Table 2.
The Relationship Between the Presence of Ultra-Short Telomeres and Age, Smoking History, and COPD Grading
| BAL + (n=26) | BAL – (n=6) | p | Leu + (n=3) | Leu – (n=29) | p | |
|---|---|---|---|---|---|---|
| Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | |||
| Age (years) | 62.6 7.8 | 48.8 14.2 | 0.014* | 71.7 1.2 | 58.8 10.3 | NaN |
| n (%) | n (%) | n (%) | n (%) | |||
| Smoking History Ever Smoker Never Smoker |
18 (81.2) 8 (80) |
4(11.8) 2 (20) |
1.00** |
3 (13.6) 0 (0.0) |
19 (86.4) 10 (100.0) |
0.534** |
| COPD Grade Grade 1–2 Grade 3–4 |
9 (60.0) 17 (100.0) |
6 (40.0) 0 (0.0) |
0.006 ** |
1 (6.7) 2 (11.8) |
14 (93.3) 15 (88.2) |
1.00** |
Notes: *Results were obtained with the Mann–Whitney U-test; **Results were obtained with Fisher Exact test; NaN, No statistics were calculated due to inadequate sample size in one Leu (+) group (n=3); Bold indicates statistically significant values.
Abbreviations: BAL+, presence of ultra-short telomeres in BAL samples; BAL-, absence of ultra-short telomeres in Bal samples; Leu+, presence of ultra-short telomeres in leukocyte samples; Leu-, absence of ultra-short telomeres in leukocyte samples.