Table 4

Factorial ANOVA results indicating main and interaction effects of gender and type of physician on tobacco-related practices

Source of Variance

Sum of Squares

df

Mean Square

F

p

Gender

287.89

1

287.89

6.87

.01*

Type of Physician

37.38

1

37.38

.89

.35

Gender by Type of Physician

32.24

1

32.24

.77

.39

Error

1717.12

41

41.88

*R Squared = .152

Soto Mas et al. BMC Public Health 2005 5:120   doi:10.1186/1471-2458-5-120