Table 1.
Demographical information and mean scores on the questionnaires for the total group and separate for participants scoring low and high on apathy.
| Variables | Possible Range1 | Total group | Total group | Total group | Low apathy | Low apathy | High apathy | High apathy |
|---|---|---|---|---|---|---|---|---|
| Mean (SD) (N = 39) | Min/Max | τ with AES-S2 | Mean (SD) (N = 20) | Min/Max | Mean (SD) (N = 19) | Min/Max | ||
| Age | — | 22.69 (2.27) | 18/27 | — | 22.75 (2.15) | 19/27 | 22.63 (2.45) | 18/26 |
| Sex (M/F) | — | — | 13/26 | — | — | 5/15 | — | 8/11 |
| Education3 | — | 17.36 (1.89) | 14/24 | — | 17.55 (2.16) | 14/24 | 17.16 (1.57) | 14/20 |
| AES-S× | 18/72 | 33.41 (5.33) | 25/44 | — | 29.05 (1.79) | 25/31 | 38 (3.64) | 32/44 |
| LARS-AI× | −1 | −2.68 (1.26) | −2.6667 | 0.53** | −3.3 (0.86) | 4 | −2.03 (1.31) | −2.6667 |
| BDI× | 0/63 | 6.21 (6.35) | 0/27 | 0.53** | 2.55 (3.27) | 0/12 | 10.05 (6.6) | 0/27 |
| BDI-factor× | 0/33 | 3.28 (4.23) | 0/19 | 0.51** | 1 (1.75) | 0/6 | 5.68 (4.76) | 0/19 |
| TEPS-ANT× | 10/60 | 43.26 (6.92) | 25/55 | −0.43** | 46.8 (5.24) | 33/55 | 39.53 (6.59) | 25/55 |
| TEPS-CON× | 8/48 | 38.69 (5.11) | 26/47 | −0.32* | 40.7 (4.85) | 31/47 | 36.58 (4.59) | 26/47 |
| SHAPS× | 0/14 | 1.08 (2.6) | 0/14 | 0.33** | 0.9 (3.16) | 0/14 | 1.26 (1.91) | 0/7 |
| SPQ-pos× | 0/46 | 7.87 (5.96) | 0/23 | 0.35** | 5.35 (4.34) | 0/14 | 10.53 (6.36) | 23-Feb |
| SPQ-neg× | 0/43 | 8.05 (5.86) | 0/22 | 0.58** | 4.4 (3.35) | 0/11 | 11.89 (5.56) | 22-Feb |
| PANAS-pos× | 10/50 | 32.41 (7.6) | 15/46 | −0.38** | 35.85 (5.31) | 26/46 | 28.79 (8.07) | 15/44 |
| PANAS-neg× | 10/50 | 14.21 (3.68) | 10/25 | 0.18 | 12.7 (2.58) | 10/18 | 15.79 (4.05) | 10/25 |
| SCL-90× | 90/450 | 121.49 (24.76) | 92/179 | 0.46** | 108.25 (14.81) | 95/157 | 135.42 (25.74) | 92/179 |
*p < 0.05 is statistically significant. ** Significant after Bonferroni correction, p < 0.005.
×Significant different means for low and high apathy groups, t-test, p < 0.05.
AES-S = Apathy Evaluation Scale, Self-rated; BDI = Beck Depression Inventory; PANAS = Positive and Negative Schedule; LARS_AI = Lilly Apathy Rating Scale, Action Initiation subscale; SCL-90 = Symptom Checklist; SHAPS = Snaith-Hamilton Pleasure Scale; SPQ = Schizotypal Personality Questionnaire; TEPS = Temporal Experience of Pleasure Scale; TEPS-ANT = Anticipatory pleasure subscale of the TEPS; TEPS-CON = Consummatory subscale of the TEPS.
1A higher number indicates higher severity, except for PANAS-pos and TEPS.
2Correlations between apathy scores and other factors are calculated with a Kendall’s Tau test (τ).
3Years including primary school.