. 2021 May 13;2021:5564275. doi: 10.1155/2021/5564275

Table 2.

HRQoL and experienced respiratory symptoms in elderly patients with COPD.

Symptoms		Total HRQoL		PCS		MCS
Symptoms		Mean ± SD	p value^a	Mean ± SD	p value^a	Mean ± SD	p value^a
Cough	No	38.7 ± 18.7	0.5	30.3 ± 16.1	0.3	49.3 ± 25.3	0.9
Cough	Yes	41.5 ± 18.2	0.5	34.3 ± 18.0	0.3	48.9 ± 23.5	0.9

Sputum	No	43.3 ± 21.7	0.5	34.07 ± 21.7	0.9	53.9 ± 26.4	0.25
Sputum	Yes	41.0 ± 17.6	0.5	33.9 ± 17.3	0.9	48.3 ± 23.2	0.25

Shortness of breath	No	51.9 ± 28.7	0.15	47.8 ± 32.0	.04	59.5 ± 29.5	0.3
Shortness of breath	Yes	41.0 ± 17.7	0.15	33.5 ± 17.2	.04	48.7 ± 23.4	0.3

Attacks of wheezing	No	47.6 ± 22.1	0.02	40.6 ± 23.7	0.06	56.0 ± 25.5	0.04
Attacks of wheezing	Yes	40.0 ± 17.1	0.02	32.6 ± 16.3	0.06	47.7 ± 23.0	0.04

Attacks of chest trouble during last year	No	44.7 ± 17.0	0.03	37.0 ± 17.6	0.04	53.7 ± 22.0	0.03
Attacks of chest trouble during last year	Yes	39.3 ± 18.5	0.03	32.1 ± 17.8	0.04	46.3 ± 24	0.03

Having a good day with few respiratory symptoms	No	39.2 ± 17.4	<0.001	32.5 ± 17.0	0.002	46.1 ± 22.6	<0.001
Having a good day with few respiratory symptoms	Yes	56.4 ± 17.0	<0.001	44.0 ± 20.7	0.002	70.0 ± 20.2	<0.001

Wheezing in the morning	No	41.7 ± 18.6	0.4	34.6 ± 18.3	0.2	49.5 ± 24.0	0.6
Wheezing in the morning	Yes	39.4 ± 16.4	0.4	31.1 ± 15.7	0.2	47.3 ± 22.7	0.6

COPD: chronic obstructive pulmonary disease; HRQoL: health-related quality of life; MCS: mental component summary; PCS: physical component summary. ^aIndependent samples t-test.