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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