|
GOLD classification
|
Cases (n = 842)
|
AHI < 5 times / h (n = 286)
|
5 times / h ≤ AHI < 15 times / h (n = 362)
|
15 times / h ≤ AHI < 30 times / h (n = 123)
|
AHI ≥ 30 times / h (n = 71)
|
|---|
|
I
|
110(13.06%)
|
19(6.64%)
|
49(13.54%)
|
22(17.89%)
|
20(28.17%)
|
|
II
|
320(38.00%)
|
94(32.87%)
|
148(40.88%)
|
47(38.21%)
|
31(43.66%)
|
|
III
|
304(36.10%)
|
124(43.36%)
|
127(35.08%)
|
38(30.89%)
|
15(21.13%)
|
|
IV
|
108(12.83%)
|
49(17.13%)
|
38(10.50%)
|
16(13.01%)
|
5(7.04%)
|
|
χ2 value
|
–
|
29.247
|
4.363
|
3.652
|
21.035
|
|
P value
|
–
|
< 0.001
|
0.225
|
0.302
|
< 0.001
|
- AHI apnea–hypopnea index;
