Research Article
Parkinson’s Disease and Homocysteine: A Community-Based Study in a Folate and Vitamin B12 Deficient Population
Table 3
General characteristics of cases and controls.
| | Variables | (%) or medians (25th–75th percentile) | value | | Cases | Control |
| | Age, years | 72.0 (62–80) | 72.0 (62–78) | 0.989 | | Sex (%) | | | | | Male | 11 (64.7) | 55 (64.7) | 1 | | Female | 6 (35.3) | 30 (35.3) | | | Town | | | | | Kangcheng | 4 (23.5) | 32 (37.6) | 0.330 | | Gaojiagou | 5 (29.4) | 28 (32.9) | | | Caijiaya | 8 (47.1) | 25 (29.4) | | | Serum tHcy, μmmol/L | 27.45 (19.70–32.81) | 20.71 (14.50–31.50) | 0.341 | | ≤22.175 | 5 (29.4) | 46 (54.1) | 0.063 | | >22.175 | 12 (70.6) | 39 (45.9) | | | Serum folate, nmol/L | 6.92 (4.83–11.13) | 7.50 (5.55–13.49) | 0.396 | | ≤7.375 | 10 (58.8) | 41 (48.2) | 0.425 | | >7.375 | 7 (41.2) | 44 (51.8) | | | Serum vitamin B12, pmol/L | 132.45 (95.06–198.84) | 149.64 (89.79–195.94) | 0.696 | | ≤147.295 | 10 (58.8) | 41 (48.2) | 0.425 | | >147.295 | 7 (41.2) | 44 (51.8) | | | Current smoking (%) | | | | | Yes | 10 (58.8) | 74 (87.1) | 0.005 | | No | 7 (41.2) | 11 (12.9) | | | Current alcohol drinking (%) | | | | | Yes | 0 (0) | 14 (16.5) | 0.119 | | No | 17 (100) | 71 (83.5) | | | Tea drinking (%) | | | | | Yes | 0 (0) | 6 (7.1) | 0.586 | | No | 17 (100) | 79 (92.9) | | | Pesticide exposure (%) | | | | | Yes | 0 (0) | 6 (7.1) | 0.586 | | No | 17 (100) | 79 (92.9) | |
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