Table 3.

The percentages of medical students who agreed with statements regarding the prevention of colorectal cancer

Preventive factors	Basic level	Clinical level	P	Male	Female	P	Mean for total population
Increase the intensity and regularity of physical activity	61.6	65.3	ns	59.4	66.1	0.042	63.6
Avoid high-fat diet	78.8	87.9	0.038	84.4	82.9	ns	83.5
Increase the consumption of fruits and vegetables	77.5	89.1	0.021	82.8	83.9	ns	83.3
Reduce calorie intake	36.1	48.3	0.018	36.6	46.0	0.022	42.3
Avoid excess alcohol	66.8	67.6	ns	68.6	65.7	ns	67.2
Stop smoking	69.0	80.2	0.038	73.1	75.9	ns	74.6

P value according to chi-squared test for the difference between basic and clinical groups and between male and female groups

ns difference not significant