Studies of Other Agricultural Workers, 731

 

United Farm Workers, 731

 

Upper Midwest Health Study, 731

 

Studies of Forestry Workers, 736

 

Studies of Herbicide–Pesticide Applicators, 736

 

PAPER AND PULP WORKERS

740

CASE–CONTROL STUDIES

741

TABLE C-1 Epidemiologic Studies—Occupational Exposure

Reference

Study Design

Description

Study Group (n)

Comparison Group (n)a

PRODUCTION WORKERS

NIOSH Studies Reviewed in Update 2006

Lawson et al., 2004

Cohort

Follow-on of NIOSH cross-sectional medical study (Sweeny et al., 1989, 1993); examined reproductive endpoints, in terms of exposure to TCDD at the time of conception estimated by pharmacokinetic model, in wives of chemical workers vs. referent neighbors

176 workers wives with 513 births

217 referent wives with 604 births

NIOSH Studies Reviewed in Update 2002

Steenland et al., 2001

Cohort

Reexamination and comparison of diabetes data from the NIOSH cohort and the AFHS; reconciled differences between study methods and protocols

267 NIOSH workers; 990 Ranch Hand subjects

227 NIOSH comparisons; 1,275 AFHS comparisons

NIOSH Studies Reviewed in Update 2000

Calvert et al., 1999

Cohort

Follow-up of workers employed more than 15 years at 2 plants that manufactured substances contaminated with TCDD; evaluated associations between serum TCDD and serum glucose (diabetes), TSH, total T4, T3

281

260



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