Research Article

Cyclic Alternating Pattern in Obstructive Sleep Apnea Patients with versus without Excessive Sleepiness

Table 3

Comparison of parameters of sleep microstructure in OSA patients with and without ES (ES versus non-ES).

ā€‰ES Non-ES value

The number of arousal216.2 (73.25)207.5 (117.19)0.828
Arousal index36.4 (18.04)35.05 (16.85)0.834
CAP duration, min212.15 (70.88)162.9 (99.33)0.019
CAP rate (%)
= CAP (min)/NREM (min) Ɨ 100
65.98 (11.53)53.93 (15.72)0.033
The number of CAP cycles375.5 (165.5)293 (130.25)0.013
Mean phase A duration, min16.79 (1.72)16.12 (2.11)0.373
Mean phase B duration, min17.41 (2.73)20.22 (3.49)0.028
Subtype A1 duration, min29.53 (26.76)21.25 (19.17)0.299
Subtype A1 (%)8.93 (7.87)6.38 (5.39)0.265
Subtype A1 index
(The number of A1/NREM hours)
8.6 (7.93)3.5 (8.4)0.070
Subtype A2 duration, min49.35 (33.1)21.9 (25.7)0.019
Subtype A2 (%)15.17 (6.35)9.69 (6.98)0.036
Subtype A2 index
(The number of A2/NREM hours)
13.95 (9.82)12.49 (8.62)0.661
Subtype A3 duration, min145.95 (40.1)113.05 (38)0.051
Subtype A3 (%)41.9 (6.02)37.85 (11.4)0.169
Subtype A3 index
(The number of A3/NREM hours)
38.51 (13.83)41.56 (11.66)0.503