s / International Journal of Surgery 23 (2015) S15eS134 S107 representation. Surgeons must continue to participate as FTPD’s to facilitate trainees choosing a surgical career. 0909: WORK-BASED ASSESSMENTS AMONGST SURGEONS: A COMPARISON IN PRACTICE BETWEEN THE UNITED KINGDOM AND NEW ZEALAND W. Chaundy, G. Phoenix, C. Lutterodt. Chelsea andWestminsterHospital, UK Aim: Work-based assessments (WBAs) including DOPs, CEX and CBD are considered the highest form of assessing clinical competence. However, trainees and trainers in the UK and NZ are often inadequately trained, complete WBAs without feedback and trainers fail to be present; mandatory requirements for validation. Methods: Experiences of surgical first and second year trainees completing WBAs at London and NZ teaching hospitals were collated through a Likert-scale graded questionnaire. Results: Response ratewas 100% UK (FY11⁄411, FY21⁄416) andNZ (FY21⁄414). Most UK trainees; 72.5% (n 1⁄4 19) have completed 50% of DOPs with an assessor present, 77.1% (n 1⁄4 19) have completed 50% of CEX with an assessor present and 89.3% (n 1⁄4 24) have filled in 50% CBD with an assessor present compared with just 14.2% (n 1⁄4 2), 28.6% (n 1⁄4 4) and 14.2% (n 1⁄4 2) of NZ trainees respectively. 37% UK trainees (n1⁄4 10) and 14.2% of NZ trainees (n1⁄4 2) have 50%WBAS completed by non-trained assessors. Conclusion: In both countries there is a need for improvement in current practice. Fewer WBAs are supervised by trainers in NZ compared with UK. Most NZ trainers have received formal training in providing feedback. These differences in practice need to be taken into account for UK surgical trainees wishing to train abroad. 0934: USING THE 5F'S AS A DIAGNOSTIC AID FOR GALLSTONE DISEASE S. Ricketts , J. Blackwell , P. Lloyd , J. Lund , G. Tierney . Royal Derby Hospital, UK; Nottingham University, UK Aim: Undergraduates use mnemonics. The 5F's e female, fat, forty, fertile and fair, is used for predicting patients with gallstones. This project aims to elucidate the usefulness of the 5F's to identify patients with gallstones. Methods: Female patients presenting acutely to general surgery with right upper quadrant pain (n 1⁄4 206) over a six month period were included. ‘Fertility' was not attainable hence only 4 of the 5Fs were measured. Data were retrospectively collected from electronic records. Patients were considered tofit the 4F profile if: female,> 40 years old, Caucasian, BMI> 25. Results: 122/206 had image-proven gallstones and were older than those without (56.4 years range vs 47.8 years range, p 1⁄4 0.03). There was no significant difference in BMI between the 2 populations (p 1⁄4 0.07). 96% with gallstones were Caucasian (80.2% of local population of this ethnicity). Application of the 4F's in identifying patients with gallstone disease was calculated to have sensitivity of 0.54 and specificity of 0.55. The positive predictive value of the 4F tool was 0.71 and the negative predictive value was 0.38. Conclusion: The application of the 4/5F's is a poor method of identifying patients with gallstones. It should no longer be taught as an aid to diagnosis of gallstones. 0956: IMPROVING MEDICAL STUDENT EDUCATION IN THE OPERATING THEATRE THROUGH A NOVEL, MULTIDISCIPLINARY THEATRE INDUCTION COURSE R. Booth , R. Higgin , B. Saunders , D. Cadoux-Hudson . Cumberland Infirmary, UK; Queen Alexandra Hospital, UK; Royal Hampshire County