psg_ahi_o0h4_supine psg_cai4p
Name
psg_cai0p
Label
Calculated - Central apnea index (all desats)
Description

missing if total sleep time is 0

Calculation
psg_cai0p = 60*(carbp + carop + canbp + canop)/slpprdp
Units
number of events per hour
Type
numeric
Tags
cai cai_ca0u_f1t1
PATS Visit timepoint vs Calculated - Central apnea index (all desats)
N Mean StdDev Median Min Max Unknown Total
Screening Visit 499 0.7 ± 1.0 0.4 0.0 12.0 56 555
Baseline Visit - - - - - - 332 332
Month-6 Interim Visit - - - - - - 283 283
Month-12 Endpoint Visit 232 0.4 ± 0.8 0.2 0.0 10.1 59 291
Assigned treatment arm vs Calculated - Central apnea index (all desats)
Screening Visit
N Mean StdDev Median Min Max Unknown Total
Total 330 0.5 ± 0.6 0.3 0.0 4.0 - 330
Early Adenotonsillectomy 167 0.5 ± 0.7 0.3 0.0 3.6 - 167
Watchful Waiting with Supportive Care 163 0.5 ± 0.6 0.3 0.0 4.0 - 163
Assigned treatment arm vs Calculated - Central apnea index (all desats)
Baseline Visit
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 330 330
Early Adenotonsillectomy - - - - - - 167 167
Watchful Waiting with Supportive Care - - - - - - 163 163
Assigned treatment arm vs Calculated - Central apnea index (all desats)
Month-6 Interim Visit
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 283 283
Early Adenotonsillectomy - - - - - - 140 140
Watchful Waiting with Supportive Care - - - - - - 143 143
Assigned treatment arm vs Calculated - Central apnea index (all desats)
Month-12 Endpoint Visit
N Mean StdDev Median Min Max Unknown Total
Total 232 0.4 ± 0.8 0.2 0.0 10.1 59 291
Early Adenotonsillectomy 117 0.4 ± 0.6 0.2 0.0 5.1 30 147
Watchful Waiting with Supportive Care 115 0.4 ± 1.0 0.2 0.0 10.1 29 144
Child's sex vs Calculated - Central apnea index (all desats)
Screening Visit
N Mean StdDev Median Min Max Unknown Total
Total 499 0.7 ± 1.0 0.4 0.0 12.0 56 555
Male 258 0.7 ± 1.0 0.3 0.0 12.0 28 286
Female 241 0.7 ± 1.0 0.4 0.0 9.2 28 269
Child's sex vs Calculated - Central apnea index (all desats)
Baseline Visit
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 332 332
Male - - - - - - 162 162
Female - - - - - - 170 170
Child's sex vs Calculated - Central apnea index (all desats)
Month-6 Interim Visit
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 283 283
Male - - - - - - 137 137
Female - - - - - - 146 146
Child's sex vs Calculated - Central apnea index (all desats)
Month-12 Endpoint Visit
N Mean StdDev Median Min Max Unknown Total
Total 232 0.4 ± 0.8 0.2 0.0 10.1 59 291
Male 120 0.4 ± 1.1 0.2 0.0 10.1 25 145
Female 112 0.3 ± 0.4 0.3 0.0 1.8 34 146
Child's race vs Calculated - Central apnea index (all desats)
Screening Visit
N Mean StdDev Median Min Max Unknown Total
Total 499 0.7 ± 1.0 0.4 0.0 12.0 56 555
American Indian/Alaska Native 3 0.3 ± 0.3 0.3 0.0 0.6 - 3
Asian 9 0.7 ± 1.0 0.4 0.0 3.2 1 10
Native Hawaiian or Other Pacific Islander 1 0.7 - 0.7 0.7 0.7 - 1
Black or African American 128 0.5 ± 0.7 0.3 0.0 4.0 33 161
White 332 0.7 ± 1.1 0.4 0.0 12.0 19 351
More than one race 23 0.8 ± 1.3 0.3 0.0 5.1 2 25
Unknown or not reported 3 0.5 ± 0.8 0.1 0.0 1.5 1 4
Child's race vs Calculated - Central apnea index (all desats)
Baseline Visit
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 332 332
American Indian/Alaska Native - - - - - - 3 3
Asian - - - - - - 6 6
Native Hawaiian or Other Pacific Islander - - - - - - - -
Black or African American - - - - - - 73 73
White - - - - - - 235 235
More than one race - - - - - - 14 14
Unknown or not reported - - - - - - 1 1
Child's race vs Calculated - Central apnea index (all desats)
Month-6 Interim Visit
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 283 283
American Indian/Alaska Native - - - - - - 3 3
Asian - - - - - - 4 4
Native Hawaiian or Other Pacific Islander - - - - - - - -
Black or African American - - - - - - 64 64
White - - - - - - 200 200
More than one race - - - - - - 12 12
Unknown or not reported - - - - - - - -
Child's race vs Calculated - Central apnea index (all desats)
Month-12 Endpoint Visit
N Mean StdDev Median Min Max Unknown Total
Total 232 0.4 ± 0.8 0.2 0.0 10.1 59 291
American Indian/Alaska Native 3 0.7 ± 1.1 0.1 0.0 1.9 - 3
Asian 4 0.3 ± 0.2 0.3 0.0 0.5 - 4
Native Hawaiian or Other Pacific Islander - - - - - - - -
Black or African American 56 0.2 ± 0.3 0.1 0.0 1.0 12 68
White 156 0.4 ± 0.9 0.2 0.0 10.1 47 203
More than one race 12 0.2 ± 0.3 0.1 0.0 0.8 - 12
Unknown or not reported 1 0.5 - 0.5 0.5 0.5 - 1