---
title: "ecog"
description: "A scale used by clinicians to assess the functional performance status of a patient with a diagnosis of cancer."
---

A scale used by clinicians to assess the functional performance status of a patient with a diagnosis of cancer.

**Purpose.** To record the measurement of the functional performance status of a patient with a diagnosis of cancer.

## Source

| Model | Leg | Role |
|---|---|---|
| `openEHR-EHR-OBSERVATION.ecog.v2` | openEHR | defines this table |

## Columns

| Column | Type | Null | Description | Source |
|---|---|---|---|---|
| `id` | `uuid primary key` | no | Primary key. | — |
| `form_id` | `uuid` → [`form`](/docs/tables/form) | no | The form this entry was recorded on. | — |
| `form_block_id` | `uuid` | yes | The block within the form, when the entry is bound to one. | — |
| `ecog_performance_status`<br />`ecog_performance_status_code`<br />`ecog_performance_status_system`<br />`ecog_performance_status_numeric`<br />`ecog_performance_status_valueset_id` | coded text<br />`text`, `text`, `text`, `numeric`, `text` | yes | ECOG performance status | `/data[at0001]/events[at0002]/data[at0003]/items[at0004]` |

## Constraints

```sql
check ((ecog_performance_status_code is null and ecog_performance_status_system is null and ecog_performance_status_numeric is null and ecog_performance_status is null) or (ecog_performance_status_valueset_id is not null and ecog_performance_status_code is not null and ecog_performance_status_system is not null and ecog_performance_status_numeric is not null and ecog_performance_status is not null))
```

## Unique

- `form_block_id`

## References

| Columns | Target | On delete |
|---|---|---|
| `form_id` | [`form`](/docs/tables/form) | cascade |
| `form_id, form_block_id` | [`form_block`](/docs/tables/form_block) | cascade |
| `ecog_performance_status_valueset_id, ecog_performance_status_code, ecog_performance_status_system, ecog_performance_status, ecog_performance_status_numeric` | [`valueset_code`](/docs/tables/valueset_code) | restrict |

## Indexes

- `ecog_form_id_idx` on `form_id`

## Value sets

| Value set | Codes |
|---|---|
| `org.openehr::openEHR-EHR-OBSERVATION.ecog.v2/ecog_performance_status` | 6 |