Socio-demographic characteristics
n

Frequency n (%)

Mean ± S.D
Region
647
North Zone
109 (16.9)
East Coast
162 (25.0)
Central Zone
63 (9.7)
South Zone
50 (7.7)
Sabah
74 (11.5)
Sarawak
189 (29.2)
Area
647
Urban
272 (42.0)
Rural
375 (55.3)
Sex
647
Male
289 (44.7)
Female
358 (55.3)
Age
647
Form 1 (13 years old)
215 (33.2)
14.0 ± 0.9
Form 2 (14 years old)
222 (34.3)
Form 3 (15 years old)
210 (32.5)
Ethnicity
647
Malay
555 (85.7)
Chinese
3 (0.5)
Peninsular aborigines
6 (0.9)
Sabah indigenous
67 (10.4)
Sarawak indigenous
9 (1.4)
Others
7 (1.1)
Table 1: Socio-demographic characteristics of adolescents

Section/ Dimension

Number of items
Eigen value
Percentage of variance explained
Range of factor loadings

Reliability coefficient

(Cronbach’s alpha)
Test-retest reliability
Range of item-to-total correlations
Knowledge
--
--
--
--
0.654
0.631**
--
Attitude
27
--
33.81
--
0.845
0.358**
--
Dimension 1: Attitude towards food and physical activity functions
6
2.421
8.97
0.405~0.670
0.797
0.069
0.491~0.628
Dimension 2: Attitude towards food and physical activity choices
8
2.391
8.86
0.355~0.641
0.749
0.549**
0.336~0.524
Dimension 3: Attitude towards growth and development
8
2.292
8.49`
0.315~0.603
0.759
0.259**
0.310~0.573
Dimension 4: Attitude towards dietary and physical activity recommendations
5
2.026
7.50
0.302~0.546
0.643
0.176
0.314~0.485
Practice
28
--
37.84
--
0.636
0.481**
--
Dimension 1: Meal frequency
4
2.141
7.65
0.453~0.787
0.750
0.299**
0.450~0.648
Dimension 2: Daily intake of food groups
5
1.858
6.64
0.318~0.744
0.684
0.232*
0.253~0.571
Dimension 3: Energy dense food intake
5
1.857
6.63
0.535~0.682
0.734
0.353**
0.488~0.577
Dimension 4: Food selection and menu planning
4
1.655
5.91
0.463~0.744
0.674
0.353**
0.363~0.558
Dimension 5: Physical activity practices
4
1.614
5.76
0.331~0.641
0.656
0.386**
0.253~0.504
*p<0.05; **p<0.01
Table 2: Summary results of factor analysis and reliability for knowledge, attitude and practice towards healthy lifestyle
Attitude Section of KAP-HLQ
Practice Section of KAP-HLQ
Dimension
Dimension 1: Attitude towards food and physical activity functions
Dimension 2: Attitude towards food and physical activity choices
Dimension 3: Attitude towards growth and development
Dimension 1: Meal frequency
Dimension 2: Daily intake of food groups
Dimension 3: Energy dense food intake
Dimension 4: Food selection and menu planning
Dimension 5: Physical activity practices
Attitude of KAP-HLQ
Dimension 2: Attitude towards food and physical activity choices
0.156**
--
--
--
--
--
--
--
Dimension 3: Attitude towards growth and development
0.629**
0.116**
--
--
--
--
--
--
Dimension 4: Attitude towards dietary and physical activity recommendations
0.470**
0.332**
0.439**
--
--
--
--
--
Practice of KAP-HLQ
Dimension 2: Daily intake of food groups
--
--
--
0.061
--
--
--
--
Dimension 3: Energy dense food intake
--
--
--
0.403**
-0.102**
--
--
--
Dimension 4: Food selection and menu planning
--
--
--
-0.069
0.144**
0.020`
--
--
Dimension 5: Physical activity practices
--
--
--
0.234**
0.088*
-0.071
0.317**
--
Dimension 6: Sedentary activities
--
--
--
0.015
0.026
0.148**
0.057
-0.124**
* p<0.05; **p<0.01
Table 3: Inter-correlations between dimensions of attitude and practice on healthy lifestyle