Table 4.

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

Symptoms of colorectal cancer	Basic level	Clinical level	P	Male	Female	P	Mean for total population
Rectal bleeding	77.3	82.4	0.037	74.8	83.0	0.039	79.9
Fresh blood in stool	75.5	85.7	0.029	80.0	81.1	ns	80.6
Black stool	33.9	20.0	0.035	24.2	30.1	0.022	27.0
Change in bowel habits, including diarrhea and constipation	54.8	70.5	0.018	57.3	66.4	0.028	63.0
Change of consistency of stool	42.5	61.9	0.002	50.2	53.9	ns	52.5
Persistent abdominal discomfort	68.8	60.7	0.036	65.8	63.8	ns	64.6
Unexplained weight loss	60.1	87.1	0.004	70.8	75.7	ns	73.9
Lack of appetite, weakness, and fatigue	35.6	47.6	0.041	41.5	42.0	ns	41.8

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