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Fig. 1 | BMC Public Health

Fig. 1

From: Information bias of social gradients in sickness absence: a comparison of self-report data in the Norwegian Mother and Child Cohort Study (MoBa) and data in national registries

Fig. 1

Flow chart of mothers participating in study of educational gradient in sickness absence. Green frame: register data; red frame: self-report data. Exclusions: Education, register data: 15 mothers with missing data. Education, self-report: 4207 mothers because they did not take part in Questionnaire 1 (N = 2149) or did not provide valid education level answer (Q50; N = 2058). Sickness absence, register data: 8555 missed dates for gestational week 13 or Questionnaire 3 completion, another 2392 had missed information on employment in FD-Trygd, another 20% (7866/41082) had no registry-based employment or self-employment between pregnancy start and Questionnaire 3 completion. Sickness absence, self-report: 4956 did not fill out Questionnaire 3, another 3317 responded to questionnaire version A that did not include duration of sickness absence (Q75), another 7% (3026/41364) did not report job in pregnancy (Q61)

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BMC Public Health

ISSN: 1471-2458

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