Table 1.
Demographic characteristics of DS, NDS, and HC.
| Variable | DS | NDS | HCs | χ2/t/F |
|---|---|---|---|---|
| (n = 58) | (n = 93) | (n = 113) | (p-value) | |
| Age (years) | 51.50 ± 9.99 | 51.34 ± 8.84 | 50.81 ± 7.77 | 0.16 (0.856) |
| Education (years) | 8.05 ± 2.78* | 8.86 ± 2.62* | 10.63 ± 2.48 | 22.30 (<0.001) |
| Duration of illness (years) | 28.74 ± 8.42 | 27.77 ± 9.24 | 0.41 (0.523) | |
| Age of onset (years) | 22.72 ± 3.42 | 23.64 ± 5.02 | 1.49 (0.224) | |
| Smoker/Non-smoker | 26/32 | 32/61 | 47/66 | 1.89 (0.388)a |
| Dose of Antipsychotic, mg/d (chlorpromazine equivalent) | 470.00 ± 263.17 | 503.28 ± 257.38 | 0.77 (0.445) |
Data is presented as mean ± standard deviation. Bonferroni correction was used for post-hoc comparisons.
a
The P-value was obtained by using a chi-square test.
*
Indicates the comparison between patients and HC.
*
p < 0.05.