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Table 3 Principal component analysis with oblique rotation with fixed eight factors

From: Tinnitus functional index: validation of the German version for Switzerland

Item Factor
1 Intrusive 2 Auditory 3 Sleep 4 Cognitive 5 Relaxation 6 Emotional 7 Quality of Life 8 Sense of Control
1 .845 .193 .207 .114 .180 .138 .213 .045
3 .767 .251 .198 .203 .263 .164 .175 .153
6 .742 a .111 .191 .271 .236 .181 .110 .224 a
2 .679 .326 .204 .157 .245 .259 .090 .126
13 .149 .891 .062 .177 .153 .069 .122 .086
14 .167 .872 .146 .261 .121 .158 .065 .079
15 .292 .822 .177 .198 .040 .136 .246 .088
11 .187 .143 .888 .145 .212 .119 .157 .085
10 .224 .097 .874 .138 .253 .110 .101 .086
12 .181 .155 .872 .179 .202 .159 .109 .093
8 .170 .293 .174 .754 .199 .226 .247 .106
7 .220 .327 .189 .730 .340 .095 .215 .095
22 .254 .337 .237 .657 a .140 .303 .193 a .030
9 .414 .279 .213 .514 .288 .265 .256 .067
18 .280 .143 .296 .178 .799 .225 .029 .060
16 .316 .151 .303 .220 .754 .174 .192 .118
17 .292 .118 .339 .281 .718 .169 .235 .116
23 .323 .214 .203 .364 .270 .679 .194 .135
24 .400 .231 .215 .276 .292 .635 .224 .148
25 .344 .194 .253 .298 .318 .515 .449 .122
21 .256 .413 .188 .368 .123 .160 .663 .075
20 .268 .088 .251 .285 .338 .381 .620 .137
19 .260 .466 .181 .383 .116 .173 .612 .059
4 .307 .193 .199 .119 .158 .163 .109 .862
5 .485 .254 .314 .207 .292 .489 .253 .151 a
Initial Eigenvalue 15.26 2.10 1.36 1.15 .80 .61 .53 .48
% of variance 61.06 8.41 5.44 4.60 3.20 2.44 2.13 1.90
Cumulative % 61.06 69.46 74.90 79.50 82.70 85.14 87.27 89.18
  1. The correlations between each item and the fixed eight factors are shown. The eigenvalues of each factor and its corresponding variance are also presented. Although the eigenvalues of the last factors were smaller than 0.7, there are correlations between the items and their factors. Exceptions are the following three items (marked witha and as well in boldface): TFI_6, TFI_22, TFI_5. The values less than 0.4 are italic