Table 5.

Change in catching cold after onset of PD. (Survey response: a-1; Never caught cold. a-2; Sometimes caught cold but never had high fever or required bed rest. a-3; Sometimes had high fever and required bed rest. b-1; Stopped catching colds. b-2; Sometimes caught cold but never had high fever or required bed rest. b-3; Sometimes had high fever and required bed rest.)

Survey response	PD group	Normal controls	CVD control
a-1 to b-1	21(15.1%)	11(16.4%)	8(21.6%)
a-2 to b-2	71(51.1%)	34(50.7%)	18(48.6%)
a-3 to b-3	2(1.4%)	18(26.9%)	8(21.6%)
a-2 to b-1	22(15.8%)	0	0
a-3 to b-1	10(7.2%)	3(4.5%)	0
a-3 to b-2	11(7.9%)	0	1(2.7%)
a-2 to b-3	2(3.6%)	1(1.5%)	2(5.4%)
Total No. of persons	139(100%)	67(100%)	37(100%)