-------------------------------------------------------------------------------- name: log: \\Cronus\www\teaching\postreg\coffee_codebook.txt log type: text opened on: 23 Apr 2010, 12:34:00 file coffee.dta saved -------------------------------------------------------------------------------- age age at conception -------------------------------------------------------------------------------- type: numeric (byte) range: [15,45] units: 1 unique values: 31 missing .: 0/8000 mean: 29.2293 std. dev: 4.27893 percentiles: 10% 25% 50% 75% 90% 24 26 29 32 35 -------------------------------------------------------------------------------- parity parity -------------------------------------------------------------------------------- type: numeric (byte) range: [0,6] units: 1 unique values: 7 missing .: 1/8000 tabulation: Freq. Value 3744 0 2960 1 1036 2 216 3 30 4 9 5 4 6 1 . -------------------------------------------------------------------------------- bmi body mass index -------------------------------------------------------------------------------- type: numeric (float) range: [15.570934,61.245674] units: 1.000e-06 unique values: 1409 missing .: 145/8000 mean: 23.6947 std. dev: 4.27653 percentiles: 10% 25% 50% 75% 90% 19.433 20.7612 22.7204 25.5102 29.1363 -------------------------------------------------------------------------------- socialgr social group -------------------------------------------------------------------------------- type: numeric (byte) label: social range: [1,3] units: 1 unique values: 3 missing .: 0/8000 tabulation: Freq. Numeric Label 4232 1 high 3008 2 midle 760 3 low -------------------------------------------------------------------------------- birthw (unlabeled) -------------------------------------------------------------------------------- type: numeric (int) range: [454,5550] units: 1 unique values: 894 missing .: 11/8000 mean: 3583.03 std. dev: 563.43 percentiles: 10% 25% 50% 75% 90% 2920 3250 3600 3950 4250 -------------------------------------------------------------------------------- coffee cups per day -------------------------------------------------------------------------------- type: numeric (float) range: [0,20] units: .1 unique values: 19 missing .: 369/8000 mean: 1.38095 std. dev: 2.30124 percentiles: 10% 25% 50% 75% 90% 0 0 .5 2 4 -------------------------------------------------------------------------------- smoking cig per day -------------------------------------------------------------------------------- type: numeric (float) range: [0,53] units: 1.000e-08 unique values: 34 missing .: 374/8000 mean: 1.48218 std. dev: 4.005 percentiles: 10% 25% 50% 75% 90% 0 0 0 0 7 -------------------------------------------------------------------------------- gestage gestational age in weeks -------------------------------------------------------------------------------- type: numeric (byte) range: [23,44] units: 1 unique values: 22 missing .: 0/8000 mean: 39.5631 std. dev: 1.79608 percentiles: 10% 25% 50% 75% 90% 38 39 40 41 41 -------------------------------------------------------------------------------- sga small for gestational age -------------------------------------------------------------------------------- type: numeric (byte) range: [0,1] units: 1 unique values: 2 missing .: 11/8000 tabulation: Freq. Value 7764 0 225 1 11 . -------------------------------------------------------------------------------- caffeine mg per day -------------------------------------------------------------------------------- type: numeric (int) range: [0,2000] units: 1 unique values: 49 missing .: 1374/8000 mean: 206.871 std. dev: 240.47 percentiles: 10% 25% 50% 75% 90% 0 25 125 300 500 -------------------------------------------------------------------------------- id (unlabeled) -------------------------------------------------------------------------------- type: numeric (float) range: [50,91967] units: 1 unique values: 8000 missing .: 0/8000 mean: 46551.2 std. dev: 26169.6 percentiles: 10% 25% 50% 75% 90% 10661 23973 46469 69123 83243 name: log: \\Cronus\www\teaching\postreg\coffee_codebook.txt log type: text closed on: 23 Apr 2010, 12:34:01 --------------------------------------------------------------------------------