Table 1.
Descriptives
| Variables | Frequencies (%)/mean (SD) | ||
|---|---|---|---|
| Total sample (N = 1818–1840) |
Males (N = 896–909) |
Females (N = 922–931) |
|
| Depressiona | 344 (19 %) | 111 (12 %) | 233 (25 %) |
| Anhedoniab | 618 (35 %) | 306 (35 %) | 312 (34 %) |
| Sadnessc | 765 (42 %) | 318 (36 %) | 447 (49 %) |
| RT Baselined | 334 (49) | 332 (46) | 336 (52) |
| RT Happyd | 878 (206) | 883 (213) | 874 (199) |
| RT Sadd | 1210 (287) | 1229 (299) | 1191 (274) |
| RT Angryd | 1117 (259) | 1125 (271) | 1108 (245) |
| RT Fearfuld | 1112 (277) | 1119 (282) | 1105 (272) |
| EP Happye | 3.3 (3.3) | 3.5 (3.4) | 3.1 (3.3) |
| EP Sade | 12.6 (9.2) | 13.4 (9.4) | 11.9 (9.0) |
| EP Angrye | 8.4 (6.1) | 8.6 (5.9) | 8.1 (6.3) |
| EP Fearfule | 7.5 (6.6) | 7.9 (6.8) | 7.2 (6.4) |
aCIDI-based DSM-IV diagnosis of major depressive disorder, minor depressive disorder or dysthymia, with age of onset between 11 and 19
bSymptoms of anhedonia for at least several consecutive days between age 11 and 19
cSymptoms of sadness for at least several consecutive days between age 11 and 19
d RT mean reaction time for correct responses measured in milliseconds, assessed at age 11
e EP mean error proportion, assessed at age 11