psg_cai0p psg_cai4pa
Name
psg_cai4p
Label
Calculated - Central apnea index (4% desats)
Description

missing if total sleep time is 0

Calculation
psg_cai4p = 60*(carbp4 + carop4 + canbp4 + canop4)/slpprdp
Units
number of events per hour
Type
numeric
Tags
cai_ca4u_f1t1
PATS Visit timepoint vs Calculated - Central apnea index (4% desats)
N Mean StdDev Median Min Max Unknown Total
Screening Visit 499 0.3 ± 0.7 0.1 0.0 9.6 56 555
Baseline Visit - - - - - - 332 332
Month-6 Interim Visit - - - - - - 283 283
Month-12 Endpoint Visit 232 0.2 ± 0.4 0.1 0.0 3.9 59 291
Assigned treatment arm vs Calculated - Central apnea index (4% desats)
Screening Visit
N Mean StdDev Median Min Max Unknown Total
Total 330 0.2 ± 0.4 0.1 0.0 2.9 - 330
Early Adenotonsillectomy 167 0.2 ± 0.4 0.1 0.0 2.6 - 167
Watchful Waiting with Supportive Care 163 0.2 ± 0.4 0.1 0.0 2.9 - 163
Assigned treatment arm vs Calculated - Central apnea index (4% 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 (4% 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 (4% desats)
Month-12 Endpoint Visit
N Mean StdDev Median Min Max Unknown Total
Total 232 0.2 ± 0.4 0.1 0.0 3.9 59 291
Early Adenotonsillectomy 117 0.2 ± 0.4 0.1 0.0 3.9 30 147
Watchful Waiting with Supportive Care 115 0.2 ± 0.3 0.0 0.0 2.9 29 144
Child's sex vs Calculated - Central apnea index (4% desats)
Screening Visit
N Mean StdDev Median Min Max Unknown Total
Total 499 0.3 ± 0.7 0.1 0.0 9.6 56 555
Male 258 0.3 ± 0.8 0.1 0.0 9.6 28 286
Female 241 0.4 ± 0.6 0.1 0.0 4.0 28 269
Child's sex vs Calculated - Central apnea index (4% 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 (4% 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 (4% desats)
Month-12 Endpoint Visit
N Mean StdDev Median Min Max Unknown Total
Total 232 0.2 ± 0.4 0.1 0.0 3.9 59 291
Male 120 0.2 ± 0.5 0.0 0.0 3.9 25 145
Female 112 0.2 ± 0.3 0.1 0.0 1.4 34 146
Child's race vs Calculated - Central apnea index (4% desats)
Screening Visit
N Mean StdDev Median Min Max Unknown Total
Total 499 0.3 ± 0.7 0.1 0.0 9.6 56 555
American Indian/Alaska Native 3 0.0 ± 0.0 0.0 0.0 0.0 - 3
Asian 9 0.4 ± 0.6 0.1 0.0 2.0 1 10
Native Hawaiian or Other Pacific Islander 1 0.2 - 0.2 0.2 0.2 - 1
Black or African American 128 0.3 ± 0.5 0.1 0.0 2.9 33 161
White 332 0.4 ± 0.8 0.1 0.0 9.6 19 351
More than one race 23 0.3 ± 0.6 0.1 0.0 2.2 2 25
Unknown or not reported 3 0.5 ± 0.8 0.0 0.0 1.4 1 4
Child's race vs Calculated - Central apnea index (4% 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 (4% 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 (4% desats)
Month-12 Endpoint Visit
N Mean StdDev Median Min Max Unknown Total
Total 232 0.2 ± 0.4 0.1 0.0 3.9 59 291
American Indian/Alaska Native 3 0.2 ± 0.3 0.0 0.0 0.6 - 3
Asian 4 0.1 ± 0.1 0.05 0.0 0.3 - 4
Native Hawaiian or Other Pacific Islander - - - - - - - -
Black or African American 56 0.1 ± 0.2 0.0 0.0 0.7 12 68
White 156 0.2 ± 0.4 0.1 0.0 3.9 47 203
More than one race 12 0.09 ± 0.2 0.0 0.0 0.6 - 12
Unknown or not reported 1 0.4 - 0.4 0.4 0.4 - 1