Characteristics of patients stratified by sex

Participants n3239
Dementia type n
Age years76.47±8.2780.24±5.620.02
BMI kg·m−222.10±3.2021.31±3.240.34
Brinkman Index413.40±430.7813.57±44.28<0.01
MMSE score23.19±6.1920.81±5.450.06
FEV1 % predicted105.71±27.30114.57±30.950.19
FVC % predicted91.36±18.9391.66±24.460.68
FEV1/FVC %75.56±10.8080.21±13.240.04
FEV1/FVC % predicted118.91±15.86112.50±18.580.1
PaO2 mmHg86.94±13.7487.72±7.950.39
PaCO2 mmHg39.10±3.9039.86±3.400.58
HCO3 mmol·L−124.48±2.7624.97±2.200.34

Data are presented as mean±sd unless otherwise stated and were analysed using the Mann–Whitney test. p-Values in bold express significant difference (p<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.