From: Derivation of normative data for the COPD assessment test (CAT)
Males | Females | Overall | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Age group | 40-49 years | 50-59 years | 60-69 years | 70-79 years | 80 years and above | All ages | 40-49 years | 50-59 years | 60-69 years | 70-79 years | 80 years and above | All ages | All ages |
Number of subjects (%) | 12 (2) | 43 (9) | 85 (17) | 82 (16) | 18 (4) | 240 (48) | 14 (3) | 49 (10) | 99 (20) | 78 (16) | 20 (4) | 260 (52) | 500 |
Minimum score | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
5th percentile | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1.5 | 0.5 | 0 |
10th percentile | 2 | 2 | 1 | 1 | 3 | 1 | 1 | 2 | 1 | 1 | 2 | 1 | 1 |
25th percentile | 2 | 3 | 2 | 2 | 4 | 3 | 3 | 2 | 2 | 3 | 3 | 2 | 2 |
50th percentile | 5 | 5 | 4 | 5 | 6.5 | 4 | 5 | 6 | 5 | 5 | 4 | 5 | 5 |
75th percentile | 9 | 6 | 7 | 8 | 10 | 8 | 8 | 10 | 8 | 9 | 11 | 9 | 8 |
90th percentile | 12 | 10 | 10 | 14 | 12 | 12 | 9 | 17 | 12 | 13 | 21 | 13 | 12 |
95th percentile | 20 | 13 | 12 | 15 | 14 | 15 | 10 | 19 | 21 | 16 | 30 | 18 | 16 |
Maximum score | 20 | 25 | 20 | 19 | 14 | 25 | 10 | 26 | 27 | 21 | 36 | 36 | 36 |
Mean score | 6.58 | 5.47 | 4.96 | 5.72 | 6.72 | 5.53 | 5.00 | 7.16 | 6.04 | 6.23 | 8.35 | 6.43 | 6 |
Standard Deviation, SD | 5.48 | 4.39 | 4.18 | 4.78 | 3.49 | 4.45 | 2.96 | 5.76 | 5.58 | 4.69 | 8.85 | 5.59 | 5.09 |
Percentage of subjects at floora | 0 | 0 | 8.2 | 7.3 | 5.5 | 5.4 | 7 | 2 | 8 | 3.8 | 5 | 5 | 5.2 |
Percentage of subjects at ceilingb | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |