Skip to main content

Table 1 Comparison of the incidence of EID by GOLD classification under different determination methods

From: Prediction of exercise-induced desaturation in COPD patients without resting hypoxemia: a retrospective study

Determination methods

GOLD classification [n (%)]

 

Stage I (n = 24)

Stage II (n = 43)

Stage III (n = 33)

Stage IV (n = 24)

Total (n = 124)

Method A

12 (50.0)

28 (65.1)

20 (60.6)

17 (70.8)

77 (62.1)

Method B

10 (41.7)

24 (55.8)

15(45.5)

15 (62.5)

64 (51.6)

χ2

0.336

0.778

1.521

0.375

2.778

P

0.562

0.378

0.218

0.540

0.096

  1. EID Exercise-induced desatuation; method A SpO2rest–SpO2min ≥ 4% and/or SpO2min < 90%; method B SpO2rest–SpO2end ≥ 4% and/or SpO2end < 90%; SpO2rest resting blood oxygen saturation at the beginning of the test; SpO2min minimum blood oxygen saturation during the test; SpO2end blood oxygen saturation at the end of the test
Back to article page

BMC Pulmonary Medicine

ISSN: 1471-2466

Contact us