Table 3 Factor analysis and varimax rotated factor matrix of the MHISS.

Factors	Eigenvalue	Variance (%)	Cumulative %
F1	4.26	35.48	35.48
F2	1.76	14.69	50.67
F3	1.47	12.27	62.44

MHISS items	Factor 1	Factor 2	Factor 3
1	0.844	0.184	0.131
2	0.393	0.474	0.393
3	0.694	0.292	0.038
4	0.812	0.062	0.096
5	0.876	0.005	0.207
6	0.754	0.081	0.135
7	0.277	0.572	0.277
8	0.013	0.676	0.061
9	0.028	0.742	0.091
10	0.184	0.663	0.390
11	0.149	0.107	0.847
12	0.208	0.122	0.844

The highest loading of each item is shown in bold.