Results Of the 300 patients who met the inclusion criteria between January 1, 2004, and December 31, 2006, 34 had one or more exclusion criteria (Figure  2). Among the 266 eligible patients, 32 had missing physical examination data or no recorded ultrasound images, leaving 234 patients for the analysis. The characteristics of the patients with missing data did not differ from those of the patients included in the analysis. Figure 2 Pritelivir Flow chart of the study population. The main patient characteristics and laparoscopy diagnoses are shown in Table  1. Of the 234 patients, 139 (59%) had laparoscopically confirmed surgical

emergencies and the remaining 95 (41%) patients had benign emergencies that did not require immediate surgery, including 7 (6.3%) entirely normal findings at laparoscopy. Table 1 Characteristics of the study population

and laparoscopy diagnoses   Overall population N=234 Surgical emergencies N=139 Benign emergencies N=95 Age in years, mean±SD 31.3 ± 7.0 31.9 ± 6.9 30.5 ± 7.1 Gravidity, median [range] 2 [0–9] 2 [0–9] 1 [0–6]* Parity, median [range] 1 [0–6] 1 [0–6] 0 [0–4]* Contraception, n (%) 65 (27.9) 37 (26.8) 28 (29.5) Pain NRS score www.selleckchem.com/products/icg-001.html at admission, mean±SD 6.7 ± 2.6 6.9 ± 2.6 6.4 ± 2.5 Positive hCG test, n (%) 150 (64.1) 97 (69.8)† 53 (55.8)† Laparoscopy diagnosis       Ectopic pregnancy, n (%) 136 (58.1) 91 (65.5) 45 (47.4) Pelvic inflammatory disease, n (%) 31 (13.2) 25 (18.0) 6 (6.3) Adnexal torsion, Etoposide cell line n (%) 15 (6.4) 15 (10.8) NA Appendicitis, n (%) 4 (1.7) 4 (2.9) NA Ruptured hemorrhagic cyst, n (%) 5 (3.0) 2 (1.4) 3 (5.3) Other diagnosis, n (%) 36 (15.0) 2 (1.4)‡ 34 (34.7)‡ Normal, n (%) 7 (2.6) NA 7 (6.3) Surgical emergencies were ectopic pregnancies with tubal rupture or active bleeding or cardiac activity or hemoperitoneum over 300 mL; pelvic inflammatory disease complicated with pyosalpinx, tubo-ovarian abscess, or pelvic peritonitis; adnexal torsion; hemorrhagic ovarian cyst rupture with hemoperitoneum exceeding 300 mL; appendicitis; and intestinal obstruction. Benign emergencies were conditions expected to resolve spontaneously or

with appropriate medical treatment. NRS, A-769662 datasheet numerical rating scale for pain severity; hCG, human chorionic gonadotropin; NA, not applicable; SD, standard deviation; NRS, Numerical rating scale; hCG, serum human chorionic gonadotrophin; NA, not applicable. *P<0.05, Student’s t test; †P<0.05, Chi-square; ‡ Intestinal obstruction; ‡ uncomplicated ovarian cysts or intracystic hemorrhage. Both the physical examination alone (DOR, 3.5; 95% CI, 1.8 to 6.9; P<0.001) and TVUS alone (DOR, 6.6; 95% CI, 2.8 to 15.6; P<0.0001) independently predicted a laparoscopy diagnosis of surgical emergency. However, when used alone, neither the physical examination nor TVUS performed sufficiently well to rule out a surgical emergency (Table  2). TVUS alone was better than the physical examination alone (false-negative rates, 5.8% and 13.0%, respectively).