readme update

Author: RafaaAli

3_data_exploration/README.md

@@ -209,3 +209,171 @@ Key Takeaways
   with multiple prior episodes.
 - Access pathways: Self-referral (38.1%) and criminal justice (20.5%)
   are primary entry points
+
+## Discharge Data Analysis
+
+### 7. Demographic & Background Exploration
+
+The dataset shows distinct patterns in the population entering and leaving treatment.
+
+Sex Distribution:
+
+Male: 64.7%
+
+Female: 35.3%
+
+Conclusion: The treatment population remains predominantly male,
+accounting for nearly two-thirds of all discharges.
+
+Age Distribution:
+
+Second Most Common: Adults aged 35–44 (28.3%)
+
+Conclusion: Treatment is heavily concentrated among young to
+middle-aged adults (ages 25–44), representing over 65% of the
+total population.
+
+Race/Ethnicity Distribution:
+Black/African American: 20.0%
+Race/Ethnicity Distribution:
+
+Black/African American: 20.0%
+
+Hispanic/Latino: 15.2%
+
+Conclusion: White individuals constitute the majority of
+discharges, followed by Black and Hispanic populations.
+
+Marital Status:
+
+Never Married: ~52% (Dominant category)
+
+Conclusion: Single individuals (Never Married) represent more than
+Conclusion: Single individuals (Never Married) represent more
+than half of the treatment population, indicating lower social
+support structures compared to married individuals.
+
+### 8. Substance Use Patterns
+
+Primary Substance:
+
+Alcohol: 35.5% (Rank: #1)
+
+Heroin: 16.9%
+
+Marijuana/Hashish: ~12-14%
+
+Methamphetamine: ~10-11%
+
+Other Opiates/Synthetics: ~8-9%
+
+Cocaine/Crack: ~5-6%
+
+Route of Administration:
+
+Smoking: Primary route for Cocaine/Crack and Marijuana.
+
+Oral: Dominant route for Alcohol and Other Opiates.
+
+Conclusion: Alcohol remains the single most common substance
+(35.5%), but Opioids (Heroin + Other Opiates) combined account for
+nearly 26% of all discharges, representing a significant burden on
+the system.
+
+### 3. Treatment History & Referral Sources
+
+Conclusion: Over 60% of patients have at least one prior
+treatment episode, reinforcing the chronic, relapsing nature of
+Prior Treatment Episodes:
+
+### 9. Treatment History & Referral Sources
+
+Conclusion: Over 60% of patients have at least one prior
+treatment episode, reinforcing the chronic, relapsing nature of
+the condition.
+
+Prior Treatment Episodes:
+5+ Prior Episodes: ~15.0%
+
+Conclusion: Over 60% of patients have at least one prior treatment
+episode, reinforcing the chronic, relapsing nature of the condition.
+
+### 4. Service Types & Length of Stay (LOS)
+
+Individual/Self: ~35-40% (Primary voluntary source)
+
+### 10. Service Types & Length of Stay (LOS)
+  
+Referral Sources:
+
+Individual/Self: ~35-40% (Primary voluntary source)
+
+Criminal Justice/DUI: ~30-35% (Primary mandatory source)
+
+Community/Social Services: ~10-15%
+
+Service Type Distribution:
+Detox (24hr Residential): ~20%
+
+Rehab/Residential: ~15%
+
+### 5. Employment Patterns (Admission vs. Discharge)
+
+Residential: Median stay 30–90 days.
+
+Conclusion: Employment rates show minimal improvement between
+
+### 11. Employment Patterns (Admission vs. Discharge)
+
+Length of Stay:
+
+Detox: Median stay 3–5 days (Short-term).
+
+Residential: Median stay 30–90 days.
+
+The analysis compares economic stability between the start and
+end of treatment.
+Employed (Full/Part-time): ~22%
+
+Conclusion: Employment rates show minimal improvement between
+admission and discharge, suggesting that treatment engagement alone
+does not immediately resolve economic barriers.
+
+Employed (Full/Part-time): ~22%
+
+Conclusion: Employment rates show minimal improvement between
+admission and discharge, suggesting that treatment engagement
+alone does not immediately resolve economic barriers.
+
+### 12. Discharge Outcomes & Mental Health
+
+Co-occurring Disorders: Approximately 45-50% of patients have
+a diagnosed mental health problem.
+
+Impact on Outcome: Patients with co-occurring mental health
+disorders have a slightly lower completion rate and higher
+transfer rate than those without, often requiring more
+intensive or longer-term care.
+episodes.
+
+Vulnerable Populations: Young adults (25-34), unemployed
+Completion Rate: Less than half (47.4%) of all discharges
+result in completed treatment, highlighting a retention gap.
+
+Substance Dominance: Alcohol drives over 1/3 of all admissions,
+but Opioids represent the most severe chronic cases (high prior
+episodes).
+
+Vulnerable Populations: Young adults (25-34), unemployed
+individuals, and those with prior treatment history are the
+most "at-risk" demographic groups in the dataset.
+
+Completion Rate: Less than half (47.4%) of all discharges result in
+completed treatment, highlighting a retention gap.
+
+Substance Dominance: Alcohol drives over 1/3 of all admissions, but
+Opioids represent the most severe chronic cases (high prior episodes).
+
+Vulnerable Populations: Young adults (25-34), unemployed individuals,
+and those with prior treatment history are the most "at-risk" demographic
+groups in the dataset.