Table 1

Participant characteristics and SpO2 summary statistics calculated without manual artefact removal

Summary statisticAllnon-REM/QSREM/ASWake
2 weeks (N=30, 13 female)
 Age (days)14±3
 Duration (min)549.6 (396–1024)153.9 (114–544)203.8 (93–270)156.0 (38–357)
 Artefact-free duration (min)503.0 (343–635)151.2 (113–220)193.9 (93–266)117.6 (15–231)
 SAT5 (%Hb)95.0 (88–97)96.0 (85–98)95.0 (88–97)92.0 (73–99)
 SAT10 (%Hb)96.0 (92–98)97.0 (93–98)96.0 (92–98)96.0 (77–99)
 Median SpO2 (%Hb)98.0 (95–100)98.0 (95–100)97.5 (95–100)98.0 (96–100)
 Mean SpO2 (%Hb)97.6 (95–99)97.9 (95–99)97.2 (95–99)97.6 (93–100)
3 months (N=25, 10 female)
Age (days)97±9
 Duration (min)534.5 (411–660)249.5 (151–327)189.5 (86–302)75.5 (8–313)
 Artefact-free duration (min)492.9 (391–621)249.5 (149–327)189.5 (73–302)60.6 (8–169)
 SAT5 (%Hb)97.0 (90–99)98.0 (94–99)97.0 (93–99)85.0 (68–99)
 SAT10 (%Hb)98.0 (95–99)98.0 (95–100)98.0 (94–99)91.0 (76–100)
 Median SpO2 (%Hb)99.0 (97–100)99.0 (97–100)99.0 (97–100)99.0 (97–100)
 Mean SpO2 (%Hb)98.5 (97–100)98.7 (97–100)98.9 (97–100)97.3 (92–100)
6 months (N=27, 10 female)
 Age (days)198±6
 Duration (min)498.6 (367–680)270.6 (160–421)147.0 (88–229)91.5 (20–214)
 Artefact-free duration (min)462.5 (351–654)262.0 (160–397)140.0 (83–227)66.7 (14–179)
 SAT5 (%Hb)97.0 (95–98)97.0 (95–99)97.0 (95–99)96.0 (83–98)
 SAT10 (%Hb)97.0 (96–99)98.0 (96–99)98.0 (96–99)97.0 (86–100)
 Median SpO2 (%Hb)98.0 (97–100)98.0 (97–100)99.0 (97–100)99.0 (98–100)
 Mean SpO2 (%Hb)98.3 (97–100)98.3 (97–100)98.5 (97–100)98.2 (96–99)
12 months (N=26, 10 female)
 Age (days)371±14
 Duration (min)499.0 (259–744)272.3 (131–532)128.3 (47–216)72.0 (3–251)
 Artefact-free duration (min)442.8 (205–612)267.1 (119–355)121.9 (47–216)43.4 (3–132)
 SAT5 (%Hb)97.0 (89–99)97.0 (95–99)97.0 (83–99)95.5 (69–99)
 SAT10 (%Hb)98.0 (95–99)98.0 (95–99)98.0 (94–99)97.0 (75–99)
 Median SpO2 (%Hb)99.0 (96–100)98.5 (96–100)99.0 (96–100)99.0 (97–100)
 Mean SpO2 (%Hb)98.4 (96–100)98.4 (96–100)98.5 (96–100)98.2 (95–100)
24 months (N=20, 5 female)
 Age (days)725±8
 Duration (min)486.3 (323–658)337.8 (240–512)112.8 (41–188)37.5 (0–155)
 Artefact-free duration (min)481.5 (220–582)306.7 (181–385)103.9 (38–188)28.9 (0–138)
 SAT5 (%Hb)97.5 (96–99)98.0 (96–99)98.0 (95–99)97.0 (73–98)
 SAT10 (%Hb)98.0 (96–99)98.0 (96–100)98.0 (96–99)97.0 (75–100)
 Median SpO2 (%Hb)99.0 (97–100)99.0 (97–100)99.0 (97–100)99.0 (97–100)
 Mean SpO2 (%Hb)98.7 (97–100)98.7 (97–100)98.8 (97–100)97.9 (94–100)
  • All summary statistics are calculated from SpO2 data without manual artefact removal. Data are presented for the entire recording (All), and stratified according to sleep-states non-REM, REM and wake for children at 3 months and older; and quiet sleep (QS), active sleep (AS) and wake for children at the neonatal study. SAT5, 5th percentile SpO2 value; SAT10, 10th percentile SpO2 value. Values are presented as median (range) or mean±SD. REM, rapid eye movement.