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Is underweightness still a major problem in Parkinson's disease patients?
M Barichella1, A Marczewska, A Vairo
1Parkinson Institute, Istituti Clinici di Perfezionamento, Milan, Italy.
Objective:
To evaluate the current rate of underweightness amongst Parkinson's disease (PD) patients at an Italian referral centre.
Design:
Epidemiological study on consecutive patients presenting for the first time in a 16-month period.
Setting:
Nutritional service of PD referral centre in Milan, Italy.
Subjects:
Three-hundred and sixty-four PD patients diagnosed according to CAPIT criteria.
Methods:
Anthropometric assessments: BMI and waist-to-hip ratio; evaluation of therapeutic physical activity (h/week).
Results:
Three-hundred and sixty-four patients were included (180 female, 184 male), mean (s.d.) age 65.9 (8.9) y, mean (s.d.) duration of PD 10.6 (5.3) y; 134 patients (37%) were overweight and 92 (25%) were obese; 11 (3%) were underweight; 127 (35%) had normal BMI. No important differences in BMI according to sex and smoking status were observed. There was highly significant inverse correlation between duration of disease and BMI (P<0.001): mean (s.d.) duration of disease was 9.7 (4.7) y in overweight+obese patients, 11.1 (5.5) y in patients with normal BMI and 14.1 (7.2) y in underweight patients (P=0.0059). The waist-to-hip ratio was a cardiovascular risk factor in 47.7% of men and 73.8% of women. Mean (s.d.) therapeutic physical activity was 1.07 (1.59) h/week in overweight and obese patients vs 1.61 (2.04) h/week in patients with normal BMI (50.5% increase; P=0.03).
Conclusions:
At present underweightness is uncommon in PD patients in Italy; this may be due to the increase in the prevalence of overweightness in the Italian population and to modern antiparkinsonian therapy.