Table 5.

Subgroup analysis of the mean of different items of the FCV-19s by continent and target population.

Question	Group	Subgroup	No. S	Pooled mean	Confidence level (95%)	Subgroup differences test
						Q	df	P
Q1	Continent	Asia	8	3.41	3.22–3.60	2.32	3	0.509
		America	4	2.98	2.38–3.57
		Europe	2	3.17	2.65–3.69
		Australia	2	3.34	2.79–3.89
	Target	GP	14	3.15	3.15–3.48	0.01	1	0.931
		US	3	3.35	2.65–4.05
Q2	Continent	Asia	8	3.35	3.24–3.47	28.6	3	<0.0001
		America	4	2.98	2.46–3.49
		Europe	2	2.97	2.88–3.05
		Australia	2	3.16	2.61–3.72
	Target	GP	14	3.26	3.11–3.40	0.83	1	0.363
		US	3	3.11	2.84–3.38
Q3	Continent	Asia	8	1.89	1.51–2.28	1.67	3	0.643
		America	4	1.59	1.21–1.97
		Europe	2	1.62	1.39–1.86
		Australia	2	1.65	1.49–1.81
	Target	GP	14	1.83	1.60–2.07	2.46	1	0.117
		US	3	1.56	1.31–1.80
Q4	Continent	Asia	8	2.80	2.43–3.16	5.09	3	0.166
		America	4	2.49	1.62–3.52
		Europe	2	2.42	2.33–2.50
		Australia	2	2.29	2.03–2.54
	Target	GP	14	2.62	2.37–2.87	0.01	1	0.965
		US	3	2.65	1.35–3.95
Q5	Continent	Asia	8	3.11	2.88–3.33	2.66	3	0.447
		America	4	2.65	2.05–3.25
		Europe	2	2.95	2.86–3.04
		Australia	2	2.98	2.35–3.61
	Target	GP	14	2.99	2.78–3.20	0.91	1	0.339
		US	3	2.88	2.79–2.97
Q6	Continent	Asia	8	1.91	1.57–2.25	1.31	3	0.720
		America	4	1.66	1.29–2.04
		Europe	2	1.69	1.44–1.93
		Australia	2	1.77	1.53–2.00
	Target	GP	14	1.88	1.67–2.10	4.01	1	0.0453
		US	3	1.56	1.33–1.80
Q7	Continent	Asia	8	2.12	1.70–2.54	4.96	3	0.175
		America	4	1.82	1.41–2.23
		Europe	2	2.02	1.91–2.13
		Australia	2	1.74	1.48–1.99
	Target	GP	14	2.09	1.82–2.36	3.86	1	0.049
		US	3	1.70	1.43–1.98

Nos, Number of studies; GP, General Population, US, University Students.