Access to reperfusion therapy and mortality outcomes in patients with ST-segment elevation myocardial infarction under universal health coverage in Thailand

Table 2 Mortality by reperfusion status and reperfusion-mortality association

	Mortality
	30-day	180-day
1. Mortality, n (%)
No reperfusion (n = 20,159)	7959 (39.5)	9105 (45.2)
PCI (n = 27,983)	3600 (12.9)	4649 (16.6)
TBL only (n = 16,405)	3071 (18.7)	3708 (22.6)
2. Difference in mortality^a, % points (95% CI)
PCI vs. no reperfusion	−26.6* (−25.8, −27.4)	−28.6* (−27.7, −29.4)
TBL only vs. no reperfusion	−20.8* (−19.9, − 21.7)	−22.6* (− 21.6, − 23.5)
PCI vs. TBL only	−5.9* (−5.1, −6.6)	−6.0* (−5.2, −6.8)
3. Difference in probability of dying^b, % points (95% CI)
PCI vs. no reperfusion	−19.6* (− 18.2, − 21.0)	−21.1* (− 19.6, − 22.5)
TBL only vs. no reperfusion	−14.1* (− 13.3, − 14.9)	−15.1* (−14.3, −16.0)
PCI vs. TBL only	−5.5* (− 2.7, −8.2)	−5.4** (− 2.4, −8.5)

* P < 0.001; ** P < 0.01
^a Crude analysis without any adjustment for baseline differences between treatment and control groups
^b Average treatment effect on the treated (ATET), using PSM between treatment and control groups (See Additional file 1: Figures S4A, B, and C and Table S2 for the covariates predicting treatment probabilities); 95% CI based on robust standard error
CI confidence interval; n number of patients; PCI percutaneous coronary intervention; PSM propensity-score matching; TBL thrombolysis

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