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Table 1 Characteristics of all participants and farm pesticide applicators in the Upper Midwest Health Study

From: The upper midwest health study: a case–control study of pesticide applicators and risk of glioma

 

All participants

  

Farm Pesticide Applicators

 

Including proxy respondents

Excluding proxy respondents

Including proxy respondents

Excluding proxy respondents

Characteristic

Cases

Controls

Cases

Controls

Cases

Controls

Cases

Controls

 

(n = 798)

(n = 1,175)

(n = 438)

(n = 1,141)

(n = 228)

(n = 417)

(n = 125)

(n = 408)

Agea Mean (S.D.)

51.8 (16.1)

54.6 (15.4)

45.4 (15.3)

54.2 (15.4)

54.2 (14.1)

57.3 (13.7)

49.6 (13.5)

57.0 (13.6)

Sex

        

Male

457 (57 %)

648 (55 %)

242 (55 %)

625 (55 %)

137 (60 %)

268 (64 %)

75 (60 %)

263 (64 %)

Female

341 (43 %)

527 (45 %)

196 (45 %)

516 (45 %)

91 (40 %)

149 (36 %)

50 (40 %)

145 (36 %)

Race

        

White

783 (98 %)

1,152 (98 %)

429 (98 %)

1,119 (98 %)

228 (100 %)

415 (99.5 %)

125 (100 %)

406 (99.5 %)

Non-White

15 (2 %)

23 (2 %)

9 (2 %)

22 (2 %)

0 (0 %)

2 (0.5 %)

0 (0 %)

2 (0.5 %)

State of Residence

        

I owa

190 (24 %)

302 (26 %)

101 (23 %)

284 (25 %)

64 (28 %)

121 (29 %)

34 (27 %)

115 (28 %)

Michigan

246 (31 %)

298 (25 %)

133 (30 %)

292 (26 %)

42 (18 %)

75 (18 %)

23 (18 %)

74 (18 %)

Minnesota

163 (20 %)

257 (22 %)

96 (22 %)

252 (22 %)

51 (22 %)

101 (24 %)

29 (23 %)

100 (25 %)

Wisconsin

199 (25 %)

318 (27 %)

108 (25 %)

313 (27 %)

71 (31 %)

120 (29 %)

39 (31 %)

119 (29 %)

Educationb

        

College Graduate

132 (17 %)

200 (17 %)

89 (20 %)

198 (17 %)

32 (14 %)

44 (11 %)

22 (18 %)

44 (11 %)

High School Graduate

523 (66 %)

768 (65 %)

303 (69 %)

752 (66 %)

130 (57 %)

272 (65 %)

82 (66 %)

267 (65 %)

<12 Years

143 (18 %)

207 (18 %)

46 (11 %)

191 (17 %)

66 (29 %)

101 (24 %)

21 (17 %)

97 (24 %)

  1. aAge on January 1, 1993. Eligibility requirement was age > 18 at time of diagnosis or control selection.
  2. bOne control with unknown education was assigned with ‘High School Graduate’.