Table 7.
Analysis of epidemiologic risk factors for S. aureus and MRSA nasal carriage among prisoners, Jimma town, 2011
Risk factors |
Staphylococcus N=50 |
P |
Methicilin-resistant S. aureus n=25 |
p | ||||
---|---|---|---|---|---|---|---|---|
S.aureus | CNS | Positive | Negative | |||||
Age |
18-25 |
No. |
20 |
9 |
0.005 |
9 |
11 |
0.787 |
% |
80.0 |
36.0 |
75.0 |
84.6 |
||||
26-35 |
No. |
2 |
9 |
1 |
1 |
|||
% |
8.0 |
36.0 |
8.3 |
7.7 |
||||
36-45 |
No. |
3 |
7 |
2 |
1 |
|||
% |
12.0 |
28.0 |
16.7 |
7.7 |
||||
Sex |
Male |
No. |
25 |
25 |
- |
12 |
13 |
- |
% |
100 |
100 |
100 |
100 |
||||
Previous hospitalization in the past 1 year |
Present |
No. |
5 |
2 |
0.417 |
2 |
3 |
1.00 |
% |
20 |
8 |
16.7 |
23.1 |
||||
Absent |
No. |
20 |
23 |
10 |
10 |
|||
% |
80. |
92 |
83.3 |
76.9 |
||||
Antibiotic usage in the past 4 weeks |
Present |
No. |
7 |
6 |
0.5 |
6 |
1 |
0.030 |
% |
28 |
24 |
50 |
7.7 |
||||
Absent |
No. |
18 |
19 |
6 |
12 |
|||
% |
72 |
76 |
50 |
92.3 |
||||
Extent of usage of subscribed antibiotics |
Completed |
No. |
5 |
6 |
0.209 |
4 |
1 |
1.00 |
% |
62.5 |
100 |
66.7 |
50 |
||||
Not-Completed |
No. |
3 |
- |
2 |
1 |
|||
% |
37.5 |
- |
33.3 |
50 |
||||
Having respiratory infection at time of study |
Present |
No. |
11 |
13 |
0.778 |
9 |
2 |
0.005 |
% |
44 |
52 |
75 |
15.4 |
||||
Absent |
No. |
14 |
12 |
3 |
11 |
|||
% |
56 |
48 |
25 |
84.6 |
||||
Number of prisoners in dormitory/room |
1-20 |
No. |
1 |
3 |
0.048 |
- |
1 |
0.034 |
% |
4 |
12 |
- |
7.7 |
||||
21-40 |
No. |
1 |
6 |
- |
1 |
|||
% |
4 |
24 |
- |
7.7 |
||||
41-60 |
No. |
4 |
6 |
- |
4 |
|||
% |
16 |
24 |
- |
30.8 |
||||
>60 |
No. |
19 |
10 |
12 |
7 |
|||
% |
76 |
40 |
100 |
53.8 |
||||
Presence of hospital admitted patients in prisoner room(in the last 1yr) | Present |
No. |
8 |
12 |
0.387 | 5 |
3 |
0.411 |
% |
32 |
48 |
41.7 |
23.1 |
||||
Absent |
No. |
17 |
13 |
7 |
10 |
|||
% | 68 | 52 | 58.3 | 76.9 |
N= total number of nasal swabs taken from prisoners, n= total number of Methicillin-Resistant S. aureus isolates from prisoners.