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Table 1 Demographics and descriptive epidemiology of U.S. military (CDAD) cases (1998-2010)

From: Epidemiology of CLOSTRIDIUM DIFFICILEinfection among active duty United States military personnel (1998-2010)

 

All cases

C. difficilecases (CDAD) n (%) total = 2,423

 

2,423

CA = 1,018

HA = 1,405

P value

Age yr. (Median; IQR)

30; 24, 39

31; 25, 39

30; 23, 39

0.1529

Gender

   

Male

1,880 (77.6)

908 (74.5)

972 (80.7)

<0.001

Female

543 (22.4)

311 (25.5)

232 (19.3)

Race

   

White

1,686 (69.6)

853 (70)

833 (69.2)

0.263

Black

355 (14.7)

179 (14.7)

176 (14.6)

Asian

39 (1.6)

21 (1.7)

18 (1.5)

American Indian

26 (1.1)

19 (1.6)

7 (0.6)

Hispanic

121 (5.0)

57 (4.7)

64 (5.3)

Unknown/other

196 (8.1)

90 (7.4)

106 (8.8)

Rank

   

O6-O10

32 (1.3)

16 (1.3)

16 (1.3)

0.900

O1-05

360 (14.9)

185 (15.2)

175 (14.5)

Warrant officer

34 (1.4)

16 (1.3)

18 (1.5)

E5-E9

1,139 (47)

581 (47.7)

558 (46.4)

E1-E4

858 (35.4)

421 (34.5)

437 (36.3)

Education

   

Graduate

346 (6.1)

98 (8.0)

80 (6.6)

0.001

Bachelor’s degree

675 (11.9)

164 (13.5)

153 (12.7)

Some college

591 (10.5)

174 (14.3)

129 (10.7)

High school

3,824 (67.6)

749 (61.4)

795 (66.0)

<High school

42 (0.7)

4 (0.3)

19 (1.6)

Unknown

176 (3.1)

30 (2.5)

28 (2.3)

Marital status

   

Married

3,160 (56)

753 (61.8)

686 (57.1)

0.006

Single never married

2,211 (39.1)

380 (31.2)

452 (37.6)

Other

273 (4.8)

83 (6.8)

63 (5.2)

Unknown

4 (0.1)

2 (0.2)

1 (0.1)

Service branch

   

Army

995 (41.1)

505 (41.4)

490 (40.7)

0.009

Air Force

642 (26.5)

354 (29.0)

288 (23.9)

Coast Guard

73 (3.0)

36 (3.0)

37 (3.1)

Marine corps

252 (10.4)

109 (8.9)

143 (11.9)

Navy

461 (19.0)

215 (17.6)

246 (20.4)

Follow up in days (Median duration)

677

814

608

<0.001

  1. †Wilcoxon Rank Sum (Mann-Whitney) test used for comparison of continuous variables (Age, Duration of Follow Up); All other categorical variables evaluated with Chi-Square test for comparison of frequencies by appropriate degrees of freedom. HA- vs. CA- comparisons.