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Longitudinal patterns of poverty and health in early childhood: exploring the influence of concurrent, previous, and cumulative poverty on child health outcomes.

Béatrice N, Lise G, Victoria ZM, Louise S - BMC Pediatr (2012)

Bottom Line: The mean number of mother-reported asthma-like attacks significantly decreased as children aged.Perceived health status at 5-months was significantly poorer among chronically poor children compared to never-poor children.Further longitudinal research is warranted to disentangle time-specific from cumulative effects of poverty on child health.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Social and Preventive Medicine, Université de Montreal, Montreal, Quebec, Canada. b.nikiema@umontreal.ca

ABSTRACT

Background: Although the links between poverty and health have often been studied , the dynamics of poverty and physical health in early childhood remain under-investigated. In particular, it is not known whether the health of young children is affected differently from that of adults by patterns of poverty unique to them.

Methods: We examined patterns of health from 5 to 41 months of age as a function of concurrent, lagged, and chronic exposure to insufficient income. Using data from the first four rounds of the Quebec Longitudinal Study of Child Development, we performed multilevel logistic and multilevel Poisson regressions and latent growth curve analyses to explore associations between exposure to poverty and mother-reported asthma-like attacks, and maternal perception of health status controlling for neonatal, maternal, and environmental characteristics.

Results: The mean number of mother-reported asthma-like attacks significantly decreased as children aged. The likelihood of being perceived in a poorer health status also decreased across time. Concurrent poverty was associated with more mother-reported asthma-like attacks and with a higher risk of being perceived in poorer health status. One-period-lagged poverty was associated with more mother-reported asthma-like attacks and this remained significant after controlling for concurrent poverty. The number of mother-reported asthma-like attacks was significantly higher among children in the chronic poverty class compared to those in the never-poor class, particularly at 17 and 29 months. Perceived health status at 5-months was significantly poorer among chronically poor children compared to never-poor children.

Conclusion: Exposure to poverty negatively affects two major health indicators in early childhood - maternal perception of child health and mother-reported asthma-like attacks. Patterns of the effects vary according to timing and duration of poverty exposure. Further longitudinal research is warranted to disentangle time-specific from cumulative effects of poverty on child health.

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Expected mean number of mother-reported asthma-like attacks per year, as a function of poverty latent class membership. Weighted estimates from multilevel Poisson regressions with 1825 children, (QLSCD, 1998-2008).
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Figure 1: Expected mean number of mother-reported asthma-like attacks per year, as a function of poverty latent class membership. Weighted estimates from multilevel Poisson regressions with 1825 children, (QLSCD, 1998-2008).

Mentions: Adjusted models for the effects of concurrent, previous-period, and cumulative poverty are summarized in Tables 3 and4 and in Figures 1 and2. Tables 3 and4 indicate that the mean number of mother-reported asthma-like attacks decreased as children aged. The likelihood of a mother perceiving her child as being in less than very good health was higher in the second survey round (17 months of age) compared to the initial round (5 months).


Longitudinal patterns of poverty and health in early childhood: exploring the influence of concurrent, previous, and cumulative poverty on child health outcomes.

Béatrice N, Lise G, Victoria ZM, Louise S - BMC Pediatr (2012)

Expected mean number of mother-reported asthma-like attacks per year, as a function of poverty latent class membership. Weighted estimates from multilevel Poisson regressions with 1825 children, (QLSCD, 1998-2008).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3539903&req=5

Figure 1: Expected mean number of mother-reported asthma-like attacks per year, as a function of poverty latent class membership. Weighted estimates from multilevel Poisson regressions with 1825 children, (QLSCD, 1998-2008).
Mentions: Adjusted models for the effects of concurrent, previous-period, and cumulative poverty are summarized in Tables 3 and4 and in Figures 1 and2. Tables 3 and4 indicate that the mean number of mother-reported asthma-like attacks decreased as children aged. The likelihood of a mother perceiving her child as being in less than very good health was higher in the second survey round (17 months of age) compared to the initial round (5 months).

Bottom Line: The mean number of mother-reported asthma-like attacks significantly decreased as children aged.Perceived health status at 5-months was significantly poorer among chronically poor children compared to never-poor children.Further longitudinal research is warranted to disentangle time-specific from cumulative effects of poverty on child health.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Social and Preventive Medicine, Université de Montreal, Montreal, Quebec, Canada. b.nikiema@umontreal.ca

ABSTRACT

Background: Although the links between poverty and health have often been studied , the dynamics of poverty and physical health in early childhood remain under-investigated. In particular, it is not known whether the health of young children is affected differently from that of adults by patterns of poverty unique to them.

Methods: We examined patterns of health from 5 to 41 months of age as a function of concurrent, lagged, and chronic exposure to insufficient income. Using data from the first four rounds of the Quebec Longitudinal Study of Child Development, we performed multilevel logistic and multilevel Poisson regressions and latent growth curve analyses to explore associations between exposure to poverty and mother-reported asthma-like attacks, and maternal perception of health status controlling for neonatal, maternal, and environmental characteristics.

Results: The mean number of mother-reported asthma-like attacks significantly decreased as children aged. The likelihood of being perceived in a poorer health status also decreased across time. Concurrent poverty was associated with more mother-reported asthma-like attacks and with a higher risk of being perceived in poorer health status. One-period-lagged poverty was associated with more mother-reported asthma-like attacks and this remained significant after controlling for concurrent poverty. The number of mother-reported asthma-like attacks was significantly higher among children in the chronic poverty class compared to those in the never-poor class, particularly at 17 and 29 months. Perceived health status at 5-months was significantly poorer among chronically poor children compared to never-poor children.

Conclusion: Exposure to poverty negatively affects two major health indicators in early childhood - maternal perception of child health and mother-reported asthma-like attacks. Patterns of the effects vary according to timing and duration of poverty exposure. Further longitudinal research is warranted to disentangle time-specific from cumulative effects of poverty on child health.

Show MeSH
Related in: MedlinePlus