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. 2013 Feb 11;2013:742128. doi: 10.1155/2013/742128

Table 2.

Demographic characteristics of the participants.

Parkinson's disease Healthy controls P value
(n = 102) (n = 49)
Gender, n (%)
 Female 58 (56.9) 25 (51.0) NS
 Male 44 (43.1) 24 (49.0)
Age, y, mean ± SD (range) 70.3 ± 8.3 (48–91) 70.7 ± 6.7 (59–85) NS
Bent forward flexion, n (%) 23 (22.5) 1 (0.02) <0.01
Heartburn, n (%) 21 (20.6) 4 (8.2) 0.04
FSSG
 Mean ± SD (range) 5.9 ± 7.2 (0–37) 1.4 ± 3.1 (0–14) <0.0001
 More than 8, n (%) 27 (26.5%) 4 (8.2%) <0.01

NS: no significance; FSSG: the frequency scale for symptoms of GERD (GERD: gastroesophageal reflux disease).