Home > Publications . Search All . Browse All . Country . Browse PSC Pubs . PSC Report Series

PSC In The News

RSS Feed icon

Shaefer and Edin's book ($2 a Day) cited in piece on political debate over plight of impoverished Americans

Eisenberg tracks factors affecting both mental health and athletic/academic performance among college athletes

Shapiro says Americans' low spending reflects "cruel lesson" about the dangers of debt

Highlights

Susan Murphy elected to the National Academy of Sciences

Maggie Levenstein named director of ISR's Inter-university Consortium for Political and Social Research

Arline Geronimus receives 2016 Harold R. Johnson Diversity Service Award

PSC spring 2016 newsletter: Kristin Seefeldt, Brady West, newly funded projects, ISR Runs for Bob, and more

Next Brown Bag

PSC Brown Bags
will resume fall 2016

A varying-coefficient cox model for the effect of age at a marker event on age at menopause

Publication Abstract

Nan, B., X.H. Lin, L.D. Lisabeth, and Sioban D. Harlow. 2005. "A varying-coefficient cox model for the effect of age at a marker event on age at menopause." Biometrics, 61(2): 576-583.

It is of recent interest in reproductive health research to investigate the validity of a marker event for the onset of menopausal transition and to estimate age at menopause using age at the marker event. We propose a varying-coefficient Cox model to investigate the association between age at a marker event., defined as a specific bleeding pattern change, and age at menopause, where both events are subject to censoring and their association varies with age at the marker event. Estimation proceeds using the regression spline method. The proposed method is applied to the Tremin Trust data to evaluate the association between age at onset of the 60-day menstrual cycle and age at menopause. The performance of the proposed method is evaluated using a simulation study.

DOI:10.1111/j.1541-0420.2005.030905.x. (Full Text)

PMCID: PMC1421379. (Pub Med Central)

Country of focus: United States of America.

Browse | Search : All Pubs | Next