Table 4 Variables showing p < 0.20 in univariable analysis in 297 colic surgeries in Norway 2005–2011
From: Surgical treatment of equine colic - a retrospective study of 297 surgeries in Norway 2005–2011
Variable | Mean (range)/ number (%) | OR | p-value |
|---|---|---|---|
Hospital | |||
Hospital 1 | 179 (60.2) | 1.00 | |
Hospital 2 | 118 (39.7) | 0.65 | 0.146 |
Duration of signs (hours) | |||
0 - 8 | 53 (19.5) | 1.00 | |
8 - 16 | 79 (29.0) | 1.62 | 0.191 |
16 - 30 | 68 (15.0) | 1.42 | 0.364 |
>30 | 72 (26.5) | 0.75 | 0.441 |
Transport time (minutes) | 88.6 (0–900) | 1.003 | 0.032 |
Preoperative variables | |||
Heart rate | |||
Normal (≤44 bpm) | 62 (22.9) | 1.00 | |
Increased (>44 bpm) | 209 (77.1) | 0.52 | 0.043 |
Capillary refill time | |||
< 2 seconds | 96 (42.3) | 1.00 | |
2-3 seconds | 110 (48.5) | 1.06 | 0.843 |
> 3 seconds | 21 (9.3) | 0.29 | 0.029 |
Mucosal membranes | |||
Normal | 108 (40.2) | 1.00 | |
Slightly abnormal | 81 (30.2) | 0.40 | 0.005 |
Pale | 54 (20.1) | 0.31 | 0.001 |
Cyanotic | 10 (3.7) | 0.14 | 0.024 |
Toxic | 15 (5.6) | 0.40 | 0.514 |
Intestinal sounds | |||
Normal | 22 (9.3) | 1.00 | |
Reduced | 110 (46.4) | 0.55 | 0.297 |
Abscent | 78 (32.9) | 0.29 | 0.033 |
Tympanic | 19 (8.0) | 0.64 | 0.539 |
Increased | 8 (3.4) | 0.19 | 0.070 |
Hematocrit | |||
Normal (0.32 - 0.42) | 120 (47.8) | 1.00 | |
Low (<0.32) | 37 (14.7) | 0.92 | 0.834 |
Increased (>0.42) | 94 (37.5) | 0.50 | 0.021 |
Intraoperative variables | |||
Board-certified surgeon (yes\no) | |||
No | 201 (68.4) | 1.00 | |
Yes | 93 (31.6) | 2.14 | 0.004 |
Anesthetist (continuous) | 8 (1–26) | 0.97 | 0.181 |
Affected GI-segment | |||
Small intestine | 101 (34.0) | 1.00 | |
Cecum | 25 (8.4) | 0.42 | 0.081 |
Large colon | 141 (47.5) | 2.02 | 0.011 |
Small colon | 19 (6.4) | 1.10 | 0.851 |
Other | 10 (3.4) | 0.67 | 0.557 |
Intestinal resection (yes\no)* | |||
No | 198 (90.4) | 1.00 | |
Yes | 21 (9.6) | 0.42 | 0.064 |