Table 1.

Characteristics of Parkinson’s and non-Parkinson’s participants at baseline (n = 1654).

Variables	Parkinson’s		Non-Parkinson’s		χ2	p
	n	%	n	%
Gender					61.61	<0.001
Female	483	47.73	434	67.60
Male	529	52.27	208	32.40
Education					3.27	0.195
Up to 16 years old	166	16.40	87	13.55
Up to 18 years old	109	10.77	64	9.97
University/College/Equivalent	737	72.83	491	76.48
Do you smoke tobacco?					1.36	0.714
No, never	638	63.04	392	61.06
No, but used to	330	32.61	218	33.96
Yes, occasionally/weekly	21	2.08	13	2.02
Yes, daily	23	2.27	19	2.96
How often do you have a drink containing alcohol?					1.36	0.714
No, never	155	15.32	65	10.12
Monthly or less	185	18.28	101	15.73
2–4 times per month	197	19.47	136	21.18
2–3 times per week	248	24.50	184	28.66
4 or more times per week	227	22.43	156	24.31
Do you have other long-term health conditions?					3.35	0.067
No	578	57.11	335	52.18
Yes	434	42.89	307	47.82
Do you live alone?					0.68	0.411
No	876	86.56	547	85.20
Yes	136	13.44	95	14.80