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. 2023 Jul 9;9(3):e001331. doi: 10.1136/bmjsem-2022-001331

Table 3.

Coronary physiology measurements

HIT Standard care Treatment effect P
n=29 n=37
Baseline 12 months Baseline 12 months Change (95% CI)
Clinical features
 IMR 14.8±9.5 13.8±8.0 13.8±5.8 16.8±12.0 –4.3 (–9.1 to 0.6) 0.08
 FFR 0.92±0.04 0.93±0.05 0.92±0.05 0.93±0.05 0.007(–0.02 to 0.04) 0.61
 CFR 4.0±2.5 4.8±2.9 4.2±2.1 4.1±1.9 0.8 (–0.8 to 2.3) 0.32

Data are mean±SD values or mean (95% CI). P values are from mixed-effects multilevel regression and are for between-groups comparisons.

CFR, coronary flow reserve; FFR, fractional flow reserve; HIT, high-intensity interval training; IMR, index of microvascular resistance.