Business Intelligence project analyzing Emergency Department patient flow and bottlenecks at Hôpital Charles Nicolle, Tunisia.
# 🏥 Emergency Department BI Solution — Patient Flow & Revenue Optimization
> A Business Intelligence project designed to reduce ED overcrowding, minimize revenue leakage, and improve patient outcomes at **Hôpital Charles Nicolle**.
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## 📌 Project Overview
The Emergency Department at Hôpital Charles Nicolle handles approximately **180,000 visits per year** but faces critical operational challenges: excessive patient wait times, high "Left Without Being Seen" (LWBS) rates, and misaligned staffing schedules.
This BI solution visualizes the **end-to-end patient journey** to help administrators identify and relieve throughput bottlenecks — with a primary goal of reducing the LWBS rate by **40%** within the first year.
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## 🎯 Business Objectives
| Objective | Description |
|---|---|
| Bottleneck Detection | Identify the longest delays across the patient journey stages |
| Peak Demand Analysis | Determine high-volume days and hours for better resource planning |
| Staffing Alignment | Compare actual nurse-to-patient ratios against clinical standards |
| LWBS Risk Profiling | Profile patients most likely to leave without being seen |
| Triage Effectiveness | Detect potential triage misclassifications |
| Re-admission Risk | Track 72-hour return rates by diagnosis |
| Resource Saturation | Monitor bed occupancy trends throughout the day |
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## 📊 Key Performance Indicators (KPIs)
| # | KPI | Formula | Business Relevance |
|---|---|---|---|
| 1 | **Door-to-Doc Time** | Medical assessment time − Arrival time | Most critical metric for patient safety |
| 2 | **LWBS Rate** | Patients left ÷ Total arrivals × 100 | Measures lost revenue & liability risk |
| 3 | **Average Length of Stay (LOS)** | Discharge time − Arrival time | Measures total system efficiency |
| 4 | **Boarding/Waiting Time** | Admission to ward − Decision to admit | Delay in moving patients out of ED |
| 5 | **Bed Occupancy Rate** | Occupied beds ÷ Total beds × 100 | Predicts department saturation …