Table 2 |
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|
Kaplan Meier estimates of median time to recovery with 95% confidence intervals (CI) for explanatory variables in sheep by acute and chronic footrot |
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|
Variable |
Category |
Acute footrot |
Chronic footrot |
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|
|
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|
N (% of all affected) |
Median time to recovery (95% CI) in days |
N (% of all affected) |
Median time to recovery (95% CI) in days |
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|
|
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|
Farm |
1 |
9 (14) |
7 (7-NE) |
- |
|
|
2 |
37 (60) |
7 (7-7) |
2 (7) |
17 (14-NE) |
|
|
3 |
9 (14) |
7 (3-NE) |
- |
- |
|
|
4 |
6 (10) |
7 (7-NE) |
3 (10) |
19 (14-NE) |
|
|
5 |
1 (2) |
2* |
5 (16) |
7 (6-NE) |
|
|
6 |
- |
- |
9 (30) |
7 (7-NE) |
|
|
7 |
- |
- |
11 (37) |
28 (17-28) |
|
|
Age |
< 4 years |
34 (57) |
7 (7-7) |
12 (40) |
14 (7-21) |
|
≥ 4 years |
26 (43) |
7 (7-7) |
18 (60) |
17 (7-28) |
|
|
Presence of pus |
Yes |
6 (10) |
7 (5-7) |
15 (50) |
8 (7-28) |
|
No |
56 (90) |
7 (7-7) |
15 (50) |
17 (8-21) |
|
|
Body condition score |
2 |
- |
- |
16 (53) |
7 (7-17) |
|
3 |
52 (84) |
7 (7-7) |
14 (47) |
21 (17-28) |
|
|
4 |
10 (16) |
7 (2-7) |
- |
- |
|
|
Footrot severity |
Score 1 (acute) |
9 (15) |
3 (2-NE) |
- |
- |
|
Score 2 (acute) |
44 (70) |
7 (7-7) |
- |
- |
|
|
Score 3 (acute) |
9 (15) |
7 (5-14) |
- |
- |
|
|
Score 3 (chronic) |
- |
- |
21 (70) |
14 (7-17) |
|
|
Score 4 (chronic) |
- |
- |
9 (30) |
21 (7-NE) |
|
|
No. of days lame before treatment |
Up to 1 wk |
41 (66) |
7 (7-7) |
- |
- |
|
> 1 wk-27 days |
21 (33) |
7 (7-7) |
- |
- |
|
|
> 27 days-2 months |
- |
- |
13 (43) |
14 (7-21) |
|
|
> 2-8 months |
- |
- |
10 (33) |
17 (7-28) |
|
|
> 8-24 months |
- |
- |
7 (24) |
7 (7-NE) |
|
|
Treatment |
Oxytetracycline |
28 (45) |
7 (7-7) |
12 (40) |
17 (7-21) |
|
Enrofloxacin |
24 (39) |
7 (7-7) |
18 (60) |
14 (7-28) |
|
|
Topical treatment with potassium permanganate solution |
10 (16) |
^ (21-NE) |
- |
- |
|
|
|
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|
*one observation; ^less than 50% sheep recovered; NE not estimated |
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|
Kaler et al. BMC Veterinary Research 2012 8:12 doi:10.1186/1746-6148-8-12 |
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