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Table 1 Summary of the factor analysis matrix with communality summary in patients, n = 20

From: Validation in Swedish of Sydney Swallow Questionnaire

Question

Factor 1 dysphagia

Factor 2

Factor 3

Factor 4

Communality summary loading

1

0.788

0.388

0.239

-0.106

0.840

2

0.837

-0.345

-0.184

-0.153

0.877

3

0.809

-0.362

0.066

-0.312

0.887

4

0.889

-0.248

0.189

-0.079

0.893

5

0.805

0.176

0.424

-0.249

0.922

6

0.786

0.343

0.196

-0.282

0.852

7

0.622

0.455

-0.498

0.170

0.871

8

0.625

0.498

0.120

0.418

0.827

9

0.765

0.124

-0.003

-0.258

0.667

10

0.781

0.099

0.000

0.449

0.821

11

0.858

-0.293

-0.225

0.243

0.932

12

0.336

-0.287

0.759

0.346

0.891

13

0.812

-0.452

-0.036

0.251

0.928

14

0.853

0.030

-0.227

0.067

0.785

15

0.822

-0.322

-0.310

-0.012

0.876

16

0.914

0.175

0.039

0.050

0.871

17

0.804

0.140

-0.166

-0.230

0.747

Variance

61.2

9.5

8.3

6.2