Table 3

Differences in Age, Sex, Race, Exposure Category, CD4+ Lymphocyte Count, and APACHE II Score


Blood stream infectiona




Characteristic
Present (n = 88)
Absent (n = 1,137)
P

Age, mean ± SD, y
38.3 ± 9.3
38.2 ± 8.9
0.9261
Sex


0.4045
     Male
50 (7)
704 (93)

     Female
38 (8)
433 (92)

Race


0.0013
     African American
83 (8)
943 (92)

     White
3 (2)
187 (98)

     Hispanic
2 (22)
7 (78)

Exposure category


0.4231
     Injection drug use
23 (7)
310 (93)

     Heterosexual contact
19 (10)
175 (90)

     Homosexual contact
3 (2)
135 (98)

     Commercial sex work and
2 (6)
30 (94)

          injection drug use



     Homosexual contact and
2 (7)
28 (93)

          injection drug use



     Commercial sex work
2 (7)
27 (93)

     Blood transfusion
1 (5)
21 (95)

     Needle stick
0 (0)
1 (100)

     Unidentified
36 (8)
410 (92)

CD4+ lymphocyte count,
0.173 ± 0.278 (0.059)
0.158 ± 0.218 (0.060)
0.6967
     mean ± SD (median), × 109/L



White blood cell count,
9.0 ± 6.6 (6.5)
6.3 ± 4.6 (4.9)
0.0002
     mean ± SD (median), × 109/L



APACHE II score,
19.8 ± 7.9 (18)
14.3 ± 6.6 (13)
< 0.0001
     mean ± SD (median)




APACHE, Acute Physiology and Chronic Health Evaluation; SD, standard deviation. aValues are number (percentage) unless otherwise indicated.

Afessa et al. BMC Infectious Diseases 2001 1:13   doi:10.1186/1471-2334-1-13