> ## Documentation Index
> Fetch the complete documentation index at: https://docs.carelane.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Data Quality

> Ensure data integrity through queries, verification, and review

Data quality management in Carelane involves reviewing submitted data, raising queries for clarification or correction, and verifying data accuracy.

## Data Quality Overview

<CardGroup cols={2}>
  <Card title="Query Lifecycle" icon="circle-question" href="/data-quality/query-lifecycle">
    Understand the query workflow from creation to resolution.
  </Card>

  <Card title="Creating Queries" icon="plus" href="/data-quality/creating-queries">
    How to raise data queries.
  </Card>

  <Card title="Responding to Queries" icon="reply" href="/data-quality/responding-queries">
    How site teams respond to queries.
  </Card>
</CardGroup>

## Data Quality Workflow

The data quality process ensures accuracy:

```
Data Submitted → Review → Query (if needed) → Response → Verification → Sign-off
```

<Steps>
  <Step title="Site Submits Data">
    Site completes and submits questionnaire responses.
  </Step>

  <Step title="Study Team Reviews">
    Data reviewers examine submitted data.
  </Step>

  <Step title="Queries Raised">
    Discrepancies or questions generate queries.
  </Step>

  <Step title="Site Responds">
    Site team addresses queries.
  </Step>

  <Step title="Verification">
    Study team verifies resolved data.
  </Step>

  <Step title="Sign-off">
    Authorized signer approves final record.
  </Step>
</Steps>

## Query Types

### Manual Queries

Raised by the study team:

* Data clarification requests
* Correction requests
* Missing data inquiries
* Protocol deviation documentation

### Field Change Queries

Auto-generated when field values change:

| Type                       | Trigger                          |
| -------------------------- | -------------------------------- |
| **Confirmed Field Update** | Change with confirmation         |
| **Override Field Update**  | Change overriding previous value |

## Record Status with Queries

Queries affect record status:

| Status                    | Description                     |
| ------------------------- | ------------------------------- |
| **Completed (Site)**      | No open queries                 |
| **Queries in Progress**   | Has open queries                |
| **Verified (Study Team)** | Queries resolved, data verified |

## Roles in Data Quality

| Role                           | Capabilities                               |
| ------------------------------ | ------------------------------------------ |
| **Data Reviewer (Study Team)** | Review data, raise queries, verify records |
| **Site Team (CRC, PI, etc.)**  | Respond to queries, update data            |
| **Reviewer**                   | View queries (read-only)                   |

## Query Metrics

Track data quality through metrics:

| Metric              | Description                     |
| ------------------- | ------------------------------- |
| **Open Queries**    | Queries awaiting response       |
| **Query Rate**      | Queries per submitted record    |
| **Resolution Time** | Average time to resolve queries |
| **Query by Type**   | Distribution of query reasons   |

## Data Verification

After queries are resolved:

<Steps>
  <Step title="Review Resolution">
    Examine the query response and any data changes.
  </Step>

  <Step title="Verify Data">
    Confirm data accuracy.
  </Step>

  <Step title="Mark Verified">
    Update record status to Verified (Study Team).
  </Step>
</Steps>

<Note>
  Verification indicates the study team has reviewed and accepted the data. It does not imply clinical judgment.
</Note>

## Best Practices

<AccordionGroup>
  <Accordion title="Clear Query Text">
    Write queries that clearly explain what information is needed.
  </Accordion>

  <Accordion title="Timely Review">
    Review submitted data promptly to identify issues early.
  </Accordion>

  <Accordion title="Consistent Standards">
    Apply consistent review criteria across all sites.
  </Accordion>

  <Accordion title="Track Patterns">
    Monitor query patterns to identify training needs.
  </Accordion>
</AccordionGroup>