Table 4.

Confirmatory factor analysis (CFA) of the CIS‐R in the full sample – two‐factor solutions

Factor 1: “Depression‐anxiety”										Factor 2: “Somatic symptoms”
	Forgetfulness/concentration problems	Sleep problems	Irritability	Depression	Worries	Phobias	Compulsive behaviours	Obsessive thoughts	Depressive Ideas	Somatic symptoms	Fatigue	Physical health worries	Anxiety	Panic
Model 1: No constraints; all symptoms permitted to vary
White British	1.00	1.08	1.27	1.21	1.53	0.35	0.39	0.62	1.24	1.00	2.31	0.60	1.05	0.39
Irish	1.00	1.08	1.05	0.91	1.31	0.48	0.46	0.58	0.95	1.00	2.60	0.62	1.02	0.58
Black Caribbean	1.00	1.20	1.05	0.98	1.29	0.39	0.59	0.54	0.96	1.00	2.58	0.91	0.78	0.38
Bangladeshi	1.00	1.01	0.73	0.99	1.10	0.28	0.40	0.48	0.95	1.00	1.67	1.01	0.63	0.45
Indian	1.00	1.10	0.91	1.07	1.27	0.29	0.39	0.68	1.09	1.00	1.97	0.81	0.86	0.40
Pakistani	1.00	1.25	1.03	1.08	1.12	0.36	0.52	0.77	1.08	1.00	1.74	0.87	0.85	0.34
Goodness‐of‐fit statistics for model 1
χ 2	2690.84
	p < 0.001
df	456
AIC	3038.84
TLI	0.84
RMSEA	0.03
Model 2: Partial invariance model; Factor 1 is constrained whilst Factor 2 is permitted to vary
White British										1.00	2.33	0.60	0.93	0.40
Irish										1.00	2.58	0.62	1.04	0.56
Black Caribbean	1.00	1.13	0.99	1.04	1.27	0.35	0.46	0.61	1.05	1.00	2.60	0.92	0.78	0.38
Bangladeshi										1.00	1.67	1.01	0.72	0.45
Indian										1.00	1.97	0.80	0.86	0.40
Pakistani										1.00	1.74	0.87	0.84	0.34
Goodness‐of‐fit statistics for Model 2
χ 2	2816.88
	p < 0.001
df	496
AIC	3084.88
TLI	0.86
RMSEA	0.03
Model 3: Fully constrained model; all symptoms have been constrained across the full sample
Overall sample	1.00	1.13	0.99	1.04	1.26	0.35	0.46	0.61	1.05	1.00	2.05	0.77	0.99	0.45
Goodness‐of‐fit statistics for Model 3
χ 2	3060.11
	p < 0.001
df	516
AIC	3288.11
TLI	0.84
RMSEA	0.03