I wanted to do a little comparison and searched for data as I need decide soon where to go for treatment (maybe a surgery). So I start saying that diagnostic error is a global problem, not unique to Thailand. I have 2 close friends who went to private clinics in Europe and both of them had cancer and was not diagnosed. Unfortunately for both of them when the cancer was found it was too late. For US: ~5.7% of ED visits involve a diagnostic error. Serious harms (death or permanent disability) estimated at ~795,000 per year across all settings. For heart attacks specifically, missed diagnosis rates around 2%. Overall, most people experience at least one diagnostic error in their lifetime. Europe / OECD: Similar rates. Diagnostic errors estimated at up to 15% of diagnoses (inaccurate, delayed or wrong). Hospital-based error rates comparable to North America. Roughly 11% of adverse events in places like the Netherlands linked to diagnostic failure. Thailand: Limited national statistics. One large private hospital network study found diagnostic errors in ~3% of lab-related incidents (mostly pre-analytical), with very few causing wrong diagnoses. High-profile individual cases (like the Ratchaburi chest-pain death) get heavy media attention, but systematic national data is sparse. Public hospitals face volume pressure and referral delays; top private/JCI hospitals perform closer to international standards. So when can safely say that missed or delayed serious diagnoses happen in US, Europe, and Thailand. Rates are in the same ballpark for major conditions (not so sure about US but I'll assume). The difference is more about hospital quality tier (major public or JCI private vs smaller facilities) and patient advocacy (pushing for second opinions, ECGs, etc.) than nationality of the system.
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