Table 2

Associations of predicted poverty trajectories* using latent class analysis from age 9 months to 14 years and child health outcomes at child’s age 14 years in the UK Millennium Cohort Study

OR	Model*	n	Never in poverty	Poverty in early childhood	Poverty in late childhood	Persistent poverty
Socioemotional behavioural problems (SDQ≥17)	1	10 329	Ref.	2.73 (2.16 to 3.46)	4.73 (3.44 to 6.52)	3.97 (3.18 to 4.96)
Socioemotional behavioural problems (SDQ≥17)	2	9948	Ref.	2.17 (1.68 to 2.80)	3.80 (2.71 to 5.33)	3.17 (2.40 to 4.19)
Obesity	1	10 018	Ref.	2.04 (1.50 to 2.76)	1.96 (1.34 to 2.86)	2.21 (1.80 to 2.72)
Obesity	2	9640	Ref.	1.65 (1.24 to 2.20)	1.52 (1.01 to 2.29)	1.57 (1.20 to 2.04)
Longstanding illness	1	10 342	Ref.	1.20 (0.98 to 1.48)	2.01 (1.52 to 2.67)	1.50 (1.26 to 1.79)
Longstanding illness	2	9965	Ref.	1.34 (1.06 to 1.68)	2.52 (1.86 to 3.40)	1.98 (1.55 to 2.52)

Predicted poverty trajectories:
Never in poverty: consistently not in poverty from age 9 months to age 14 years.
Poverty in early childhood: in poverty from age 9 months to age 7 years.
Poverty in late childhood: in poverty from age 11 years to age 14.
Persistent poverty: consistently in poverty from age 9 months to age 14 years.
*Model 1 is the crude model. Model 2 is model 1 additionally adjusted for lone parenthood, maternal education and maternal ethnicity.
SDQ, Strengths and Difficulties Questionnaire.