Table 3.

Mean scores for measures at time points 1 and 2, by intervention(s)

Intervention(s)/measure	Time point 1 mean (s.d.)	Time point 2 mean (s.d.)	Mean difference P-values
PFA
PHQ-9, n = 48	10.92 (4.88)	5.08 (5.57)	<0.001
GAD-7, n = 48	10.52 (5.12)	4.98 (2.42)	<0.001
WSAS, n = 42	15.45 (7.70)	9.29 (6.32)	<0.001
TSQ, n = 22	4.41 (2.70)	1.60 (1.76)	<0.001
PFA + LICBT
PHQ-9, n = 17	12.94 (5.44)	5.35 (2.67)	<0.001
GAD-7, n = 17	12.41 (5.98)	4.41 (2.98)	<0.001
WSAS, n = 13	14.38 (6.20)	9.69 (5.88)	0.018
TSQ, n = 7	4.00 (0.82)	2.14 (1.68)	0.011
PFA + HIT
PHQ-9, n = 27	13.63 (5.01)	5.96 (3.71)	<0.001
GAD-7, n = 27	12.70 (3.83)	5.44 (3.38)	<0.001
WSAS, n = 23	19.44 (7.50)	10.67 (6.80)	<0.001
TSQ, n = 12	5.42 (4.03)	4.42 (3.29)	0.118
LICBT
PHQ-9, n = 14	15.43 (5.87)	5.79 (3.53)	<0.001
GAD-7, n = 14	12.93 (5.34)	5.43 (4.52)	<0.001
WSAS, n = 12	20.25 (7.67)	7.83 (4.95)	<0.001
HIT
PHQ-9, n = 16	12.91 (3.94)	6.25 (4.03)	<0.001
GAD-7, n = 16	14.31 (4.22)	6.81 (4.21)	<0.001
WSAS, n = 16	20.06 (8.90)	9.19 (6.86)	<0.001

TSQ scores were not collected or compared for LICBT and HIT cases at either time point because PFA did not form part of their support. P-values are provided for the time point 1–2 measure mean differences. PFA, psychological first aid; PHQ-9, Patient Health Questionnaire-9; GAD-7, Generalised Anxiety Disorder-7; WSAS, Work and Social Adjustment Scale; TSQ, Traumatic Screening Questionnaire; LICBT, low-intensity cognitive–behavioural therapy; HIT, high-intensity cognitive–behavioural therapy.