		(1)	(2)
VARIABLES	LABELS	Unbalanced	Balanced
			
2.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 2, Less than once a month	0.051	0.071
		(0.030)	(0.034)
3.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 3, 1-2 times/mth	0.058	0.074
		(0.037)	(0.037)
4.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 4, 1-2 times/wk	0.007	0.022
		(0.037)	(0.038)
5.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 5, 3-4 times/wk	0.162	0.153
		(0.075)	(0.078)
6.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 6, 5-6 times/wk	-0.250	-0.221
		(0.131)	(0.167)
7.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 7, Every day	-0.113	-0.134
		(0.235)	(0.259)
1.psmoke	smoking during pregnancy = 1, yes	-0.030	-0.020
		(0.034)	(0.037)
1.lowbw	low birth weight = 1, lbw	-0.096	-0.147
		(0.051)	(0.059)
1.pndepr	pndepr = 1, Yes	-0.058	-0.063
		(0.027)	(0.029)
1.bfeed	age when last had breast milk - in months = 1, 1 day -3 months	-0.040	-0.058
		(0.028)	(0.030)
2.bfeed	age when last had breast milk - in months = 2, 13 weeks -6 months	-0.025	-0.044
		(0.034)	(0.037)
3.bfeed	age when last had breast milk - in months = 3, more than 6 months	-0.061	-0.058
		(0.043)	(0.047)
2.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 2, October	-0.000	0.018
		(0.052)	(0.053)
3.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 3, November	0.038	0.029
		(0.053)	(0.058)
4.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 4, December	-0.070	-0.083
		(0.056)	(0.064)
5.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 5, January	0.023	0.051
		(0.057)	(0.061)
6.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 6, February	0.024	0.008
		(0.053)	(0.059)
7.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 7, March	-0.026	-0.031
		(0.052)	(0.061)
8.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 8, April	0.018	0.040
		(0.051)	(0.054)
9.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 9, May	0.041	0.055
		(0.049)	(0.054)
10.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 10, June	-0.014	-0.035
		(0.063)	(0.066)
11.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 11, July	0.029	0.050
		(0.054)	(0.061)
12.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 12, August	0.060	0.029
		(0.051)	(0.056)
1.cmsex	RECODE of ahcsex00 (Cohort Member Sex   ) = 1, Female	0.059***	0.064***
		(0.020)	(0.021)
2.ethnic6	S1 DV Cohort Member Ethnic Group - 6 category Census class C1 = 2, Mixed	0.060	0.066
		(0.064)	(0.073)
3.ethnic6	S1 DV Cohort Member Ethnic Group - 6 category Census class C1 = 3, Indian	-0.247	-0.207
		(0.095)	(0.108)
4.ethnic6	S1 DV Cohort Member Ethnic Group - 6 category Census class C1 = 4, Pakistani and Bangladeshi	-0.286***	-0.293***
		(0.064)	(0.072)
5.ethnic6	S1 DV Cohort Member Ethnic Group - 6 category Census class C1 = 5, Black or Black British	-0.093	-0.074
		(0.066)	(0.075)
6.ethnic6	S1 DV Cohort Member Ethnic Group - 6 category Census class C1 = 6, Other Ethnic group (inc Chinese,Other)	-0.376	-0.432
		(0.149)	(0.173)
1.xsibs	S2 DV Number of siblings of CM in household = 1, 1	-0.004	-0.036
		(0.036)	(0.040)
2.xsibs	S2 DV Number of siblings of CM in household = 2, 2	0.033	-0.012
		(0.037)	(0.039)
3.xsibs	S2 DV Number of siblings of CM in household = 3, 3+	-0.009	-0.031
		(0.053)	(0.059)
2.xincome	DV OECD Income Weighted Quintiles (Single Country Analysis) = 2, Fourth quintile	-0.022	-0.013
		(0.028)	(0.028)
3.xincome	DV OECD Income Weighted Quintiles (Single Country Analysis) = 3, Third quintile	-0.089***	-0.108***
		(0.031)	(0.033)
4.xincome	DV OECD Income Weighted Quintiles (Single Country Analysis) = 4, Second quintile	-0.090	-0.092
		(0.041)	(0.044)
5.xincome	DV OECD Income Weighted Quintiles (Single Country Analysis) = 5, Lowest quintile	-0.008	0.007
		(0.045)	(0.046)
2.mage	S1 MAIN Respondent age at birth of CM (grouped) = 2, 20 to 29	0.095	0.105
		(0.053)	(0.064)
3.mage	S1 MAIN Respondent age at birth of CM (grouped) = 3, 30 to 39	0.080	0.090
		(0.052)	(0.064)
4.mage	S1 MAIN Respondent age at birth of CM (grouped) = 4, 40 plus	0.182	0.191
		(0.103)	(0.126)
1.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 1, NVQ level 1	-0.056	-0.018
		(0.059)	(0.061)
2.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 2, NVQ level 2	-0.079	-0.042
		(0.051)	(0.055)
3.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 3, NVQ level 3	0.007	0.021
		(0.055)	(0.061)
4.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 4, NVQ level 4	-0.013	0.011
		(0.051)	(0.054)
5.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 5, NVQ level 5	-0.075	-0.055
		(0.069)	(0.074)
6.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 6, Overseas qual only	-0.218	-0.118
		(0.107)	(0.112)
xmkess00	S2 MAIN DV Kessler K6 Scale	-0.007	-0.010
		(0.004)	(0.004)
2.xmghealth5	RECODE of cmgena00 (S3 MAIN: Resp's general health) = 2, fair	0.095	0.146
		(0.132)	(0.140)
3.xmghealth5	RECODE of cmgena00 (S3 MAIN: Resp's general health) = 3, good	0.106	0.154
		(0.128)	(0.138)
4.xmghealth5	RECODE of cmgena00 (S3 MAIN: Resp's general health) = 4, v good	0.298	0.340
		(0.129)	(0.140)
5.xmghealth5	RECODE of cmgena00 (S3 MAIN: Resp's general health) = 5, excellent	0.421***	0.459***
		(0.130)	(0.140)
1.xmlongill	RECODE of bmloil00 (S2 MAIN Longstanding illness/disability/infirm) = 1, yes	-0.043	-0.049
		(0.028)	(0.030)
2.cmsport2	RECODE of cmsport (S3 MAIN: How often resp/part does sport/exercise with CM C1) = 2, At least once a year	-0.072	-0.080
		(0.116)	(0.116)
3.cmsport2	RECODE of cmsport (S3 MAIN: How often resp/part does sport/exercise with CM C1) = 3, Every few months	0.045	-0.010
		(0.056)	(0.058)
4.cmsport2	RECODE of cmsport (S3 MAIN: How often resp/part does sport/exercise with CM C1) = 4, At least once a month	0.034	-0.018
		(0.043)	(0.044)
5.cmsport2	RECODE of cmsport (S3 MAIN: How often resp/part does sport/exercise with CM C1) = 5, Once or twice a week	-0.004	-0.039
		(0.040)	(0.043)
6.cmsport2	RECODE of cmsport (S3 MAIN: How often resp/part does sport/exercise with CM C1) = 6, Several times a week	0.085	0.046
		(0.037)	(0.042)
7.cmsport2	RECODE of cmsport (S3 MAIN: How often resp/part does sport/exercise with CM C1) = 7, Every day or almost every day	-0.017	-0.038
		(0.055)	(0.061)
2.xsport	RECODE of cmsehoa0 (S3 MAIN: Days per week CM does sport/exercise C1) = 2, One day a week	0.057	0.062
		(0.027)	(0.028)
3.xsport	RECODE of cmsehoa0 (S3 MAIN: Days per week CM does sport/exercise C1) = 3, Two days a week	0.077	0.065
		(0.033)	(0.036)
4.xsport	RECODE of cmsehoa0 (S3 MAIN: Days per week CM does sport/exercise C1) = 4, Three days a week	0.017	0.013
		(0.043)	(0.044)
5.xsport	RECODE of cmsehoa0 (S3 MAIN: Days per week CM does sport/exercise C1) = 5, Four days a week	0.088	0.094
		(0.067)	(0.069)
6.xsport	RECODE of cmsehoa0 (S3 MAIN: Days per week CM does sport/exercise C1) = 6, Five or more days a week	0.104	0.037
		(0.122)	(0.134)
1.xportfr	S3 MAIN: How many portions of fruit per day C1 = 1, One	0.170	0.105
		(0.087)	(0.095)
2.xportfr	S3 MAIN: How many portions of fruit per day C1 = 2, Two	0.145	0.102
		(0.085)	(0.091)
3.xportfr	S3 MAIN: How many portions of fruit per day C1 = 3, Three or more	0.211	0.162
		(0.084)	(0.088)
1.xpsych	RECODE of bmsdhsa0 (S2 MAIN Complains of headaches/stomach-aches/sickness C1) = 1, yes	-0.182***	-0.171***
		(0.033)	(0.036)
1.xpick	RECODE of bmsdpba0 (S2 MAIN Picked on or bullied by other children C1) = 1, yes	-0.183***	-0.192***
		(0.039)	(0.041)
Constant	Constant	4.127***	4.171***
		(0.193)	(0.212)
			
Observations		5,181	4,660
R-squared		0.120	0.123
Standard errors in parentheses			
*** p<0.005, ** p<0.0025, * p<0.0005			
