## Analysis of TB Epidemiology in India ### Correct Statements (Options 0, 2, 3) **Key Point:** India remains the TB capital of the world with the highest absolute number of TB cases globally. | Epidemiological Feature | Status | |---|---| | Global TB burden | ~27% of global cases | | Absolute case numbers | Highest worldwide | | Pulmonary:Extrapulmonary ratio | ~4:1 | | MDR-TB prevalence | Among highest globally | **High-Yield:** India's TB epidemiology is characterized by: - Highest case load (>2.7 million estimated TB cases annually) - Predominantly pulmonary disease (75–80% of cases) - Significant MDR-TB burden (~2.4% of new cases, ~21% of previously treated cases) ### Incorrect Statement (Option 1) **Warning:** The case fatality rate (CFR) of TB in India has **DECREASED**, not increased, over the past decade. **Clinical Pearl:** Improvements in: - DOTS (Directly Observed Therapy Short-course) coverage - Treatment success rates (>85% in recent years) - Access to anti-TB drugs - Nutritional support programs These have collectively reduced TB mortality despite persistent high incidence. The CFR has fallen from ~10–12% (2000s) to ~3–5% (2020s) in India. **Mnemonic: DOTS Success** — Directly Observed Therapy Short-course has improved Outcomes, Treatment adherence, and Survival, thereby reducing CFR. ### Why This Matters Confusing CFR trends is a common trap. High incidence ≠ high CFR when treatment programs are effective. India's challenge is case detection and treatment initiation, not mortality once treatment begins.
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