Table 3.

Average scores of the IEQ burden subscale

IEQ subscales	Mean, SD*	Possible range*	Actual range	Mean, SD**
Tension (9 items)	10.6, SD = 8.0	0–36	0–36	1.2, SD = 0.9
Supervision (6 items)	7.5, SD = 5.4	0–24	0–24	1.2, SD = 0.8
Worrying (6 items)	10.7, SD = 5.6	0–24	0–24	1.8, SD = 0.9
Urging (8 items)	12.5, SD = 6.6	0–32	0–32	1.6, SD = 0.8
Overall score (27 items)***	38.4, SD = 17.5	0–108	0–108

*Based on sum of the Likert scale response options: 0–4 (Van Wijingaarden et al. 2000)

**Based on average of the Likert scale response options: 0–4

***IEQ29 is included in “tension” and “supervision; IEQ43 is included in “tension” and “worrying”