TABLE 3.
Patients characteristics in the three study groups
| Characteristic | Control | AD | DLB | p-value | p1-value |
| Patients n | 22 | 30 | 19 | ||
| Sex (M/F) n/n | 14/8 | 9/21 | 9/10 | ||
| Age years | 76.64±6.37 | 80.40±6.43 | 77.67±8.70 | 0.146 | 0.257 |
| BMI kg·m−2 | 22.08±3.53 | 21.62±2.92 | 21.26±3.45 | 0.732 | 0.852 |
| Brinkman Index | 340.12±462.08 | 110.19±221.91 | 146.63±323.86 | 0.063 | 0.349 |
| MMSE score | 27.82±2.24 | 19.69±4.50 | 19.25±6.25 | <0.001 | <0.001 |
| FEV1 % predicted | 109.66±19.91 | 119.33±33.03 | 95.48±29.62 | 0.039 | 0.117 |
| FVC % predicted | 91.65±22.25 | 98.18±19.93 | 79.33±20.66 | 0.025 | 0.064 |
| FEV1/FVC % | 80.91±10.66 | 75.86±12.10 | 77.72±14.65 | 0.363 | 0.095 |
| FEV1/FVC % predicted | 121.37±12.89 | 110.70±17.15 | 115.56±22.07 | 0.104 | 0.151 |
| pH | 7.41±0.02 | 7.41±0.02 | 7.42±0.03 | 0.193 | 0.076 |
| PaO2 mmHg | 89.06±10.12 | 85.81±11.59 | 88.30±10.46 | 0.567 | 0.514 |
| PaCO2 mmHg | 39.57±4.18 | 39.29±3.90 | 39.89±2.02 | 0.879 | 0.683 |
| HCO3− mmol·L−1 | 24.44±1.62 | 24.56±2.87 | 25.58±2.39 | 0.389 | 0.353 |
Data are presented as mean±sd unless otherwise stated and were analysed using one-way ANOVA (p-values) or using two-way ANOVA when adjusting for gender (p1-values). Values are in bold show where significant differences were expressed (p<0.05 or p1<0.05). AD: Alzheimer's disease; DLB: dementia with Lewy bodies; BMI: body mass index; MMSE: mini mental state examination; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; PaO2: arterial oxygen tension; PaCO2: arterial carbon dioxide tension.