Table 6.

Mean RCAD and CAQ-C scores

	Cardiac arrhythmia syndrome	Family history	Control	ANOVA P values
RCAD total anxiety score
N	38	64	63
Mean (SD)	24.76 (15.24)	23. 22 (11.22)	28.76 (15.38)
Minimum/maximum (range)	2/54(52)	7/53(46)	3/68(65)
CAQ-C total cardiac-focused anxiety
N	41	78	70
Mean (SD)	1.24 (0.62) *†	0.93 (0.49)	0.92 (0.51)
Minimum/maximum (range)	0.39/2.83 (2.44)	0.22/2.39 (2.14)	0.06/2.28 (2.22)	0.003
CAQ-C Fear
N	41	76	70
Mean (SD)	1.42 (0.63) *†	1.04 (0.51)	1.07 (0.66)
Minimum/maximum (range)	0/3 (3)	0.13/2.50 (2.37)	0.00/2.63 (2.63)	0.002
CAQ-C Avoidance
N	41	78	70
Mean (SD)	1.12 (1.04)*	0.74 (0.75)	0.77 (0.72)
Minimum/maximum (range)	0.00/3.60 (3.6)	0.00/3.00(3)	0.00/2.40 (2.4)	0.04
CAQ-C Attention
N	40	77	69
Mean (SD)	1.03 (0.56)	0.82 (0.54)	0.79 (0.54)
Minimum/maximum (range)	0.20/2.20 (2)	0.00/2.60 (2.60)	0.00/2.20(2)	0.07

Note: different N values are due to different patterns of missing data and different number of outliers across the RCADS and CAQ-C.

Associations between SCD in the immediate family and levels of anxiety.

*Pairwise post hoc t-tests indicate significant differences between children with an inherited cardiac arrhythmia syndrome and children being screened due to a family history of an inherited cardiac arrhythmia syndrome (p<0.05).

†Pairwise post hoc t-tests indicate significant differences between children with an inherited cardiac arrhythmia syndrome and control children (p<0.05).

CAQ-C, Cardiac Anxiety Questionnaire for Children; RCADS, Revised Children’s Anxiety and Depression Scale; SCD, sudden cardiac death.