Delaware Chapter, ASA

Dinner Meeting: Feburary 2002


Speakers:
Geraldine M. Lee
Epidemiology
Quantitative Decision Sciences
AstraZeneca

Environmental Health Investigations Branch
California Department of Health Services
Oakland, California
 

Raymond R. Neutra
Environmental Health Investigations Branch
California Department of Health Services
Oakland, California
 
Lilia Hristova
Environmental Health Investigations Branch
California Department of Health Services
Oakland, California
 
Michael Yost
Department of Environmental Health
University of Washington
Seattle, Washington
 
Robert A. Hiatt
Division of Cancer Control and Population Sciences
National Cancer Institute
Bethesda, Maryland
 
Topic: A Nested Case-Control Study of Residential and Personal Magnetic Field Measures and Miscarriages:

Abstract:

We conducted a nested case (n=177) control (n=550) study to assess the relationship between retrospective magnetic field measures and clinical miscarriage. We also conducted a prospective sub-study of 219 participants of the same parent cohort to determine if prospective exposure assessments were similar to the retrospective assessments. We evaluated wire codes, area measures and three personal meter metrics: 1) the average difference between consecutive levels (a rate of change metric, RCM); 2) the maximum level; 3) the time weighted average (TWA).

For wire codes and area measures we found little association. For the personal metrics we found positive associations. Adjusted odds ratios and 95% confidence intervals comparing higher to the lowest exposure quartile were, respectively: 3.1 (1.6-6.0), 2.3 (1.2-4.4), and 1.5 (0.8-3.1) for the RCM; 2.3 (1.2-4.4), 1.9 (1.0-3.5), and 1.4 (0.7-2.8) for the maximum value; and 1.7 (0.9-3.3), 1.7 (0.9-3.3), and 1.7 (0.9-3.3) for the TWA. The odds ratio conveyed by being above a 24 hr TWA of 2 mG was 1.0 (0.5-2.1). Prospective and retrospective measures were poorly correlated. Nonetheless, the prospective sub-study results were consistent with the nested study results. One should confirm these findings and identify exposure sources for these metrics.

Date: Thursday, Feburary 21, 2002
 
Time:

Social hour -- 6:00 pm
Dinner -- 6:30 pm
Speaker -- 7:15 pm
 
Place:

Newark Holiday Inn
Oliver's Restaurant map
 
Menu:

Appetizer: Soup du Jour
Salad: Caesar Salad
Entree: Baked Crab Imperial
Dessert: Pie

If you desire a vegetarian meal, please so indicate in your RSVP.
 

Cost:

$25 for members, $10 for students

Reservations to Stephen Bingham by Monday, February 18, 2002.
410-642-2411, ext 5301,  or to Stephen Bingham.

Please note: Be sure to RSVP by this date, to assure a meal is reserved for you.

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