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Table 1 Selected Characteristics of Study Participants

From: Polymorphisms in NF-κB Inhibitors and Risk of Epithelial Ovarian Cancer

  

Mayo Clinic

 

Duke University

 
  

Cases (N = 396)

Controls (N = 469)

p-value

Cases (N = 534)

Controls (N = 568)

p-value

Age

Mean (S.D.) yrs

59.8 (13.3)

60.1 (13.0)

0.82

54 (11.5)

54.7 (12.2)

0.35

Race

White

385 (97.2)

462 (98.5)

0.73

444 (83.3)

479 (84.3)

0.77

 

African American

3 (0.8)

2 (0.4)

 

70 (13.1)

74 (13.0)

 
 

Asian

2 (0.5)

1 (0.2)

 

6 (1.1)

2 (0.4)

 
 

Hispanic

3 (0.8)

3 (0.6)

 

5 (0.9)

5 (0.9)

 
 

Native American

0 (0.0)

0 (0.0)

 

5 (0.9)

6 (1.1)

 
 

Other

3 (0.8)

1 (0.2)

 

3 (0.6)

2 (0.4)

 

Body mass index

< 23 kg/m2

79 (20.7)

110 (25.1)

0.02

132 (25.4)

139 (25.2)

0.29

 

23–26 kg/m2

88 (23.1)

121 (27.6)

 

117 (22.5)

124 (22.5)

 
 

26–29 kg/m2

98 (25.7)

112 (25.6)

 

106 (20.4)

136 (24.7)

 
 

≥ 29 kg/m2

116 (30.4)

95 (21.7)

 

165 (31.7)

152 (27.6)

 

Age at menarche

< 12 yrs

55 (18.7)

68 (15.8)

0.46

130 (24.4)

118 (20.8)

0.44

 

12 yrs

77 (26.2)

100 (23.2)

 

153 (28.8)

166 (29.2)

 
 

13 yrs

79 (26.9)

126 (29.2)

 

134 (25.2)

161 (28.3)

 
 

≥ 14 yrs

83 (28.2)

137 (31.8)

 

115 (21.6)

123 (21.7)

 

Oral contraceptive use

Never

176 (47.6)

166 (38.4)

< 0.001

182 (34.7)

181 (32.2)

0.36

 

1–48 months

98 (26.5)

92 (21.3)

 

158 (30.2)

160 (28.5)

 
 

≥ 48 months

96 (25.9)

174 (40.3)

 

184 (35.1)

221 (39.3)

 

Postmenopausal

Yes

266 (70.2)

333 (75.3)

0.10

354 (71.7)

372 (67)

0.11

 

No

113 (29.8)

109 (24.7)

 

140 (28.3)

183 (33)

 

Postmenopausal hormone use

Never

240 (63.8)

248 (58.6)

0.31

196 (37.7)

349 (63)

< 0.001

 

1–60 months

64 (17)

80 (18.9)

 

207 (39.8)

109 (19.7)

 
 

≥ 60 months

72 (19.1)

95 (22.5)

 

117 (22.5)

96 (17.3)

 

Parity, n/Age at first birth, yrs

Nulliparous

70 (18.3)

66 (15)

0.07

113 (21.2)

73 (12.9)

0.003

 

1–2/≤ 20 yrs

29 (7.6)

25 (5.7)

 

73 (13.7)

69 (12.1)

 
 

1–2/> 20 yrs

103 (26.9)

131 (29.8)

 

193 (36.2)

233 (41)

 
 

≥ 3/≤ 20 yrs

73 (19.1)

64 (14.5)

 

81 (15.2)

93 (16.4)

 
 

≥ 3/> 20 yrs

108 (28.2)

154 (35)

 

73 (13.7)

100 (17.6)

 

Ovarian cancer family history

Yes

51 (13.3)

33 (7.4)

0.01

42 (7.9)

25 (4.4)

0.02

 

No

333 (86.7)

411 (92.6)

 

492 (92.1)

543 (95.6)

 

Ovarian or breast cancer family history

Yes

167 (43.5)

189 (42.6)

0.79

196 (36.7)

190 (33.5)

0.26

 

No

217 (56.5)

255 (57.4)

 

338 (63.3)

378 (66.5)

 

Smoking, pack years

None

233 (64.9)

285 (68.3)

0.29

297 (57.6)

291 (53.5)

0.41

 

<= 20

71 (19.8)

84 (20.1)

 

130 (25.2)

148 (27.2)

 
 

> 20

55 (15.3)

48 (11.5)

 

89 (17.2)

105 (19.3)

 

Education achieved

No diploma

25 (6.9)

19 (4.3)

< 0.001

53 (9.9)

69 (12.1)

0.40

 

High school diploma

136 (37.4)

117 (26.4)

 

153 (28.7)

149 (26.2)

 
 

Post high school

203 (55.8)

307 (69.3)

 

327 (61.4)

350 (61.6)

 
  1. Data are counts (percentage) unless otherwise indicated. Counts do not total to 1,967 subjects due to missing data for some variables. P-values are from within-sites tests of case-control differences; continuous variables (t-test) and categorical variables (Chi square test). Family history, in first or second degree relative; bold indicates p < 0.05.