---
title: "simplified_tanner_whitehouse_3"
description: "A classification for the skeletal maturity stage in children, based on radiological assessment of the hand and wrist."
---

A classification for the skeletal maturity stage in children, based on radiological assessment of the hand and wrist.

**Purpose.** To record the simplified Tanner-Whitehouse III skeletal maturity assessment.

## Source

| Model | Leg | Role |
|---|---|---|
| `openEHR-EHR-OBSERVATION.simplified_tanner_whitehouse_3.v1` | 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. | — |
| `stage`<br />`stage_code`<br />`stage_system`<br />`stage_numeric`<br />`stage_valueset_id` | coded text<br />`text`, `text`, `text`, `numeric`, `text` | yes | Stage | `/data[at0001]/events[at0002]/data[at0003]/items[at0004]` |

## Constraints

```sql
check ((stage_code is null and stage_system is null and stage_numeric is null and stage is null) or (stage_valueset_id is not null and stage_code is not null and stage_system is not null and stage_numeric is not null and stage 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 |
| `stage_valueset_id, stage_code, stage_system, stage, stage_numeric` | [`valueset_code`](/docs/tables/valueset_code) | restrict |

## Indexes

- `simplified_tanner_whitehouse_3_form_id_idx` on `form_id`

## Value sets

| Value set | Codes |
|---|---|
| `org.openehr::openEHR-EHR-OBSERVATION.simplified_tanner_whitehouse_3.v1/stage` | 8 |

