkit/hkpredicatekeypathcorrelation
---

# HKPredicateKeyPathCorrelation

The key path for accessing the object’s correlation inside a predicate format string.

## Declaration

```swift
let HKPredicateKeyPathCorrelation: String
```