The Relationship Between Morning Symptoms and the Risk of Future Exacerbations in COPD [Corrigendum]

This article refers to:

The Relationship Between Morning Symptoms and the Risk of Future Exacerbations in COPD

Sun T, Li X, Cheng W, et al. Int J Chron Obstruct Pulmon Dis. 2020;15:1899–1907.

The authors have advised that there are errors in Table 3 on page 1905. The correct table is shown below.

Table 3 The Relationship Between Morning Symptoms and the Exacerbations of the One-Year Follow-Up Period

	All Patients (N = 78)	Morning Symptoms Score < 30.0 (N = 39)	Morning Symptoms Score ≥ 30.0 (N = 39)	P-value
Exacerbations during follow-up, n (%)
No exacerbation	46 (59.0)	27 (69.2)	19 (48.7)	0.066
Moderate exacerbations	22 (28.2)	11 (28.2)	11 (28.2)	1.000
Severe exacerbations	17 (21.8)	3 (7.7)	14 (35.9)	0.003
Frequent exacerbations	17 (21.8)	6 (15.4)	11 (28.2)	0.170
Exacerbations during follow-up, median [IQR]
Total exacerbations	0 (0,1)	0 (0,1)	1 (0,2)	0.078
Moderate exacerbations	0 (0,1)	0 (0,1)	0 (0,1)	0.950
Severe exacerbations	0 (0,0)	0 (0,0)	0 (0,1)	0.002

Notes: Data are presented as the median (IQR), or number (%). Data were compared between two groups using Mann–Whitney U-test, and 2χ test.

Abbreviations: SD, standard deviation; IQR, interquartile range.