Lifetime sexual violence and childbirth expectations – A Norwegian population based cohort study

ObjectivesWith the present study, we aimed to investigate the association between menopausal hormone therapy (HT) and risk of colorectal cancer (CRC).SettingCohort study based on the linkage of Norwegian population-based registries.ParticipantsWe selected 466822 Norwegian women, aged 55–79, alive and residing in Norway as of 1 January 2004, and we followed them from 2004 to 2008. Each woman contributed person-years at risk as non-user, current user and/or past HT user.Outcome measuresThe outcome of interest was adenocarcinoma of the colorectal tract, overall, by anatomic site and stage at diagnosis. Incidence rate ratios (RRs) with 95% CIs were estimated by Poisson regression and were used to evaluate the association between HT and CRC incidence.ResultsDuring the median follow-up of 4.8 years, 138 655 (30%) women received HT and 3799 (0.8%) incident CRCs occurred. Current, but not past, use of HT was associated with a lower risk of CRC (RR 0.88; 95% CI 0.80 to 0.98). RRs for localised, regionally advanced and metastatic CRC were 1.13 (95% CI 0.91 to 1.41), 0.81 (95% CI 0.70 to 0.94) and 0.79 (95% CI 0.62 to 1.00), respectively. RRs for current use of oestrogen therapy (ET) were 0.91 (95% CI 0.80 to 1.04) while RR for current use of combined oestrogen–progestin therapy (EPT) was 0.85 (95% CI 0.70 to 1.03), as compared with no use of HT. The same figures for ET and EPT in oral formulations were 0.83 (95% CI 0.68 to 1.03) and 0.86 (95% CI 0.71 to 1.05), respectively.ConclusionsIn our nationwide cohort study, HT use lowered the risk of CRC, specifically the most advanced CRC.

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Sexual violence and mode of delivery: a population-based cohort study

BJOG An International Journal of Obstetrics & Gynaecology ◽

10.1111/1471-0528.12923 ◽

2014 ◽

Vol 121 (10) ◽

pp. 1237-1244 ◽

Cited By ~ 8

Author(s):

L Henriksen ◽

B Schei ◽

S Vangen ◽

M Lukasse

Keyword(s):

Cohort Study ◽

Sexual Violence ◽

Mode Of Delivery ◽

Population Based

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Physical activity and cutaneous melanoma risk: A Norwegian population-based cohort study

Preventive Medicine ◽

10.1016/j.ypmed.2021.106556 ◽

2021 ◽

pp. 106556

Author(s):

Flavie Perrier ◽

Reza Ghiasvand ◽

Simon Lergenmuller ◽

Trude E. Robsahm ◽

Adele C. Green ◽

...

Keyword(s):

Physical Activity ◽

Cohort Study ◽

Cutaneous Melanoma ◽

Population Based ◽

Melanoma Risk ◽

Norwegian Population

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Increased uptake of social security benefits among long-term survivors of cancer in childhood, adolescence and young adulthood: a Norwegian population-based cohort study

British Journal of Cancer ◽

10.1038/bjc.2013.107 ◽

2013 ◽

Vol 108 (7) ◽

pp. 1525-1533 ◽

Cited By ~ 10

Author(s):

S Ghaderi ◽

A Engeland ◽

D Moster ◽

E Ruud ◽

A Syse ◽

...

Keyword(s):

Cohort Study ◽

Social Security ◽

Young Adulthood ◽

Population Based ◽

Norwegian Population ◽

Adolescence And Young Adulthood ◽

Social Security Benefits ◽

Long Term Survivors

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Sexual violence and neonatal outcomes: a Norwegian population-based cohort study

BMJ Open ◽

10.1136/bmjopen-2014-005935 ◽

2014 ◽

Vol 4 (10) ◽

pp. e005935 ◽

Cited By ~ 4

Author(s):

Lena Henriksen ◽

Berit Schei ◽

Siri Vangen ◽

Mirjam Lukasse

Keyword(s):

Cohort Study ◽

Birth Weight ◽

Sexual Violence ◽

Gestational Age ◽

Population Based ◽

Neonatal Outcomes ◽

Gestational Length ◽

Birth Registry ◽

Maternal Characteristics ◽

Behavioural Factors

ObjectiveThe objective of this study was to explore the association between sexual violence and neonatal outcomes.DesignNational cohort study.SettingWomen were recruited to the Norwegian Mother and Child Cohort Study (MoBa) while attending routine ultrasound examinations from 1999 to 2008.PopulationA total of 76 870 pregnant women.MethodsSexual violence and maternal characteristics were self-reported in postal questionnaires during pregnancy. Neonatal outcomes were retrieved from the Medical Birth Registry of Norway (MBRN). Risk estimations were performed with linear and logistic regression analysis. Outcome measures: gestational age at birth, birth weight, preterm birth (PTB), low birth weight (LBW) and small for gestational age (SGA).ResultsOf 76 870 women, 18.4% reported a history of sexual violence. A total of 4.7% delivered prematurely, 2.7% had children with a birth weight <2500 g and 8.1% children were small for their gestational age. Women reporting moderate or severe sexual violence (rape) had a significantly reduced gestational length (2 days) when the birth was provider-initiated in an analysis adjusted for age, parity, education, smoking, body mass index and mental distress. Those exposed to severe sexual violence had a significantly reduced gestational length of 0.51 days with a spontaneous start of birth. Crude estimates showed that severe sexual violence was associated with PTB, LBW and SGA. When controlling for the aforementioned sociodemographic and behavioural factors, the association was no longer significant.ConclusionsSexual violence was not associated with adverse neonatal outcomes. Moderate and severe violence had a small but significant effect on gestational age; however, the clinical influence of this finding is most likely limited. Women exposed to sexual violence in this study reported more of the sociodemographic and behavioural factors associated with PTB, LBW and SGA compared with non-abused women.

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