Table 3 subgroup analysis.

From: Lung-to-finger circulation time can be measured stably with high reproducibility by simple breath holding method in cardiac patients

Age

n

ICC

95% CI

SEM

 ≥ 75 years old

18

0.85

0.72–0.94

2.564

 < 75 years old

26

0.84

0.73–0.92

2.8

Cardiac index

    

 ≥ 2.2L/min/m2

17

0.81

0.65–0.92

3.232

 < 2.2 L/min/m2

9

0.84

0.61–0.96

2.548

  1. ICC: intraclass correlation coefficient, 95%CI: 95% Confidence Interval, SEM: standard error of the measurement, CI: cardiac index.
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