Males

Females

Step

Variables

R²

R² change

R² adj.

B

SE

β

R²

R² change

R² adj.

B

SE

β

.13

.13

.08

.08

.08

.04

1

Age

Education

Marital Status

Socioeconomic Status

BMI

−.02

.06

.06

−.01

−.04

.01

.13

.14

.14

.03

−.24*

.04

.04

−.01

−.14

−.01

.05

−.16

−.10

.02

.01

.10

.10

.07

.02

−.10

.04

−.12

−.10

.11

.33

.20

.26

.43

.35

.39

2

Attitude

Subjective Norms

Perceived Behavioural Control

Perceived Barriers

−.01

.53

.27

−.15

.09

.12

.16

.25

.22

.48***

.22

−.07

.09

.51

.19

−.51

.07

.08

.10

.20

.10

.48***

.14

−.19**

3

Perceived Gender Norms

NA

NA

NA

.43

.00

.39

.08

.23

.03