Table 1 Size of each database before and after applying the exclusion criteria

From: Deep learning for obstructive sleep apnea diagnosis based on single channel oximetry

Database

Original number of recordings

Technical fault

\(\widehat{{{{{{\rm{TST}}}}}}} < 4\)

Age < 18 years

Recordings after exclusion criteria

SHHS1

5778

59 (1%)

99 (2%)

0 (0%)

5620 (97%)

SHHS2

621

0 (0%)

16 (3%)

0 (0%)

605 (97%)

UHV

369

0 (0%)

12 (3%)

0 (0%)

357 (97%)

CFS

728

13 (2%)

71 (10%)

58 (8%)

586 (80%)

MROS

3937

51 (1%)

133 (3%)

0 (0%)

3753 (95%)

MESA

2056

0 (0%)

54 (3%)

0 (0%)

2002 (97%)

  1. 74% of SHHS2 were removed, because the patients from SHHS1-train were excluded to avoid any leakage information.