Table 1

The demographic profile based on the questionnaire respondents and presented as proportions within the respective survey groups. (n = 4,450)

N

%

Wave 1a

Wave 2b

P value


Regional

Pin-Tung

2292

51.5

-----

-----

Kaohsiung

2158

48.5

-----

-----

Gender

Male

2237

50.3

51.7

48.7

0.046

Female

2213

49.7

48.3

51.3

Grade

3

1057

23.8

23.9

23.6

0.925

4

1099

24.7

25.0

24.3

5

1120

25.2

25.0

25.3

6

1174

26.4

26.1

26.7

Ethnicity

Non-aboriginal

3000

67.4

61.4

73.8

0.025

Aboriginal

915

20.6

17.0

24.3

School Geography

Urban

1923

43.2

42.1

42.5

0.358

Rural

1662

37.3

33.2

34.6

Mountain

865

19.4

24.7

23.0

Monthly household income

High (> $80,000)

557

17.8

19.3

16.4

0.039

Middle ($40,000-$80,000)

1081

34.6

33.7

35.5

Low (< $40,000)

1483

47.5

47.0

48.1

Mother's educational attainment

College or higher

287

8.3

8.9

7.7

0.098

High school

2240

65.1

63.6

66.6

Lower than high school

913

26.5

27.4

25.7

Father's educational attainment

College or higher

401

12.5

12.8

12.2

0.512

High school

1857

57.8

57.0

58.7

Lower than high school

954

29.7

30.2

29.1


aWave 1 survey: the number of respondents in the 26 Ping-Tung elementary schools in 2008

bWave 2 survey: the number of respondents in the 26 Kaohsiung elementary schools in 2009

Variation in the total sample size across the various characteristics is due to missing data

Huang et al. BMC Public Health 2012 12:40   doi:10.1186/1471-2458-12-40

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