Table 2 Risk Factors Associated with Serum sCD14 Concentration
From: Interaction of CD14 haplotypes and soluble CD14 on pulmonary function in agricultural workers
|  | sCD14 ≤ median (n = 292) N (%) | sCD14 > median (n = 292) N (%) | p-value |
|---|---|---|---|
Age, years | |||
 39-50 | 22 (8%) | 16 (5%) | 0.0057 |
 51-60 | 70 (24%) | 47 (16%) |  |
 61-70 | 139 (48%) | 135 (46%) |  |
 71-80 | 61 (21%) | 94 (32%) |  |
Sex | |||
 Male | 283 (97%) | 288 (99%) | 0.16 |
 Female | 9 (3%) | 4 (1%) |  |
BMI | |||
  < 25 | 34 (12%) | 52 (18%) | 0.01 |
 25-29.9 | 77 (26%) | 94 (32%) |  |
  ≥ 30 | 181 (62%) | 146 (50%) |  |
Race | |||
 White | 275 (95%) | 280 (97%) | 0.29 |
 Other | 14 (5%) | 9 (3%) |  |
Education | |||
  ≤ High School | 118 (42%) | 132 (48%) | 0.15 |
  > High School | 166 (58%) | 145 (52%) |  |
Smoking Status | |||
 Ever | 225 (78%) | 238 (83%) | 0.13 |
 Never | 64 (22%) | 49 (17%) |  |
COPD | |||
 No | 181 (62%) | 173 (59%) | 0.50 |
 Yes | 111 (38%) | 119 (41%) |  |
Steroid Use (Inhaled, Oral)a | |||
 No | 260 (89%) | 247 (85%) | 0.11 |
 Yes | 32 (11%) | 45 (15%) |  |
FEV1/FVC (mean ± SD) | 70.9 ± 10.1 | 68.4 ± 13.0 | 0.011 |
FEV1 (%) (mean ± SD) | 81.8 ± 19.4 | 78.0 ± 22.6 | 0.030 |
Worked on a Farm, years | |||
  < 10 | 48 (17%) | 45 (16%) | 0.23 |
 10-19.9 | 81 (28%) | 77 (27%) |  |
 20-29.9 | 54 (19%) | 38 (13%) | |
 30+ | 105 (36%) | 123 (43%) |  |
Exposure to crops | |||
 No | 31 (11%) | 39 (14%) | 0.26 |
 Yes | 257 (89%) | 242 (86%) |  |
Exposure to animals | |||
 No | 25 (9%) | 38 (14%) | 0.06 |
 Yes | 263 (91%) | 243 (86%) |  |