Long work hours is associated with suboptimal glycemic control among US workers with diabetes.
BACKGROUND
Increasing numbers of US workers are diabetic. We assessed the relationship between glycemic control and work hours and type of occupation among employed US adults with type 2 diabetes.


METHODS
Data were obtained from the 1999-2004 National Health and Nutrition Examination Survey (NHANES). A representative sample of employed US adults ≥20 years with self-reported type 2 diabetes (n = 369) was used. Two dichotomous glycemic control indicators, based on various HbA1c level cut-points, were used as dependent variables in weighted logistic regression analyses with adjustment for confounders.


RESULTS
Adults working over 40 hr/week were more likely to have suboptimal glycemic control (HbA1c ≥ 7%) compared to those working 20 hr or less (odds ratio = 5.09; 95% confidence interval: [1.38-18.76]).


CONCLUSIONS
Work-related factors, such as number of hours worked, may affect the ability of adults with type 2 diabetes to reach and maintain glycemic control goals. These factors should be considered in the development of workplace policies and accommodations for the increasing number of workers with type 2 diabetes.
Department of Epidemiology and Public Health, University of Miami Miller School of Medicine, Florida 33136, USA. iyl7@cdc.gov
Evelyn P
EP
Davila
Hermes
H
Florez
Mary Jo
MJ
Trepka
Lora E
LE
Fleming
Theophile
T
Niyonsenga
David J
DJ
Lee
Jai
J
Parkash
D000328:Adult; D000368:Aged; D001786:Blood Glucose / Q000032:analysis*; D016001:Confidence Intervals; D003430:Cross-Sectional Studies; D003924:Diabetes Mellitus, Type 2 / Q000097:blood* / Q000517:prevention & control / Q000523:psychology*; D005260:Female; D006442:Glycated Hemoglobin / Q000032:analysis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009749:Nutrition Surveys; D016273:Occupational Exposure / Q000009:adverse effects*; D016017:Odds Ratio; D013315:Stress, Psychological; D013997:Time Factors; D014481:United States; D016526:Workload; D017132:Workplace; D055815:Young Adult
D001786:Blood Glucose; D006442:Glycated Hemoglobin
Arch Intern Med. 2007 Jul 23;167(14):1545-51
17646610
Health Rep. 1999 Autumn;11(2):33-48(Eng); 37-55(Fre)
10618741
Community Dent Oral Epidemiol. 2002 Jun;30(3):182-92
12000341
Diabetes Care. 2007 Jan;30 Suppl 1:S4-S41
17192377
JAMA. 2004 Jan 21;291(3):335-42
14734596
Am J Public Health. 1994 Feb;84(2):320-1
8296968
Ann Epidemiol. 2008 Mar;18(3):222-9
18201902
Diabetes Educ. 2007 Jun;33 Suppl 6:172S-178S
17620398
J Nutr. 1989 Mar;119(3):333-43
2646400
Diabetes Educ. 2000 Mar-Apr;26(2):272-9
10865592
Diabetes Care. 2008 Jan;31(1):81-6
17934153
Scand J Work Environ Health. 2004 Apr;30(2):85-128
15127782
Prev Med. 1997 Sep-Oct;26(5 Pt 1):734-44
9327484
Chronobiol Int. 2009 May;26(4):740-55
19444753
Patient Educ Couns. 2005 Oct;59(1):87-96
16198222
Diabetes Care. 2007 Feb;30(2):245-51
17259489
Diabetes Care. 2004 May;27 Suppl 2:B82-9
15113788
Lancet. 1997 Jul 26;350(9073):235-9
9242799
Annu Rev Public Health. 1994;15:381-411
8054091
Psychosom Med. 1993 Jul-Aug;55(4):380-93
8105502
Hypertension. 2006 Oct;48(4):744-50
16940208
J Am Geriatr Soc. 2005 Jul;53(7):1214-6
16108941
J Occup Environ Med. 2005 Jan;47(1):79-90
15643162
Int J Clin Pract. 2006 Sep;60(9):1138-45
16939559
Diabetes Educ. 2000 Jul-Aug;26(4):656-66
11140074
Diabetes Care. 1999 Apr;22(4):569-74
10189533
BMC Health Serv Res. 2008 Feb 04;8:33
18248673
Int J Health Serv. 2005;35(2):213-36
15932004
Proc Natl Acad Sci U S A. 2001 Apr 10;98(8):4770-5
11287659
Diabetes Care. 2003 Jan;26 Suppl 1:S5-20
12502614
J Clin Epidemiol. 2003 Feb;56(2):148-54
12654409
Ind Health. 2006 Oct;44(4):531-6
17085913
Annu Rev Public Health. 2007;28:345-63
17291182
J Behav Med. 1995 Apr;18(2):97-111
7563047
Diabetes Care. 2002 Jan;25(1):30-4
11772897