vitalsign table

The vitalsign table

Patients admitted to the emergency department have routine vital signs taken ever 1-4 hours. These vital signs are stored in the vitalsign table.

Table source: Emergency department information system.

Table purpose: Provides nurse documented vital signs.

Number of rows: 1,651,119.

Links to:

• edstays on stay_id

Table columns

Name	Postgres data type
subject_id	INTEGER NOT NULL
stay_id	INTEGER NOT NULL
charttime	TIMESTAMP(0)
temperature	NUMERIC(10, 4)
heartrate	NUMERIC(10, 4)
resprate	NUMERIC(10, 4)
o2sat	NUMERIC(10, 4)
sbp	INTEGER
dbp	INTEGER
rhythm	TEXT
pain	TEXT

subject_id

subject_id is a unique identifier which specifies an individual patient. Any rows associated with a single subject_id pertain to the same individual.

stay_id

An identifier which uniquely identifies a single emergency department stay for a single patient.

charttime

The time at which the vital signs were charted.

temperature

The patient’s temperature in degrees Farenheit. Some temperatures may be incorrectly documented as Celsius.

heartrate

The patient’s heart rate in beats per minute.

resprate

The patient’s respiratory rate in breaths per minute.

o2sat

The patient’s oxygen saturation measured as a percentage.

sbp, dbp

The patient’s systolic (sbp) and diastolic (dbp) blood pressure measured in millimetres of mercury (mmHg).

rhythm

The patient’s heart rhythm.

pain

The patient’s self-reported level of pain on a scale from 0-10. The pain is documented as free-text and may contain non-numeric entries.