Table 2.
Case–control comparison of telomere features, stratified by age, gender and smoking status
| Telomere features | Cases mean (SD) | Controls mean (SD) | P |
|---|---|---|---|
| All subjects, N | 224 | 253 | |
| Avg_TLa | 2210 (502) | 1931 (643) | <0.001 |
| TLVb | 59.9 (5.0) | 57.1 (4.0) | <0.001 |
| Age ≤ 60, N | 113 | 128 | |
| Avg_TL | 2305 (504) | 1966 (699) | <0.001 |
| TLV | 59.28 (4.5) | 56.66 (4.0) | <0.001 |
| Age > 60, N | 111 | 125 | |
| Avg_TL | 2113 (483) | 1896 (581) | 0.002 |
| TLV | 60.55 (5.4) | 57.63 (3.9) | <0.001 |
| Male, N | 194 | 218 | |
| Avg_TL | 2197 (480) | 1903 (618) | <0.001 |
| TLV | 59.88 (5.0) | 57.12 (3.9) | <0.001 |
| Female, N | 30 | 35 | |
| Avg_TL | 2290 (631) | 2109 (770) | 0.307 |
| TLV | 60.13 (5.1) | 57.25 (4.2) | 0.016 |
| Never smokers, N | 65 | 141 | |
| Avg_TL | 2213 (555) | 1953 (684) | 0.008 |
| TLV | 59.46 (5.3) | 56.82 (3.8) | <0.001 |
| Former smokers, N | 61 | 66 | |
| Avg_TL | 2150 (560) | 1780 (489) | <0.001 |
| TLV | 60.45 (5.0) | 58.24 (4.4) | 0.009 |
| Current smokers, N | 98 | 46 | |
| Avg_TL | 2245 (423) | 2081 (677) | 0.136 |
| TLV | 59.87 (4.9) | 56.54 (3.7) | <0.001 |
aAverage telomere length; btelomere length variation.