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-- ------------------------------------------------------------------
-- Title: ICU stay detail
-- Description: Each row represents a single ICU stay. Patient demographics
-- are summarised for each stay.
-- ------------------------------------------------------------------
-- (Optional) Define which schema to work on
-- SET search_path TO eicu_crd;
DROP MATERIALIZED VIEW IF EXISTS icustay_detail CASCADE;
CREATE MATERIALIZED VIEW icustay_detail as (
SELECT pt.uniquepid, pt.patienthealthsystemstayid, pt.patientunitstayid, pt.unitvisitnumber,
pt.hospitalid, h.region, pt.unittype,
pt.hospitaladmitoffset, pt.hospitaldischargeoffset,
0 AS unitadmitoffset, pt.unitdischargeoffset,
ap.apachescore AS apache_iv,
pt.hospitaldischargeyear,
pt.age,
CASE WHEN lower(pt.hospitaldischargestatus) like '%alive%' THEN 0
WHEN lower(pt.hospitaldischargestatus) like '%expired%' THEN 1
ELSE NULL END AS hosp_mort,
CASE WHEN lower(pt.gender) like '%female%' THEN 0
WHEN lower(pt.gender) like '%male%' THEN 1
ELSE NULL END AS gender,
pt.ethnicity, pt.admissionheight, pt.admissionweight, pt.dischargeweight,
ROUND(pt.unitdischargeoffset/60) AS icu_los_hours
FROM patient pt
LEFT JOIN hospital h
ON pt.hospitalid = h.hospitalid
LEFT JOIN apachepatientresult ap
ON pt.patientunitstayid = ap.patientunitstayid
AND ap.apacheversion = 'IV'
ORDER BY pt.uniquepid, pt.unitvisitnumber, pt.age
);