From: Patient factors influencing the effect of surgeon-performed ultrasound on the acute abdomen
Characteristics | Ultrasound (n = 392) | Non-ultrasound (n = 391) | ||||||
---|---|---|---|---|---|---|---|---|
Mean | SD | n | % | Mean | SD | n | % | |
Age | 47 | 20 | 48 | 19 | ||||
Height | 172 | 9 | 172 | 10 | ||||
Weight | 73 | 16 | 73 | 16 | ||||
BMI (body mass index) | 24.8 | 4.5 | 24.8 | 4.3 | ||||
Gender | ||||||||
Male | 160 | 40.8 | 171 | 43.7 | ||||
Female | 232 | 59.2 | 220 | 56.3 | ||||
Abdominal related comorbidity | 76 | 19.4 | 78 | 19.9 | ||||
Comorbidity related to heart or diabetes | 66 | 16.8 | 74 | 18.9 | ||||
History of abdominal malignancy | 6 | 1.5 | 12 | 3.1 | ||||
History of other malignancy | 11 | 2.8 | 14 | 3.6 | ||||
Other comorbidity | 132 | 33.7 | 123 | 31.5 | ||||
Admission for abdominal pain within 1 year | 124 | 32.0 | 137 | 35.3 | ||||
Referral for admission | 92 | 24.4 | 126 | 32.9 | ||||
Duration of pain | ||||||||
0–8 h | 44 | 14.8 | 43 | 14.4 | ||||
8–24 h | 99 | 33.2 | 97 | 32.4 | ||||
>24 h | 147 | 49.3 | 151 | 50.5 | ||||
Cannot answer | 8 | 2.7 | 8 | 2.7 | ||||
Affected general condition | 90 | 23.3 | 74 | 19.1 | ||||
Tenderness | 338 | 86.4 | 347 | 89.2 | ||||
Rigidity | 51 | 13.1 | 49 | 12.6 | ||||
Palpable mass | 23 | 5.9 | 29 | 7.5 | ||||
Actual VAS (of pain)a | 4.3 | 2.8 | 4.4 | 2.6 | ||||
Maximal anamnestic VAS (of pain)a | 7.6 | 2.6 | 7.6 | 1.8 | ||||
Temperature | 37.0 | 0.8 | 37.0 | 0.7 |