Demographics of the study groups
| HC (n=27) | DS+NDS (n=43) | DS (n=17) | NDS (n=26) | Comparison of groups | Test statistics Mann-Whitney U test/χ2 | P value | |
| Age (years) | 29 (24–68) | 39 (22–67) | 39 (22–67) | 38.5 (22–66) | HC-SZ | 431.0* | 0.071 |
| HC-DS | 153.5* | 0.066 | |||||
| HC-NDS | 277.5* | 0.190 | |||||
| DS-NDS | 216.0* | 0.901 | |||||
| Gender (male) | 16 (59.26) | 27 (62.79) | 9 (52.94) | 18 (69.23) | HC-SZ | 0.002† | 0.966 |
| HC-DS | 0.010† | 0.921 | |||||
| HC-NDS | 0.221† | 0.638 | |||||
| DS-NDS | 0.574† | 0.449 |
Data are given as n (%) or median (minimum–maximum).
*Mann-Whitney U test statistics.
†χ2 test statistics.
DS, deficit syndrome; HC, healthy control; NDS, non-deficit syndrome; SZ, schizophrenia (DS+NDS).