Table 4 Descriptive statistics for EtCO2 wave signal parameters by exposure within open and sealed HEF and paired t-test for EtCO2 signal parameters
From: A novel application of capnography during controlled human exposure to air pollution
EtCO2 Wave Signal Statistics | EXP | Paired t-test (exp1-exp2) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Â | 1 | 2 | Â | Â | ||||||
| Â | N | Mean | Std | CV | N | Mean | Std | CV | t | p| |
MEAN | 60 | 23.73 | 2.25 | 9.47 | 54 | 22.86 | 1.60 | 7.01 | 1.21 | 0.31 |
STDEV | 60 | 13.85 | 1.14 | 8.21 | 54 | 13.81 | 0.69 | 5.01 | 0.16 | 0.88 |
MINIMUM | 60 | 0.31 | 0.22 | 72.02 | 54 | 0.78 | 0.86 | 110.16 | 1.04 | 0.37 |
MEDIAN | 60 | 30.60 | 3.81 | 12.47 | 54 | 29.55 | 3.59 | 12.15 | 0.59 | 0.60 |
RMS | 60 | 27.49 | 1.75 | 6.37 | 54 | 26.67 | 1.45 | 5.43 | 1.21 | 0.31 |