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Economic difficulties and subsequent sleep problems: evidence from British and Finnish occupational cohorts.

ABSTRACT: BACKGROUND:Social determinants of sleep may prove to be as important as health status. In this study we examined the extent to which persistent and changing economic difficulties are associated with sleep problems in two prospective occupational cohorts. METHODS:We used data from Finnish (baseline 2000-2002; follow-up 2007; n=6328) and British (baseline 1997-1999; follow-up 2003-2004; n=5002) public sector employees. Economic difficulties, sleep problems, and a variety of covariates were assessed at baseline and follow-up. RESULTS:Prevalence of frequent sleep problems at follow-up was 27% and 20% among women and men in the Finnish cohort, and 34% and 27% in the British cohort, respectively. Odds for sleep problems were higher among those with persistent economic difficulties (frequent economic difficulties at baseline and follow-up) compared to those with no difficulties. This association remained after multiple adjustments, including parental and current socioeconomic position, in the Finnish (OR 1.72, 95% CI 1.35-2.18) cohort. Increases in economic difficulties were similarly associated with sleep problems in the Finnish and the British cohort. CONCLUSION:Evidence from two occupational cohorts suggests strong associations between economic difficulty and poor sleep. Awareness of this association will help health care professionals identify and prevent sleep problems.

SUBMITTER: Lallukka T

PROVIDER: S-EPMC3382711 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature

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Economic difficulties and subsequent sleep problems: evidence from British and Finnish occupational cohorts.

Lallukka Tea T Ferrie Jane E JE Kivimäki Mika M Shipley Martin J MJ Rahkonen Ossi O Lahelma Eero E

Sleep medicine 20120323 6

<h4>Background</h4>Social determinants of sleep may prove to be as important as health status. In this study we examined the extent to which persistent and changing economic difficulties are associated with sleep problems in two prospective occupational cohorts.<h4>Methods</h4>We used data from Finnish (baseline 2000-2002; follow-up 2007; n=6328) and British (baseline 1997-1999; follow-up 2003-2004; n=5002) public sector employees. Economic difficulties, sleep problems, and a variety of covariat ...[more]

PMID: 22445231

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Project description:BackgroundSleep problems show associations with negative outcomes in both physical and mental health in adolescents, but the associations may be reciprocal. We aimed to assess bidirectional associations between sleep problems and mental health symptoms including behavioural difficulties (internalising and externalising difficulties) and low health-related quality of life (HRQoL).MethodsA total of 6616 adolescents (52.4% females) across Greater London completed baseline assessments when they were aged 11-12 years, and 3803 of them (57.2% females) completed follow-up assessments at aged 13-15 years. Weekday and weekend sleep duration were derived from self-reported bedtime, sleep onset latency and wake time. Sleep disturbance was assessed using a standardized sleep disturbance scale. Internalising and externalising difficulties were assessed using subscales of the Strength and Difficulties Questionnaire. HRQoL was assessed using the KIDSCREEN-10 questionnaire. Cross-lagged structural equation modelling was used with multiple imputation to examine bidirectional associations between sleep problems and mental health symptoms.ResultsFemales had greater internalising difficulties, worse HRQoL and more sleep disturbance than males. Persistent insufficient weekday and weekend sleep, and sleep disturbance (i.e., at both baseline and follow-up) were associated with internalising and externalising difficulties and low HRQoL at follow-up (ORs ranged from 1.53 to 3.63). Persistent externalising difficulties and low HRQoL were also associated with insufficient weekend sleep and sleep disturbance at follow-up (ORs ranged from 1.68 to 4.25). Using continuous variables, we found bidirectional associations between weekday sleep duration and HRQoL, weekend sleep duration and externalising score, sleep quality and internalising score, and sleep quality and HRQoL. The association magnitudes were mostly similar in the two directions.ConclusionsOur study showed bidirectional associations between sleep problems and mental health symptoms during adolescence, indicating that early intervention and treatment on the first-occurring symptom may prevent the development of subsequent problems.

Project description:BackgroundSleep and colic problems in infancy have been linked to adverse health outcome, but there is limited knowledge of the association between sleep and colic problems in infancy and subsequent development, emotional and behavior problems in young children. The aim of the present study was to examine whether there is an associations between infants' crying and sleep problems at 6 months and behavioral and development problems at 18 months, 3 and 5 years.MethodsThis study is based on the Norwegian Mother, Father and Child Cohort Study (MoBa), conducted at the Norwegian Institute of Public Health from June 1999 to December 2008. A total of 86,724 children were included. Colic and sleep (sleep duration, nocturnal awakenings and easy to put to bed) was assessed by mother-reports. Z-scores were used to assess differences between groups of children (e.g. having colic or not, having a sleep problem or not). Emotional and behavioral problems were measured with items from the Child Behavior Checklist. Development problems were measured with items from The Ages and Stages Questionnaire.ResultsInfants with colic scored significantly lower on development at 5 years (B=-0.10, CI [- 0.14 to - 0.06]) and higher on internalizing problems both at 3 years (B=0.15. CI [0.11 to 0.18]) and 5 years (B=0.17. CI [0.12 to 0.21]) than the reference population. Children who awoke frequently and were more difficult to put to bed at 6 months scored significantly lower on development at 18 months and 3 and 5 years, and higher on internalizing behavior problems at 3 and 5 years (B=0.18 and B=0.16). Children with shorter sleep duration at 6 months had more internalizing behavior problems at 3 years (B=0.14. CI [0.07 to 0.21]) and 5 years (B=0.15. CI [0.05 to 0.25]) than the reference population.ConclusionsColic and sleep problems early in life should be taken into account as risk factors for development and behavioral problems within the first 5 years of a child's life.

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Economic difficulties and subsequent sleep problems: evidence from British and Finnish occupational cohorts.

Publications

Economic difficulties and subsequent sleep problems: evidence from British and Finnish occupational cohorts.

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