Table 2.
Comparisons of ultrasonographic and outcome parameters in a study of foals with subclinical pneumonia presumed to be caused by Rhodococcus equi treated with either GaM or standard treatment (clarithromycin + rifampin)
| a. Continuous Variables | |||
|---|---|---|---|
| Variable | Standard Treatment (n = 34) | GaM (n = 20) | P a |
| Median (range) | Median (range) | ||
| Age at 1st positive ultrasound (days) | 47 (33–83) | 48 (26–100) | .83 |
| Maximal diameter (MD) at 1st positive ultrasound (mm) | 34 (12–77) | 24 (17–46) | .004 |
| Total score 1st positive ultrasound | 4 (2–12) | 3 (2–6) | .007 |
| Maximal MD (mm) at any age | 31 (14–118) | 25 (16–58) | .09 |
| b. Categorical Variables | |||
|---|---|---|---|
| Variable | Standard Treatment | GaM | P b |
| Number (%) | Number (%) | ||
| 2 lesions (versus 1) | 12/34 (35%) | 20% (4/20) | .38 |
| Died | 3/34 (9%) | 1/20 (5%) | 1.0 |
| Resolved | 25/34 (74%) | 14/20 (70%) | .97 |
| Resolved among survivors | 22/31 (71%) | 13/19 (68%) | .90 |
| Resolved lesions <27 mm | 8/9 (89%) | 12/14 (86%) | 1.0 |
| Resolved lesions >27 | 17/25 (68%) | 2/6 (33%) | .17 |
GaM, gallium maltolate.
a
P value from Wilcoxon‐rank sum test.
b
P value from chi‐squared or Fisher's exact tests.