nova_est_pctco2g45 rco2avgnr
Name
nova_est_pctco2g50
Label
Percentage total sleep time where end-tidal carbon dioxide > 50 mmHg (normalized for capnograph type)
Description

For BCI: nova_est_pctco2g50 = (rpctco2g50 * 0.42979) + 0.64553

Calculation
nova_est_pctco2g50 = (rpctco2g50 * 0.42979) + 0.64553
Units
percentage of carbon dioxide
Type
numeric
Visit Number vs Percentage total sleep time where end-tidal carbon dioxide > 50 mmHg (normalized for capnograph type)
N Mean StdDev Median Min Max Unknown Total
Baseline 364 10.8 ± 20.5 1.1 0.0 97.0 89 453
Follow-up 324 8.1 ± 16.2 1.0 0.0 92.9 129 453
Treatment Arm vs Percentage total sleep time where end-tidal carbon dioxide > 50 mmHg (normalized for capnograph type)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 364 10.8 ± 20.5 1.1 0.0 97.0 89 453
Early adenotonsillectomy 186 12.8 ± 22.3 1.8 0.0 97.0 40 226
Watchful waiting 178 8.8 ± 18.4 0.7 0.0 95.3 49 227
Treatment Arm vs Percentage total sleep time where end-tidal carbon dioxide > 50 mmHg (normalized for capnograph type)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 324 8.1 ± 16.2 1.0 0.0 92.9 129 453
Early adenotonsillectomy 161 7.0 ± 14.2 1.0 0.0 87.0 65 226
Watchful waiting 163 9.3 ± 18.0 0.9 0.0 92.9 64 227
Age vs Percentage total sleep time where end-tidal carbon dioxide > 50 mmHg (normalized for capnograph type)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 364 10.8 ± 20.5 1.1 0.0 97.0 89 453
5-7 yrs old 271 11.5 ± 21.5 1.1 0.0 97.0 58 329
8-10 yrs old 93 8.9 ± 17.2 1.0 0.0 78.0 31 124
Age vs Percentage total sleep time where end-tidal carbon dioxide > 50 mmHg (normalized for capnograph type)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 316 8.2 ± 16.2 1.0 0.0 92.9 83 399
5-7 yrs old 217 7.2 ± 14.7 1.2 0.0 92.9 45 262
8-10 yrs old 99 10.3 ± 19.1 0.7 0.0 87.0 38 137
Gender vs Percentage total sleep time where end-tidal carbon dioxide > 50 mmHg (normalized for capnograph type)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 364 10.8 ± 20.5 1.1 0.0 97.0 89 453
Female 185 12.4 ± 22.2 1.1 0.0 97.0 49 234
Male 179 9.2 ± 18.6 1.1 0.0 95.1 40 219
Gender vs Percentage total sleep time where end-tidal carbon dioxide > 50 mmHg (normalized for capnograph type)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 324 8.1 ± 16.2 1.0 0.0 92.9 129 453
Female 164 7.1 ± 14.3 0.9 0.0 78.9 70 234
Male 160 9.2 ± 17.9 1.0 0.0 92.9 59 219
Race vs Percentage total sleep time where end-tidal carbon dioxide > 50 mmHg (normalized for capnograph type)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 364 10.8 ± 20.5 1.1 0.0 97.0 89 453
White 119 7.0 ± 16.8 0.7 0.0 97.0 37 156
Black 212 12.3 ± 21.2 1.7 0.0 95.3 37 249
Other 33 15.3 ± 25.9 1.2 0.0 78.4 15 48
Race vs Percentage total sleep time where end-tidal carbon dioxide > 50 mmHg (normalized for capnograph type)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 324 8.1 ± 16.2 1.0 0.0 92.9 129 453
White 107 5.1 ± 12.9 0.7 0.0 78.9 49 156
Black 186 10.2 ± 18.1 1.5 0.0 92.9 63 249
Other 31 5.8 ± 13.0 0.8 0.0 50.6 17 48