Table 1.
Sample demographics, clinical indices, and performance on the dot-probe task, by group and time-point of data collection
| Age 10a | Age 13b | Total | ||||
|---|---|---|---|---|---|---|
| Low BI n = 28 | High BI n = 33 | Low BI n = 29 | High BI n = 35 | Low BI n = 39 | High BI n = 48 | |
| Demographics | ||||||
| Sex (% female) | 57.1% | 60.6% | 59.3% | 56.8% | 58.2% | 58.6% |
| Age (years) | 10.42 (0.40) | 10.58 (0.45) | 13.09 (0.68) | 13.00 (0.64) | 11.72 (1.47) | 11.93 (1.42) |
| IQ | 114.40 (12.57) | 115.85 (12.40) | 115.26 (13.76) | 117.81 (13.35) | 114.82 (13.05) | 116.89 (12.86) |
| Clinical indices | ||||||
| BI scores | −0.59 (0.42) | 0.55 (0.49) | −0.56 (0.48) | 0.49 (0.46) | −0.58 (0.45) | 0.52 (0.47) |
| SCARED | 18.29 (9.39) | 14.67 (7.80) | 11.24 (7.68) | 10.32 (6.72) | 14.83 (9.22) | 12.37 (7.52) |
| Current anxiety dx (n) | 1 | 3 | 5 | 4 | 6 | 7 |
| Dot-probe performance | ||||||
| Threat bias (ms) | 0.38 (30.31) | 6.54 (31.18) | 9.47 (21.94) | 12.00 (37.83) | 4.85 (27.85) | 9.42 (34.02) |
| Happy bias (ms) | 9.50 (30.74) | −0.25 (30.74) | −1.45 (26.17) | 7.73 (36.00) | 4.13 (29.87) | 3.97 (32.62) |
| ABV threat | 0.047 (0.020) | 0.048 (0.021) | 0.046 (0.016) | 0.048 (0.019) | 0.046 (0.018) | 0.048 (0.020) |
| ABV happy | 0.041 (0.015) | 0.050 (0.014) | 0.052 (0.021) | 0.048 (0.020) | 0.046 (0.019) | 0.049 (0.017) |
BI, behavioral inhibition; SCARED, Screen for Childhood Anxiety Related Emotional Disorders (total scores); dx, diagnosis; ABV, attention bias variability.
At age 10 and 13, BI scores significantly differed between the low- and high-BI groups, whereas the other factors did not (see text).
a
n = 23 provided data only at age 10.
b
n = 26 provided data only at age 13.