Jorgensen T (1989) Gallstones in a Danish population: relation to weight, physical activity, smoking, coffee consumption, and diabetes mellitus. Gut 30:528–534

Article  PubMed  CAS  Google Scholar 

NIH Consensus conference (1993) Gallstones and laparoscopic cholecystectomy. JAMA 269:1018–1024

Article  Google Scholar 

McMahon AJ, Fischbacher CM, Frame SH, MacLeod MC (2000) Impact of laparoscopic cholecystectomy: a population-based study. Lancet 356:1632–1637

Article  PubMed  CAS  Google Scholar 

A prospective analysis of 1,518 laparoscopic cholecystectomies. The Southern Surgeons Club. N Engl J Med 324:1073–1078, 1991

Connor S, Garden OJ (2006) Bile duct injury in the era of laparoscopic cholecystectomy. Br J Surg 93:158–168

Article  PubMed  CAS  Google Scholar 

Harboe KM, Anthonsen K, Bardram L (2009) Validation of data and indicators in the Danish Cholecystectomy Database. Int J Qual Health Care 21:160–168

Article  PubMed  Google Scholar 

Mainz J (2003) Defining and classifying clinical indicators for quality improvement. Int J Qual Health Care 15:523–530

Article  PubMed  Google Scholar 

The Danish National Board of Health (2006) Referenceprogram for behandling af patienter med galdestenssygdomme (Guidelines for treatment of patients with gallstone disease). Retrieved 26 March at http://www.sst.dk/publ/PLAN/SfR/Galdesten/Galdestenssygdomme.pdf

Schmidt CO, Kohlmann T (2008) When to use the odds ratio or the relative risk? Int J Public Health 53:165–167

Article  PubMed  Google Scholar 

Bardram L (2008) The annual report of The Danish Cholecystectomy Database 2008. Retrieved 26 March 2010 at http://www.kliniskedatabaser.dk/artikeldataVis.asp?id=27&m

Deziel DJ, Millikan KW, Economou SG, Doolas A, Ko ST, Airan MC (1993) Complications of laparoscopic cholecystectomy: a national survey of 4,292 hospitals and an analysis of 77,604 cases. Am J Surg 165:9–14

Article  PubMed  CAS  Google Scholar 

Fletcher DR, Hobbs MS, Tan P, Valinsky LJ, Hockey RL, Pikora TJ, Knuiman MW, Sheiner HJ, Edis A (1999) Complications of cholecystectomy: risks of the laparoscopic approach and protective effects of operative cholangiography: a population-based study. Ann Surg 229:449–457

Article  PubMed  CAS  Google Scholar 

Johansson M, Thune A, Nelvin L, Stiernstam M, Westman B, Lundell L (2005) Randomized clinical trial of open versus laparoscopic cholecystectomy in the treatment of acute cholecystitis. Br J Surg 92:44–49

Article  PubMed  CAS  Google Scholar 

Ros A, Gustafsson L, Krook H, Nordgren CE, Thorell A, Wallin G, Nilsson E (2001) Laparoscopic cholecystectomy versus minilaparotomy cholecystectomy: a prospective, randomized, single-blind study. Ann Surg 234:741–749

Article  PubMed  CAS  Google Scholar 

Tang B, Cuschieri A (2006) Conversions during laparoscopic cholecystectomy: risk factors and effects on patient outcome. J Gastrointest Surg 10:1081–1091

Article  PubMed  Google Scholar 

Karayiannakis AJ, Polychronidis A, Perente S, Botaitis S, Simopoulos C (2004) Laparoscopic cholecystectomy in patients with previous upper or lower abdominal surgery. Surg Endosc 18:97–101

Article  PubMed  CAS  Google Scholar 

Lipman JM, Claridge JA, Haridas M, Martin MD, Yao DC, Grimes KL, Malangoni MA (2007) Preoperative findings predict conversion from laparoscopic to open cholecystectomy. Surgery 142:556–565

Article  PubMed  Google Scholar 

Rosen M, Brody F, Ponsky J (2002) Predictive factors for conversion of laparoscopic cholecystectomy. Am J Surg 184:254–258

Article  PubMed  Google Scholar 

Veen EJ, Bik M, Janssen-Heijnen ML, De JM, Roukema AJ (2008) Outcome measurement in laparoscopic cholecystectomy by using a prospective complication registry: results of an audit. Int J Qual Health Care 20:144–151

Article  PubMed  Google Scholar 

Velanovich V, Morton JM, McDonald M, Orlando R III, Maupin G, Traverso LW (2006) Analysis of the SAGES outcomes initiative cholecystectomy registry. Surg Endosc 20:43–50

Article  PubMed  CAS  Google Scholar 

Nuzzo G, Giuliante F, Giovannini I, Ardito F, D’Acapito F, Vellone M, Murazio M, Capelli G (2005) Bile duct injury during laparoscopic cholecystectomy: results of an Italian national survey on 56 591 cholecystectomies. Arch Surg 140:986–992

Article  PubMed  Google Scholar 

Livingston EH, Rege RV (2004) A nationwide study of conversion from laparoscopic to open cholecystectomy. Am J Surg 188:205–211

Article  PubMed  Google Scholar 

Russell JC, Walsh SJ, Mattie AS, Lynch JT (1996) Bile duct injuries, 1989–1993: a statewide experience. Connecticut Laparoscopic Cholecystectomy Registry. Arch Surg 131:382–388

PubMed  CAS  Google Scholar 

Carbonell AM, Lincourt AE, Kercher KW, Matthews BD, Cobb WS, Sing RF, Heniford BT (2005) Do patient or hospital demographics predict cholecystectomy outcomes? A nationwide study of 93,578 patients. Surg Endosc 19:767–773

Article  PubMed  CAS  Google Scholar 

Ballal M, David G, Willmott S, Corless DJ, Deakin M, Slavin JP (2009) Conversion after laparoscopic cholecystectomy in England. Surg Endosc 23:2338–2344

Article  PubMed  CAS  Google Scholar 

Giger UF, Michel JM, Opitz I, Th ID, Kocher T, Krahenbuhl L (2006) Risk factors for perioperative complications in patients undergoing laparoscopic cholecystectomy: analysis of 22,953 consecutive cases from the Swiss Association of Laparoscopic and Thoracoscopic Surgery database. J Am Coll Surg 203:723–728

Article  PubMed  Google Scholar 

Buanes T, Mjaland O, Waage A, Langeggen H, Holmboe J (1998) A population-based survey of biliary surgery in Norway: relationship between patient volume and quality of surgical treatment. Surg Endosc 12:852–855

Article  PubMed  CAS  Google Scholar 

Orlando R III, Russell JC, Lynch J, Mattie A (1993) Laparoscopic cholecystectomy: a statewide experience. The Connecticut Laparoscopic Cholecystectomy Registry. Arch Surg 128:494–498

PubMed  Google Scholar 

Thesbjerg S, Harboe KM, Bardram L, Rosenberg J (2010) Sex differences in laparoscopic cholecystectomy. Surg Endosc 24:3068–3072

Article  PubMed  Google Scholar 

Kama NA, Doganay M, Dolapci M, Reis E, Atli M, Kologlu M (2001) Risk factors resulting in conversion of laparoscopic cholecystectomy to open surgery. Surg Endosc 15:965–968

Article  PubMed  CAS  Google Scholar 

Birkmeyer JD, Hamby LS, Birkmeyer CM, Decker MV, Karon NM, Dow RW (2001) Is unplanned return to the operating room a useful quality indicator in general surgery? Arch Surg 136:405–411

Article  PubMed  CAS  Google Scholar 

Froschl U, Sengstbratl M, Huber J, Fugger R (2006) Unplanned reoperations for infection complications: a survey for quality control. Surg Infect Larchmt 7:263–268

Article  PubMed  Google Scholar 

Archer SB, Brown DW, Smith CD, Branum GD, Hunter JG (2001) Bile duct injury during laparoscopic cholecystectomy: results of a national survey. Ann Surg 234:549–558

Article  PubMed  CAS  Google Scholar 

Waage A, Nilsson M (2006) Iatrogenic bile duct injury: a population-based study of 152 776 cholecystectomies in the Swedish Inpatient Registry. Arch Surg 141:1207–1213

Article  PubMed  Google Scholar 

Mahatharadol V (2004) Bile duct injuries during laparoscopic cholecystectomy: an audit of 1,522 cases. Hepatogastroenterology 51:12–14

PubMed  Google Scholar