Data dictionary for Chapter 5, MIMIC Books

 "aline_flg",: IAC used (binary, 1 = year, 0 = no): Indwelling arterial catheters
 "icu_los_day",: length of stay in ICU (days, numeric)
 "hospital_los_day",: length of stay in hospital (days, numeric)
 "age",: age at baseline (years, numeric)
 "gender_num",: patient gender (1 = male; 0=female)
 "weight_first",: first weight, (kg, numeric)
 "bmi",: patient BMI, (numeric)
 sapsi_first: first SAPS I score (numeric)
 sofa_first: first SOFA score (numeric)
 service_unit: type of service unit (character: FICU, MICU, SICU)
 "service_num",: service as a numeric (binary: 0 =  MICU or FICU, 1 = SICU)
 day_icu_intime: day of week of ICU admission (character)
 "day_icu_intime_num",: day of week of ICU admission (numeric, corresponds with day_icu_intime)
 hour_icu_intime: hour of ICU admission (numeric, hour of admission using 24hr clock)
 hosp_exp_flg: death in hospital (binary: 1 = yes, 0 = no)
 icu_exp_flg: death in ICU (binary: 1 = yes, 0 = no)
 day_28_flg: death within 28 days (binary: 1 = yes, 0 = no)
 mort_day_censored: day post ICU admission of censoring or death (days, numeric)
 censor_flg: censored or death (binary: 0 = death, 1 = censored)
 sepsis_flg: sepsis present (binary: 0 = no, 1 = yes -- absent (0) for all)
 "chf_flg",: Congestive heart failure (binary: 0 = no, 1 = yes)
 "afib_flg",: Atrial fibrillation  (binary: 0 = no, 1 = yes)
 "renal_flg",: Chronic renal disease (binary: 0 = no, 1 = yes)
 "liver_flg",: Liver Disease (binary: 0 = no, 1 = yes)
 "copd_flg",: Chronic obstructive pulmonary disease (binary: 0 = no, 1 = yes)
 "cad_flg",: Coronary artery disease (binary: 0 = no, 1 = yes)
 "stroke_flg",: Stroke (binary: 0 = no, 1 = yes)
 "mal_flg",: Malignancy (binary: 0 = no, 1 = yes)
 "resp_flg",: Respiratory disease (non-COPD) (binary: 0 = no, 1 = yes)
 "map_1st",: Mean arterial pressure (mmHg, numeric)
 "hr_1st",: Heart Rate (numeric)
 "temp_1st",: Temperature (F, numeric)
 "spo2_1st",: S_pO_2 (%, numeric)
 "abg_count",: arterial blood gas count (number of tests, numeric)
 "wbc_first",: first White blood cell count (K/uL, numeric)
 "hgb_first",: first Hemoglobin (g/dL, numeric)
 "platelet_first",: first Platelets (K/u, numericL)
 "sodium_first",: first Sodium (mEq/L, numeric)
 "potassium_first",: first Potassium (mEq/L, numeric)
 "tco2_first",: first Bicarbonate (mEq/L, numeric)
 "chloride_first",: first Chloride (mEq/L, numeric)
 "bun_first",: first Blood urea nitrogen (mg/dL, numeric)
 "creatinine_first",: first Creatinine (mg/dL, numeric)
 po2_first: first PaO_2 (mmHg, numeric)
 pco2_first: first PaCO_2 (mmHg, numeric)
 iv_day_1: input fluids by IV on day 1 (mL, numeric)
