Table 2.
Correlates of Blood Harmane Concentration, BPb Concentration, and Tremor Severity
| Blood Harmane Concentration | BPb Concentration | Total Tremor Score | |
|---|---|---|---|
| Age (years)a | r = 0.14, p = 0.025 | r = 0.13, p = 0.04 | r = 0.24, p <0.001 |
| Genderb | |||
| Men | 0.20 ± 0.85 (0.02) | 3.29 ± 1.61 (3.0) | 11.4 ± 9.0 (8.0) |
| Women | 0.15 ± 0.65 (0.02) | 2.57 ± 1.89 (2.1) | 10.1 ± 10.2 (5.0) |
| p = 0.96 | p <0.001 | p = 0.03 | |
| White Raceb | |||
| Yes | 0.09 ± 0.21 (0.02) | 2.96 ± 1.43 (2.7) | 6.6 ± 6.3 (5.0) |
| No | 0.18 ± 0.79 (0.02) | 2.84 ± 1.83 (2.4) | 11.1 ± 9.9 (7.0) |
| p = 0.53 | p = 0.35 | p = 0.07 | |
| Years of Educationa | r = −0.06, p = 0.32 | r = −0.007, p = 0.91 | r = −0.08, p = 0.19 |
| Number of Rooms in Homea | r = 0.02, p = 0.76 | r = 0.06, p = 0.36 | r = −0.01, p = 0.90 |
| Current smokerb | |||
| Yes | 0.18 ± 0.79 (0.02) | 2.82 ± 1.81 (2.46) | 10.6 ± 9.8 (6.0) |
| No | 0.06 ± 0.11 (0.02) | 3.15 ± 1.65 (2.59) | 11.4 ± 9.1 (7.5) |
| p = 0.49 | p = 0.17 | p = 0.35 | |
| Cigarette Pack-Yearsa | r = −0.09, p = 0.13 | r = −0.06, p = 0.33 | r = −0.13, p = 0.04 |
| Cumulative Illness Rating Scale scorea | r = 0.005, p = 0.93 | r = −0.097, p = 0.12 | r = 0.058, p = 0.36 |
| Daily alcohol consumption (grams) | r = −0.08, p = 0.23 | r = 0.22, p = 0.001 | r = 0.005, p = 0.94 |
| Daily caloric consumption (kilocalories) | r = 0.10, p = 0.11 | r = 0.02, p = 0.71 | r = −0.01, p = 0.86 |
| Daily animal protein consumption (grams) | r = 0.13, p = 0.045 | r = −0.04, p = 0.58 | r = −0.02, p = 0.79 |
a
Spearman’s rho was used for statistical comparisons.
b
Values are mean ± S.D. (median). Mann Whitney U was used for statistical comparisons.