[Retracted] Association of β2-Agonist Receptor Gene Polymorphisms with Acute Exacerbations of COPD: A Prospective Observational Study

Table 2

Comparison of treatment methods for different genotypes.

	Arg/Arg	Arg/Gly	Gly/Gly
LAMA	0	5 (8.2%)	1 (5.6%)	1.511	0.825
LABA + ICS	1 (5.0%)	9 (14.8%)	3 (16.7%)
ICS + LABA + LAMA	19 (95.0%)	47 (77.0%)	14 (77.8%)
Antibiotics used
0	8 (40.0%)	31 (50.8%)	12 (66.7%)	14.944	0.021
1	2 (10.0%)	17 (27.9%)	6 (33.3%)
2	6 (30.0%)	6 (9.8%)	0
≥3	4 (20.0%)	7 (11.5%)	0
Number of hormones
0	13 (65.0%)	40 (65.6%)	14 (77.8%)	14.732	0.022
1	1 (5.0%)	17 (27.9%)	4 (22.2%)
2	4 (20.0%)	2 (3.3%)	0
≥3	2 (10.0%)	2 (3.3%)	0
Number of acute exacerbations
0	5 (25.0%)	31 (50.8%)	11 (61.1%)	12.558	0.051
1	6 (30.0%)	12 (19.7%)	7 (38.9%)
2	5 (25.0%)	10 (16.4%)	0
≥3	4 (20.0%)	8 (13.1%)	0

Note. LAMA, LABA, LAMA.