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. Author manuscript; available in PMC: 2013 Sep 16.
Published in final edited form as: J Toxicol Environ Health A. 2013;76(13):10.1080/15287394.2013.819308. doi: 10.1080/15287394.2013.819308

Table 1.

General characteristics of 51,603 male pesticide applicators by stroke mortality outcome, Agricultural Health Study, 1993–2008.a

Casesb Noncasesc Person Time Incidence Rate Ratiod 95% Confidence Interval

(N = 308) % (N = 51,295) %
Site
 NC 194 63 16591 32 218426 1
 Iowa 114 37 34704 68 457408 0.43 0.34 0.55
Smoking status
 Never 116 38 27230 53 362046 1
 Past 135 44 15530 30 201973 1.21 0.94 1.55
 Current 57 19 8535 17 111815 2.37 1.72 3.27
Age (years)
 <50 27 9 31983 62 431181 1
 50–59 50 16 10356 20 135751 5.88 3.69 9.39
 60–69 120 39 6818 13 85287 22.48 14.81 34.12
 70+ 111 36 2138 4 23645 75.00 49.23 114.17
Race/Ethnicity
 White, non-Hispanic 295 96 49607 97 653862 1
 Other 12 4 1606 3 20934 1.07 0.60 1.91
Education
 High school of less 207 69 28493 57 372228 1
 Beyond high school 91 31 21663 43 288718 1.07 0.83 1.37
BMI (kg/m2)
 <25 80 36 9573 26 127407 1
 25–29.9 102 46 19105 51 253118 0.64 0.50 0.82
 >=30 38 17 8745 23 115694 0.63 0.44 0.89
Drinks per month at enrollment
 None 184 60 16450 32 214040 1
 1–4 63 20 13917 27 184014 0.72 0.54 0.96
 5–30 36 12 13727 27 182045 0.57 0.39 0.80
 >30 25 8 7201 14 95735 0.80 0.52 1.22
Heart disease
 No 236 81 47750 95 632603 1
 Yes 55 19 2590 5 30975 1.41 1.04 1.90
Diabetes
 No 242 84 48897 97 645814 1
 Yes 46 16 1419 3 17438 3.11 2.26 4.27
Hypertensione
 No 91 59 19029 84 254169 1
 Yes 62 41 3665 16 46840 1.74 1.25 2.42
a

Data not available for all participants due to missing values in some categories.

b

Cases are defined as deaths with an underlying or contributing cause attributed to stroke on state death certificates by using

International Classification of Diseases, Tenth Revision, codes I60-I69.

c

Non-cases are participants who did not experience a stroke-related death during study follow-up.

d

Adjusted for age in categories.

e

The hypertension question asked on the take-home questionnaire was answered by 23,170 participants (161 stroke deaths).