Table 4

Demographic, diagnostic and threat measure variables across children with anxious problems (n = 25) and without (n = 92) subjects
Anxiety diagnosis Control subjects with no anxiety problems Change in model-fit Δχ2(Δdf) Effect sizes Cohen’s d
Demographics
Mean age 10 years 0 mo. 10 years 1 mo.
% females 56% 47%
Mean SES 0.26 (0.76) 0.35 (0.61)
% Caucasian 91% 98%
Measures of threat processing
Recognition of threat (mean no. correct, SD)
Angry faces 18.63 (3.73) 17.72 (5.89) Δχ 2 (1) = 0.51, p = n.s.
Fear faces 21.29 (6.88) 20.75 (7.15) Δχ 2 (1) = 0.10, p = n.s.
Sad faces 16.08 (5.15) 16.47 (5.90) Δχ 2 (1) = 0.09, p = n.s.
Disgust faces 19.88 (5.11) 16.43 (6.44) Δχ 2(1) = 6.52, 0.59
p < 0.05
Avoidance of threat 104.88 90.51 0.41
(mean no. of avoidant responses, SD) (33.41) (36.40) Δχ 2(1) = 6.89, p < 0.01
Block 1
Block 2 18.08 17.14 (3.87) Δχ 2(1) = 0.56, p = n.s.
Block 3 (4.90) 17.53 (6.66) Δχ 2(1) = 1.71, p = n.s.
Block 4 20.00 18.32 Δχ 2(1) = 3.56, p = n.s. 0.39
Block 5 (6.25) (.93) Δχ 2(1) = 5.42, p < 0.01 0.33
20.56 (8.38) 18.40 Δχ 2(1) = 6.02, p < 0.05
23.36 (9.42) (10.90)
22.88 19.11
(10.74) (11.80)

The recognition of threat measures corresponds to the mean number and standard deviation of correct responses across 32 trials for each face emotion across groups; the avoidance of threat measure corresponds to the mean number and standard deviation of avoidant responses across the 160 trials of the whole task, and across each 32 trials in each Block at Block 2; p = n.s. at Block 3; at Block 4; and at Block 5.

Lau et al.

Lau et al. Biology of Mood & Anxiety Disorders 2012 2:12   doi:10.1186/2045-5380-2-12

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