Available from 2011 onwards. Number of cigarettes smoked on average per day during the first half of pregnancy [smokeqty1st] Smoking during the second Available from 2011 onwards. 0 = No half of pregnancy 1 = Yes Did the mother during the second half of pregnancy? 9 = Not stated [smoke2nd] Cigarettes per day 2nd half Available from 1994 to 2010. 1 = None pregnancy 2 = More than 10 per day [smokeqty] How many cigarettes each day on average were smoked in the 3 = 1-10 per day second half of pregnancy. 4 = Unknown 8 = Did not smoke during pregnancy 9 = Not stated Cigarettes per day during the Available from 2011 onwards. 0 = Did not smoke second half pregnancy 1 = Less than 1 per day [smoke2ndgp_recode] How many cigarettes each day on average were smoked in the 2 = 1-10 per day second half of pregnancy. 3 = More than 10 per day 4 = Unknown 9 = Not-stated Number of cigarettes smoked Available from 2011 onwards. on average per day during the second half of pregnancy [smokeqty2nd] Mother’s height Collected from 2016 onwards. [mheight] Mother’s height in centimetres (measured). Mother’s weight Collected from 2016 onwards. [mweight] Mother’s weight in kilograms (measured) as recorded in the first trimester of pregnancy.
Number of cigarettes smoked on average per day during the first half of pregnancy [smokeqty1st] Available from 2011 onwards. Smoking during the second half of pregnancy [smoke2nd] Available from 2011 onwards. Did the mother during the second half of pregnancy? 0 = No 1 = Yes 9 = Not stated Cigarettes per day 2nd half pregnancy [smokeqty] Available from 1994 to 2010. How many cigarettes each day on average were smoked in the second half of pregnancy. 1 = None 2 = More than 10 per day 3 = 1-10 per day 4 = Unknown 8 = Did not smoke during pregnancy 9 = Not stated Cigarettes per day during the second half pregnancy [smoke2ndgp_recode] Available from 2011 onwards. How many cigarettes each day on average were smoked in the second half of pregnancy. 0 = Did not smoke 1 = Less than 1 per day 2 = 1-10 per day 3 = More than 10 per day 4 = Unknown 9 = Not-stated Number of cigarettes smoked on average per day during the second half of pregnancy [smokeqty2nd] Available from 2011 onwards. Mother’s height [mheight] Collected from 2016 onwards. Mother’s height in centimetres (measured). Mother’s weight [mweight] Collected from 2016 onwards. Mother’s weight in kilograms (measured) as recorded in the first trimester of pregnancy.