Schema reference / Tables / view MDX source

body_mass_index

Calculated measurement which compares a person's weight and height.

Purpose. To record the Body Mass Index (BMI) of an individual.

Source

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

Columns

Column	Type	Null	Description	Source
`id`	`uuid primary key`	no	Primary key.	—
`form_id`	`uuid` → `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.	—
`body_mass_index_magnitude` `body_mass_index_units`	quantity `numeric`, `text`	yes	Body mass index	`/data[at0001]/events[at0002]/data[at0003]/items[at0004]`
`clinical_interpretation` `clinical_interpretation_code` `clinical_interpretation_system` `clinical_interpretation_valueset_id`	coded text `text`, `text`, `text`, `text`	yes	Clinical interpretation	`/data[at0001]/events[at0002]/data[at0003]/items[at0013]`
`comment`	`text`	yes	Comment	`/data[at0001]/events[at0002]/data[at0003]/items[at0012]`
`confounding_factors`	`text`	yes	Confounding factors	`/data[at0001]/events[at0002]/state[at0014]/items[at0011]`
`method` `method_code` `method_system` `method_valueset_id`	coded text `text`, `text`, `text`, `text`	yes	Method	`/protocol[at0005]/items[at0006]`
`formula`	`text`	yes	Formula	`/protocol[at0005]/items[at0010]`

Constraints

check ((body_mass_index_magnitude is null and body_mass_index_units is null) or (body_mass_index_magnitude is not null and body_mass_index_units is not null))
check (body_mass_index_magnitude is null or (body_mass_index_units = 'kg/m2' and body_mass_index_magnitude between 0 and 1000) or (body_mass_index_units = '[lb_av]/[in_i]2' and body_mass_index_magnitude between 0 and 1000))
check ((clinical_interpretation_code is null and clinical_interpretation_system is null and clinical_interpretation_valueset_id is null) or (clinical_interpretation is not null and clinical_interpretation_code is not null and clinical_interpretation_system is not null and clinical_interpretation_valueset_id is not null))
check ((method_code is null and method_system is null and method_valueset_id is null and method is null) or (method is not null and method_code is not null and method_system is not null and method_valueset_id is not null))

Unique

form_block_id

References

Columns	Target	On delete
`form_id`	`form`	cascade
`form_id, form_block_id`	`form_block`	cascade
`clinical_interpretation_valueset_id, clinical_interpretation_code, clinical_interpretation_system, clinical_interpretation`	`valueset_code`	restrict
`method_valueset_id, method_code, method_system, method`	`valueset_code`	restrict

Indexes

body_mass_index_form_id_idx on form_id

Value sets

Value set	Codes
`org.openehr::openEHR-EHR-OBSERVATION.body_mass_index.v2/method`	2