Table mimic.mimiciii.labevents
Events relating to laboratory tests.

Generated by
Primary key columns
Columns with indexes
Implied relationships
Excluded column relationships
< n > number of related tables
Column Type Size Nulls Auto Default Children Parents Comments
row_id int4 10 Unique row identifier.
subject_id int4 10
patients.subject_id labevents_fk_subject_id R
Foreign key. Identifies the patient.
hadm_id int4 10  √  null
admissions.hadm_id labevents_fk_hadm_id R
Foreign key. Identifies the hospital stay.
itemid int4 10
d_labitems.itemid labevents_fk_itemid R
Foreign key. Identifies the charted item.
charttime timestamp 22  √  null Time when the event occured.
value varchar 200  √  null Value of the event as a text string.
valuenum float8 17,17  √  null Value of the event as a number.
valueuom varchar 20  √  null Unit of measurement.
flag varchar 20  √  null Flag indicating whether the lab test value is considered abnormal (null if the test was normal).

Table contained 27,854,055 rows at Thu Oct 12 12:29 EDT 2017

Column(s) Type Sort Constraint Name
row_id Primary key Asc labevents_rowid_pk
subject_id Performance Asc labevents_idx01
hadm_id Performance Asc labevents_idx02
itemid Performance Asc labevents_idx03

Close relationships  within of separation: