Table 3.
Differences in chronotype, anti-psychotic medication, hours slept, hours spent in bed, and rMEQ scores for personality disorder and no personality disorder groups.
| Personality disorder | No personality disorder | ||
|---|---|---|---|
| n= 22 | n= 33 | p | |
| ANOVA | |||
| Definite morning | 2 | 7 | 0.047 |
| Moderate morning | 4 | 7 | |
| Intermediate | 7 | 14 | |
| Moderate evening | 8 | 5 | |
| Definite evening | 1 | 0 | |
| t-Test | |||
| rMEQ score, M (SD) | 14.3 (5.4) | 16.4 (4.8) | 0.133 |
| MSFSC (time), M (SD) | 3:52 (1:13) | 3:34 (1:26) | 0.454 |
| Social jetlag (minutes), M (SD) | 32.3 (52.9) | 25.8 (48.0) | 0.595 |
| Bed time, M (SD) | 22:33 (1:24) | 21:50 (1:15) | 0.081 |
| Hours in bed, M (SD) | 9.0 (2.1) | 10.2 (1.8) | 0.040 |
| Hours slept, M (SD) | 7.2 (2.5) | 8.7 (1.6) | 0.015 |
| Anti-psychotic dose (CPZ equiv.), M (SD) | 399 (422) | 743 (568) | 0.019 |
rMEQ, reduced Morningness–Eveningness Questionnaire; low rMEQ scores indicate preference eveningness and high scores indicate preference for morningness; ANOVA, analysis of variance; MSFSC, Mid-sleep on free days corrected for sleep debt on work days; CPZ equiv., daily scheduled intake of anti-psychotic medication in chlorpromazine equivalents.