Skip to main content

Table 1 Distribution of demographic characteristics between cases and controls

From: The consumption of chili peppers and the risk of colorectal cancer: a matched case-control study

Variables Cases N(%) Controls N(%) χ 2 P
Education     
 Primary school and below 151(37.75) 175(43.75) 5.576 0.062
 Junior-senior high school and secondary school 216(54.00) 183(45.75)   
 Junior college and above 33 (8.25) 42(10.50)   
Profession     
 Enterprises and institutions 104(26.00) 111(27.75) 1.287 0.864
 Manufacturing industry 78(19.50) 85(21.25)   
 Transport industry 12 (3.00) 13 (3.25)   
 Agriculture, forestry, fishery, and animal husbandry 145(36.25) 131(32.75)   
 Others 61(15.25) 60(15.00)   
Household per capita annual income(yuan per year)     
 < 10000 134(33.50) 118(29.50) 1.530 0.465
 10000–20000 159(39.75) 166(41.50)   
 > 20000 107(26.75) 116(29.00)