CARDIOMED Registry — Anonymised Dataset: Haematocrit and in-hospital mortality in ADHF at 2,600 m a.s.l.

# CARDIOMED Registry — Anonymised Dataset
## Haematocrit and in-hospital mortality in acute decompensated heart failure at 2,600 m a.s.l.

**Associated publication:**
Rodríguez Lima DR, Pavia-Velandia PX, Carreño-Jaimes M, León-León NG, Campo-Bautista EM,
Calderon-Barrera JN, Paez-Rincon JD.
*Haematocrit and in-hospital mortality in acute decompensated heart failure at 2,600 m above sea level:
a retrospective analysis of a prospective registry from Bogotá, Colombia.*
Clinical Research in Cardiology, [year]. doi: [to be assigned upon acceptance]

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## Dataset description

This dataset contains anonymised individual-patient data from the CARDIOMED prospective registry,
Hospital Universitario Mayor-Méderi, Bogotá, Colombia (2,600 m above sea level).

| Attribute | Value |
|———–|——-|
| **Patients** | N = 886 (analytic cohort with outcome data) |
| **Enrolment period** | January 2022 – December 2025 |
| **Setting** | Single-centre university hospital, Bogotá, Colombia (2,600 m a.s.l.) |
| **Diagnosis** | Acute decompensated heart failure (ADHF), 2021 ESC criteria |
| **Primary outcome** | In-hospital death |
| **Ethics** | CEI-HUM DVO005 2333-CV1731 (Hospital Universitario Mayor-Méderi / Universidad del Rosario) |

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## Files

| File | Description |
|——|————-|
| `CARDIOMED_Anonymised.csv` | Main dataset — 886 rows × 41 variables |
| `CARDIOMED_Codebook.csv` | Data dictionary with type, values, units, and notes for each variable |
| `README.md` | This file |

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## Variable groups

| Group | Variables |
|——-|———–|
| **Demographics** | patient_id, age_years, sex, sex_label |
| **Haematology** | haematocrit_pct, haemoglobin_gdl |
| **Vital signs** | systolic_bp_mmhg, heart_rate_bpm |
| **Clinical severity** | nyha_class |
| **Comorbidities** | hypertension, diabetes_t2, copd, chronic_kidney_disease, atrial_fibrillation |
| **HF aetiology** | aetiology_ischaemic, aetiology_hypertensive, aetiology_valvular |
| **Echocardiography** | lvef_pct, tapse_mm, spap_mmhg, tapse_spap_ratio, hf_phenotype |
| **Laboratory** | creatinine_mgdl, sodium_meql, potassium_meql, bun_mgdl, troponin_ngl, nt_probnp_pgml |
| **Ferrokinetics (subset n=249)** | tsat_pct, ferritin_ngml, iron_deficiency_esc2021 |
| **Outcomes** | inhospital_death, icu_admission, los_days, killip_class_discharge, levosimendan, cardiogenic_shock, composite_outcome |
| **Derived — altitude** | altitude_anaemia, who_anaemia, altitude_anaemia_gap, haematocrit_quintile |

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## Key thresholds applied

| Threshold | Definition | Reference |
|———–|————|———–|
| **Altitude anaemia** | Hct <44% (males), <38% (females) | Gómez-García et al. *Biomédic