Table 1—

Subject characteristics

FNHTCH
Subjects n5050
Male/female n40/1040/10
Age yrs44.2±10.646.3±10.7
Body mass index kg·m−226.4±4.127.4±4.4
AHI events·h−127.4 (9.5–47.6)33.6 (12.3–65.2)
ODI events·h−115.8 (5.8–36.4)25.8 (8.3–41.3)
Sleep efficiency %80.9±10.776.3±11.9
Patients with AHI n
 ≥5 events·h−144 (88)45 (90)
 ≥15 events·h−130 (60)35 (70)
 ≥30 events·h−124 (48)28 (56)
Flow-RDI home night 1 events·h−114.2 (8.5–32.9)16.3 (8.4–31.9)
Flow-RDI home night 2 events·h−115.1 (8.6–37.5)15.7 (7.8–36.1)
Flow-RDI hospital night events·h−116.5 (8.8–36.0)22.9 (10.3–45.1)
  • Data are presented as mean±sd, median (interquartile range), or n (%). FNH: Fukuoka National Hospital, Fukuoka, Japan; TCH: Tenri City Hospital, Tenri, Japan; AHI: apnoea/hypopnoea index; ODI: oxygen desaturation index at the threshold of 3%; flow-RDI: flow respiratory disturbance index.