Why is SDG 3.4 so hard to track? Because the goal depends on a chain that is weak at nearly every step, from premature mortality reduction to indicator performance, country coverage, mortality data collection, and surveillance capacity[[cite:1]][[cite:2]].
🧵 1/5
The headline problem is slow progress: the review says only a small share of countries are on track, and the probability of dying from the four major NCDs between ages 30 and 70 fell only slightly[[cite:3]][[cite:4]].
🧵 2/5
The indicator picture is uneven. Progress stalled on unhealthy diet reduction, public awareness, and mortality data collection, even though tobacco and alcohol tax implementation and time-bound national targets showed more movement[[cite:5]].
🧵 3/5
Coverage is still patchy. In the 2021 review, only two of the ten NCD progress indicators were met by at least half of the 176 countries that signed the SDGs[[cite:6]][[cite:7]].
🧵 4/5
And this is a 2021 review assessment, not a live 2026 dashboard. The paper was a literature review done in September 2020 and published in 2021, so it reflects evidence available up to that point, not later country updates[[cite:8]].
🧵 5/5
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