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Table 8 Factor loadings from the Exploratory Factor Analysis, by the CPQ domainsa (N = 307)

From: Modification and psychometric evaluation of the child perceptions questionnaire (CPQ11–14) in assessing oral health related quality of life among Lithuanian children

Domain

Item

Factor 1

Factor 2

Factor 3

OS (KMO = 0.746)

O2 Bleeding gums

0.721

−0.343

 

O5 Food caught in or between teeth

0.712

0.187

 

O4 Bad breath

0.705

0.013

 

O6 Food stuck to roof of mouth

0.657

0.239

 

O3 Mouth sores

−0.129

0.927

 

O1 Pain in teeth, lips, jaws or mouth

0.290

0.474

 

Total variance explained (%)

38.4

16.6

 

FL (KMO = 0.666)

F5 Difficult to open mouth wide

0.843

−0.070

 

F8 Difficult to drink with a straw

0.805

−0.177

 

F7 Difficult to eat foods you would like to eat

0.601

0.198

 

F9 Difficult to drink or eat hot or cold foods

0.528

0.021

 

F4 Difficult to bite or chew food like apples, corn on the cob or steak

0.400

0.267

 

F2 Taken longer than others to eat a meal

0.291

0.273

 

F1 Breathed trough mouth

−0.002

0.824

 

F3 Trouble sleeping

−0.046

0.812

 

F6 Difficult to say any words

0.005

0.626

 

Total variance explained (%)

31.0

16.1

 

EWB (KMO = 0.862)

E4 Concerned what other people think about you

0.887

−0.004

 

E5 Worried that is less attractive than other people

0.884

−0.002

 

E9 Worried that is different than other people

0.862

−0.091

 

E8 Worried that is less healthy then other people

0.852

0.032

 

E6 Upset

0.838

−0.015

 

E1 Irritable or frustrated

−0.077

0.784

 

E2 Unsure of himself

−0.153

0.764

 

E7 Nervous or afraid

0.047

0.720

 

E3 Shy or embarrassed

0.345

0.557

 

Total variance explained (%)

45.2

20.5

 

SWB (KMO = 0.788)

S10 Argued with other children or family

0.862

−0.173

0.059

S7 Avoiding smiling or laughing when around other children

0.772

0.029

−0.180

S12 Left out by other children

0.754

−0.075

0.103

S9 Avoiding to spend time with other children

0.693

0.188

−0.009

S13 Asked questions by other children

0.603

0.040

0.147

S6 Avoiding to talk to other children

0.484

0.029

0.417

S2 Hard time paying attention in school

0.000

0.863

−0.016

S3 Difficulty doing homework

−0.184

0.863

0.123

S8 Difficulty playing a musical instrument such as a recorder, flute, clarinet, trumpet

0.050

0.767

−0.266

S1 Missed school

0.375

0.667

−0.172

S4 Avoiding to speak or read out loud in class

−0.168

0.590

0.489

S11 Teased or called names by other children

0.006

−0.252

0.874

S5 Avoiding activities like sports, clubs, drama, music, school trips

0.140

0.180

0.643

Total variance explained (%)

40.2

14.2

8.5

  1. aExtraction Method: Principal Component Analysis on eigenvalue > 1. Rotation Method: Promax with Kaiser Normalization. The underlined terms indicate the main loadings for corresponding factors. KMO: Kaiser-Meyer-Olkin measure