Table I.
Comparison of the various component scores and total scores of the St. George’s Respiratory Questionnaire for chronic obstructive pulmonary disease (COPD) with gender, age and COPD grade
Parameter | n | Symptom component score | Activity component score | Impact component score | Total score |
---|---|---|---|---|---|
Gender | |||||
Male | 86 | 58.6±21.4 | 49.4±17.9 | 43.4±18.9 | 47.9±16.7 |
Female | 14 | 56.6±25.0 | 59.7±20.6 | 46.6±22.0 | 52.4±19.8 |
P | - | <0.752 | <0.053 | <0.567 | <0.364 |
Age (yr) | |||||
45-55 | 5 | 42.1±10.5 | 46.8±18.7 | 35.1±12.5 | 39.9±10.7 |
56-65 | 13 | 48.7±15.1 | 36.1±16.5 | 24.6±11.0 | 32.4±10.9 |
66-75 | 59 | 56.0±21.3 | 48.5±16.0 | 42.7±17.2b | 46.9±14.7b |
≥76 | 23 | 73.3±20.6a,b,c | 66.0±16.5b,c | 59.3±17.4a,b,c | 63.8±15.6a,b,c |
P | - | <0.001 | <0.001 | <0.001 | <0.001 |
COPD grade | |||||
1 | 20 | 41.6±15.1 | 41.3±12.9 | 28.9±12.4 | 34.9±8.0 |
2 | 40 | 51.9±16.5 | 45.4±16.1 | 36.4±14.2 | 41.9±12.1 |
3 | 21 | 65.3±20.1x,y | 53.6±19.3 | 52.5±16.9x,y | 55.1±15.6x,y |
4 | 19 | 81.9±16.8x,y,z | 69.3±14.7x,y,z | 65.5±12.9x,y,z | 69.6±11.8x,y,z |
P | - | <0.001 | <0.001 | <0.001 | <0.001 |
Total | 100 | 58.4±21.8 | 50.8±18.6 | 43.8±19.2 | 48.5±17.1 |
P | - | <0.001 | <0.001 | <0.001 | <0.001 |
Values are expressed as mean±SD. asignificant difference from age 45-55; bsignificant difference from age 56-65; csignificant difference from age 66-75; xsignificant difference from grade 1; ysignificant difference from grade 2; zsignificant difference from grade 3