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Table 2 Distribution of students by gender, age and selected socio-demographic characteristics

From: Knowledge of human papillomavirus infection and its prevention among adolescents and parents in the greater Milan area, Northern Italy

 

Females

(n = 649)

 

Males

(n = 209)

 

All

(n = 863)a

 
 

No.

%

No.

%

No.

%

Age (years)

      

14-15

231

35.6

85

40.7

317

36.7

16-17

309

47.6

92

44.0

402

46.6

≥18

107

16.5

30

14.3

137

15.9

Missing values

2

0.3

2

1.0

7

0.8

Mean age ± SD (years)

16.2 ± 1.44

 

16.0 ± 1.59

 

16.1 ± 1.48

 

Education (mother)

      

Middle school diploma

133

20.5

28

13.4

161

18.7

High school diploma

312

48.1

93

44.5

408

47.3

Degree

191

29.4

85

40.7

278

32.1

Missing values

13

2.0

3

1.4

16

1.9

Education (father)

      

Middle school diploma

148

22.8

32

15.3

180

20.9

High school diploma

242

37.3

62

29.7

308

35.7

Degree

239

36.8

108

51.7

348

40.3

Missing values

20

3.1

7

3.3

27

3.1

No. of siblings

      

0

150

23.1

41

19.6

194

22.5

1

359

55.3

115

55.0

476

55.2

2

104

16.1

38

18.2

142

16.4

≥3

36

5.5

15

7.2

51

5.9

  1. SD, standard deviation. a Five students did not answer the question concerning gender.