Table 1 Patient characteristics
From: Serum p53 antibody detection in patients with impaired lung function
| Â | NORMAL LFT* | IMPAIRED LFT |
|---|---|---|
| Â | 399 | 276 |
Age | Â | Â |
Median (range), years | 56 (26–93) | 62 (24–83) |
Gender | Â | Â |
Male | 214 (54%) | 169 (61%) |
Female | 185 (46%) | 107 (39%) |
Smoking habit | Â | Â |
Non-smokers | 42 (11%) | 44 (16%) |
Current smokers | 269 (67%) | 152 (55%) |
Ex-smokers | 88 (22%) | 80 (29%) |
No. of cigarettes smoked per day | Â | Â |
≤ 20 | 241 (60%) | 129 (47%) |
> 20 | 114 (29%) | 102 (37%) |
Missing | 2 | 1 |
Packs-year | Â | Â |
≤ 40 | 239 (60%) | 117 (42%) |
> 40 | 116 (29%) | 113 (41%) |
Missing | 2 | 2 |
Years since quitting | Â | Â |
≤ 10 | 35 (9%) | 37 (13%) |
>10 | 29 (7%) | 25 (9%) |
Missing | 24 | 18 |
LFT impairment (obstructive or restrictive) | Â | Â |
Mild | Â | 152 (55%) |
Moderate | Â | 73 (26%) |
Severe | Â | 51 (18%) |