Mortality and gestational age by external cause of death.

<p>Nation-wide cohort born in Norway 1967–1997.</p

Mortality and gestational age by cause of death.

<p>Nation-wide cohort born in Norway 1967–1997. Analyses stratified by age at death.</p

All-cause mortality and main categories of mortality risks (adjusted Hazard Ratios with 95% Confidence Intervals) according to gestational age at birth (completed weeks), in population (upper row) and sibling cohorts (lower row).

<p>Nation-wide cohort born in Norway 1967–1997.</p

Baseline characteristics of a nationwide population cohort and a sibling based study born in Norway 1967–1997.

<p>Baseline characteristics of a nationwide population cohort and a sibling based study born in Norway 1967–1997.</p

Job related income in 2006.

<p>Low income: income in the lower age-specific quartile. High income: income in the upper age-specific quartile. Income: Percent difference in median income between individuals with and without clefts. All RRs and differences in median s are adjusted for parental education, birth year (categorical), immigration status, and maternal marital status.</p

Parental status and marital status.

<p>Parental status and marital status: n = 1 333 171 (CLO: 650. CLP: 816. CPO: 611). Parent if married: n = 434 255 (CLO: 187. CLP: 217. CPO: 173). All RRs are adjusted for parental education, birth year (categorical), immigration status, and maternal marital status.</p

Characteristics and descriptive statistics for study cohort.

<p>Characteristics and descriptive statistics for study cohort.</p

Type of occupation in 2010.

<p>Manual: Characterized by less responsibility, autonomy and authority (e.g., hairdressers, carpenters, nurse’s aides, cooks, shop assistants, and maids). Professional: Characterized by more responsibility, autonomy or authority (e.g., nurses, lawyers, CEOs, teachers, researchers, and engineers). All RRs are adjusted for parental education, birth year (categorical), immigration status, and maternal marital status.</p

Education attained at ages 17, 21 and 25.

<p>Basic: n = 1 333 171 (CLO: 650. CLP: 816. CPO: 611). Intermediate: n = 1 227 480 (CLO: 605. CLP: 763. CPO: 558). University: n = 1 024 482 (CLO: 498. CLP: 659. CPO: 444). All RRs are adjusted for parental education, birth year (categorical), immigration status, maternal marital status.</p

Flowchart describing the selection process of the study population.

<p>Flowchart describing the selection process of the study population.</p