------------------------------------------------------------------------------------ log: \\Cronus\www\teaching\postreg\case_control_codebook.txt log type: text opened on: 13 Jun 2008, 08:56:25 file case_control.dta saved ------------------------------------------------------------------------------------ id (unlabeled) ------------------------------------------------------------------------------------ type: numeric (float) range: [1,977] units: 1 unique values: 977 missing .: 0/977 mean: 489 std. dev: 282.18 percentiles: 10% 25% 50% 75% 90% 98 245 489 733 880 ------------------------------------------------------------------------------------ cancer esophageal cancer ------------------------------------------------------------------------------------ type: numeric (float) label: yesno range: [0,1] units: 1 unique values: 2 missing .: 0/977 tabulation: Freq. Numeric Label 776 0 no 201 1 yes ------------------------------------------------------------------------------------ smoker servere smoker ------------------------------------------------------------------------------------ type: numeric (float) label: gs range: [0,1] units: 1 unique values: 2 missing .: 0/977 tabulation: Freq. Numeric Label 761 0 0-19 gm/day 216 1 >=20 gm/day ------------------------------------------------------------------------------------ age age in years ------------------------------------------------------------------------------------ type: numeric (float) label: alabel range: [1,6] units: 1 unique values: 6 missing .: 0/977 tabulation: Freq. Numeric Label 118 1 25-34 199 2 35-44 213 3 45-54 242 4 55-64 161 5 65-74 44 6 >=75 log: \\Cronus\www\teaching\postreg\case_control_codebook.txt log type: text closed on: 13 Jun 2008, 08:56:25 ------------------------------------------------------------------------------------