		(1)	(2)
VARIABLES	LABELS	Unbalanced	Balanced
			
2.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 2, Less than once a month	0.052	0.050
		(0.033)	(0.039)
3.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 3, 1-2 times/mth	0.049	0.024
		(0.037)	(0.047)
4.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 4, 1-2 times/wk	0.040	0.021
		(0.038)	(0.049)
5.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 5, 3-4 times/wk	0.061	0.046
		(0.070)	(0.078)
6.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 6, 5-6 times/wk	-0.123	0.046
		(0.227)	(0.246)
7.pdrink	S1 MAIN Frequency of alcohol consumption before preg - reverse categories = 7, Every day	0.323	0.381
		(0.167)	(0.188)
1.psmoke	smoking during pregnancy = 1, yes	-0.079	-0.084
		(0.036)	(0.043)
1.lowbw	low birth weight = 1, lbw	-0.162***	-0.215***
		(0.057)	(0.066)
1.pndepr	pndepr = 1, Yes	-0.057	-0.056
		(0.026)	(0.031)
1.bfeed	age when last had breast milk - in months = 1, 1 day -3 months	-0.027	-0.043
		(0.031)	(0.036)
2.bfeed	age when last had breast milk - in months = 2, 13 weeks -6 months	0.055	0.031
		(0.038)	(0.041)
3.bfeed	age when last had breast milk - in months = 3, more than 6 months	0.013	-0.041
		(0.048)	(0.054)
2.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 2, October	-0.022	-0.042
		(0.049)	(0.064)
3.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 3, November	0.091	0.077
		(0.054)	(0.066)
4.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 4, December	-0.068	-0.060
		(0.054)	(0.066)
5.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 5, January	-0.009	-0.031
		(0.048)	(0.063)
6.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 6, February	-0.092	-0.113
		(0.049)	(0.064)
7.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 7, March	0.025	0.044
		(0.050)	(0.058)
8.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 8, April	0.114	0.108
		(0.051)	(0.065)
9.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 9, May	0.070	0.045
		(0.055)	(0.065)
10.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 10, June	-0.025	-0.029
		(0.055)	(0.066)
11.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 11, July	0.048	0.039
		(0.058)	(0.071)
12.month2	RECODE of month (Cohort Member Date of Birth (month) ) = 12, August	0.088	0.095
		(0.054)	(0.066)
1.cmsex	RECODE of ahcsex00 (Cohort Member Sex   ) = 1, Female	0.069***	0.054
		(0.022)	(0.027)
2.ethnic6	S1 DV Cohort Member Ethnic Group - 6 category Census class C1 = 2, Mixed	-0.102	-0.082
		(0.082)	(0.096)
3.ethnic6	S1 DV Cohort Member Ethnic Group - 6 category Census class C1 = 3, Indian	-0.130	-0.096
		(0.081)	(0.096)
4.ethnic6	S1 DV Cohort Member Ethnic Group - 6 category Census class C1 = 4, Pakistani and Bangladeshi	-0.430***	-0.426***
		(0.084)	(0.095)
5.ethnic6	S1 DV Cohort Member Ethnic Group - 6 category Census class C1 = 5, Black or Black British	0.008	0.057
		(0.079)	(0.102)
6.ethnic6	S1 DV Cohort Member Ethnic Group - 6 category Census class C1 = 6, Other Ethnic group (inc Chinese,Other)	-0.299	-0.267
		(0.152)	(0.205)
1.xsibs	S2 DV Number of siblings of CM in household = 1, 1	0.008	-0.006
		(0.030)	(0.035)
2.xsibs	S2 DV Number of siblings of CM in household = 2, 2	0.071	0.044
		(0.037)	(0.045)
3.xsibs	S2 DV Number of siblings of CM in household = 3, 3+	-0.030	-0.022
		(0.056)	(0.063)
2.xincome	DV OECD Income Weighted Quintiles (Single Country Analysis) = 2, Fourth quintile	-0.046	-0.068
		(0.030)	(0.034)
3.xincome	DV OECD Income Weighted Quintiles (Single Country Analysis) = 3, Third quintile	-0.091	-0.094
		(0.038)	(0.039)
4.xincome	DV OECD Income Weighted Quintiles (Single Country Analysis) = 4, Second quintile	-0.149***	-0.149***
		(0.043)	(0.050)
5.xincome	DV OECD Income Weighted Quintiles (Single Country Analysis) = 5, Lowest quintile	-0.120	-0.144
		(0.046)	(0.056)
2.mage	S1 MAIN Respondent age at birth of CM (grouped) = 2, 20 to 29	0.063	0.102
		(0.058)	(0.077)
3.mage	S1 MAIN Respondent age at birth of CM (grouped) = 3, 30 to 39	0.043	0.088
		(0.058)	(0.074)
4.mage	S1 MAIN Respondent age at birth of CM (grouped) = 4, 40 plus	-0.109	-0.020
		(0.092)	(0.111)
1.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 1, NVQ level 1	-0.026	0.001
		(0.054)	(0.069)
2.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 2, NVQ level 2	0.041	0.055
		(0.043)	(0.053)
3.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 3, NVQ level 3	0.078	0.087
		(0.050)	(0.058)
4.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 4, NVQ level 4	0.092	0.120
		(0.054)	(0.062)
5.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 5, NVQ level 5	0.032	0.024
		(0.058)	(0.065)
6.xmeduc	S3 MAIN DV Respondent NVQ Highest Level (across sweeps 1,2 and 3) = 6, Overseas qual only	-0.001	0.040
		(0.050)	(0.061)
xmkess00	S2 MAIN DV Kessler K6 Scale	-0.004	-0.005
		(0.004)	(0.005)
2.xmghealth	RECODE of bmgehe00 (S2 MAIN General health) = 2, fair	0.072	0.107
		(0.115)	(0.132)
3.xmghealth	RECODE of bmgehe00 (S2 MAIN General health) = 3, good	0.228	0.252
		(0.113)	(0.128)
4.xmghealth	RECODE of bmgehe00 (S2 MAIN General health) = 4, excellent	0.437***	0.456***
		(0.113)	(0.129)
1.xmlongill	RECODE of bmloil00 (S2 MAIN Longstanding illness/disability/infirm) = 1, yes	-0.076	-0.108
		(0.036)	(0.043)
1.bmphys	RECODE of bmsdpaa0 (S2 MAIN Anyone at home help child to learn sport etc C1) = 1, yes	0.040	0.020
		(0.029)	(0.031)
1.bfruit	RECODE of bmstfv00 (S2 MAIN Fresh fruit or veg once a day for child) = 1, yes	0.065	-0.116
		(0.067)	(0.087)
1.xpsych	RECODE of bmsdhsa0 (S2 MAIN Complains of headaches/stomach-aches/sickness C1) = 1, yes	-0.193***	-0.183***
		(0.041)	(0.050)
1.xpick	RECODE of bmsdpba0 (S2 MAIN Picked on or bullied by other children C1) = 1, yes	-0.087	-0.106
		(0.044)	(0.056)
Constant	Constant	4.011***	4.186***
		(0.157)	(0.190)
			
Observations		5,428	4,318
R-squared		0.102	0.106
Standard errors in parentheses			
*** p<0.005263, ** p<0.002632, * p<0.000526			
