Mean (SE) values of reduction in BPb and FEP between 2000 and 2003 stratified by smoking and hygienic behaviour groups
| Hygienic behaviour | Subtraction 2003 data from 2000 data | |||
|---|---|---|---|---|
| n | BPb* (μg/dl) | FEP (μg/dl RBC) | ||
| *Two way analysis of variance (ANOVA) showed a significant difference between smokers and ex- or never smokers (p = 0.0084), but no significant variation between A (hygienic excellent group) and C (poor group) (p > 0.05). | ||||
| Ex- or never smokers | Group A | 20 | 11.3 (2.1) | 156 (39) |
| Group C | 7 | 8.9 (2.9) | 75 (28) | |
| Smokers | Group A | 30 | 5.1 (1.4) | 73 (16) |
| Group C | 15 | 5.1 (1.9) | 38 (11) | |