Table 1 Survey sample characteristics.

From: Use of refillable bottles by Italian students and non-student adults: testing an extended model of the theory of planned behavior

Demographics

Total (n = 835)

Students (n = 429)

Non-student adults (n = 406)

Age

18–75 years

M = 31.34 SD = 14.61

19–29 years

M = 20.68 SD = 2.19

18–75 years

M = 42.58 SD = 13.64

 

n

%

n

%

n

%

Gender

 Women

615

73.7

375

87.4

240

59.1

 Men

217

26.0

52

12.1

165

40.6

 I prefer not to answer

3

0.3

2

0.5

1

0.2

Italian geographic area

 Northeast

730

87.4

385

89.7

345

85.0

 Northwest

50

6.0

22

5.1

28

6.9

 Central

24

2.9

7

1.6

17

4.2

 South

28

3.4

15

3.5

13

3.2

 Missing data

3

0.4

0

0

3

0.7

Occupation

 University students

429

51.4

429

100

0

0

 Employed

293

35.1

0

0

293

72.2

 Out of work (housewife, retired, unemployed)

113

13.5

0

0

113

27.8

 Missing data

0

0

0

0

0

0

Education

 Compulsory school

51

6.1

0

0

51

12.5

 High school

612

73.3

391

91.1

221

54.4

 University degree

172

20.6

38

8.9

134

33.0

 Missing data

0

0

0

0

0

0