Acknowledgements
We would like to thank the following societies for supporting the project: Society for surgery (Dutch Association of Surgery (NVvH), Dutch Association of Trauma Surgery (NVT), Dutch Orthopaedic Association (NOV), and Dutch Association of Orthopaedic Surgery (NVOT)), clinical geriatrics (Dutch Association of Clinical Geriatrics NVKG)), elderly care (Association of Elderly Care Physicians (VERENSO)) and the Dutch Patient Federation.
FRAIL-HIP study group
Lisanne Balemans, MD11, Frank W. Bloemers MD PhD12, Janneke Bos, MD13, Jantien Brouwer, MD PhD14, Bart J. Burger, MD PhD15, Judella O. Daal, MD16,17, Annemarieke De Jonghe, MD PhD18, Matthea Dijkshoorn, MD19, Michael J.R. Edwards, MD PhD20, Ellen A. Elbrecht, MD21, Miriam C. Faes, MD PhD22, Elvira R. Flikweert, MD23, Robert D.A. Gaasbeek, MD PhD24, Olivia C. Geraghty, MD PhD25, J. Carel Goslings, MD PhD26, J. Han Hegeman, MD PhD27, Mischa M. Hindriks, MD28, Michel Holla, MD PhD29, André Janse, MD30, Joris A. Jansen, MD31, Simone J.M. Jong, MD32, Paul J.C. Kapitein, MD33, Y.V. (IJdo) Kleinlugtenbelt, MD PhD34, Barbara E. Kreis, MD35, Rover Krips, MD PhD36, Koen W.W. Lansink, MD PhD37, Michiel Leijnen, MD38, Pieter H.W. Lubbert, MD PhD39, M. Cor Luyten, MD PhD40, Franceso U.S. Mattace Raso, MD PhD41, Marieke C. Meinardi, MD42, Joris Mellema, MD43, Roland M.H.G. Mollen, MD PhD44, Majon Muller, MD PhD45, Joost C. Peerbooms, MD46, Kees-Jan Ponsen, MD PhD47, Rudolf W. Poolman, MD PhD48, Miruna Popescu, MD PhD49, Albert F. Pull ter Gunne, MD PhD50, Bas J. Punt, MD51, Gert R. Roukema, MD52, Hilde I.F. Royen, MD PhD53, Jeanine Schukking, MD54, Josje Snoek, MD55, Charles T. Stevens, MD56, Dieneke van Asselt, MD PhD57, Alexander H. Van der Veen, MD PhD58, Detlef Van der Velde, MD PhD59, Bart A. Van Dijkman, MD60, Paul J. Van Koperen, MD PhD61, Job L.C. Van Susante, MD62, Romuald van Velde, MD63, M. Remmelt Veen, MD PhD64, Michael H.J. Verhofstad, MD PhD2, Ralf W. Vingerhoets, MD PhD65, Dagmar I. Vos, MD PhD66, Hugo H. Wijnen, MD67, Judith Wilmer, MD68, Jasper Winkelhagen, MD69,70, Johan F.H. Wold, MD71, Robbert A. Zandbergen, MD72, G. (Bert) Ziere, MD PhD73,
2 Trauma Research Unit Department of Surgery, Erasmus MC, University Medical Center Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
11 Department of Geriatrics, Flevoziekenhuis, P.O. Box 3005, 1300 EG Almere, The Netherlands
12 Department of Surgery, Amsterdam UMC (location VUmc), P.O. Box 7057, 1007 MB Amsterdam, The Netherlands
13 Department of Orthopaedic Surgery, Catharina Ziekenhuis, P.O. Box 1350, 5602 ZA Eindhoven, The Netherlands
14 Department of Geriatrics, Alrijne Ziekenhuis, P.O. Box 4220, 2350 CC Leiderdorp, The Netherlands
15 Department of Orthopaedic Surgery, Noordwest Ziekenhuisgroep, P.O Box 501, 1800 AM Alkmaar, The Netherlands
16 Department of Geriatrics, Westfriesgasthuis, P.O. Box 600, 1620 AR Hoorn, The Netherlands
17 Department of Geriatrics, Waterland Ziekenhuis, P.O. Box 250, 1440 AG Purmerend, The Netherlands
18 Department of Geriatrics, Tergooi, P.O. Box, 10016, 1201 DA Hilversum, The Nederlands
19 Department of Geriatrics, Ziekenhuis Tjongerschans, P.O. Box 10500, 8440 MA Heerenveen, The Netherlands
20 Department of Surgery, Radboud UMC, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
21 Department of Geriatrics, Deventer Ziekenhuis, P.O. Box 5001, 74001 GC Deventer, The Netherlands
22 Department of Geriatrics, Amphia Ziekenhuis, P.O. Box 90157, 4800 RL Breda, The Netherlands
23 Department of Surgery, Deventer Ziekenhuis, P.O. Box 5001, 74001 GC Deventer, The Netherlands.
24 Department of Orthopaedic Surgery, Meander MC, P.O. Box 1502, 3800 BM, Amersfoort, The Netherlands
25 Department of Geriatrics, St. Antonius Ziekenhuis, P.O. Box 2500, 3430 EM Nieuwegein, The Netherlands
26 Department of Surgery, OLVG, P.O. Box 95500, 1090 HM Amsterdam, The Netherlands
27 Department of Surgery, Zorggroep Twente, P.O. Box 7600, 7600 SZ Almelo, The Netherlands
28 Department of Orthopaedic Surgery, Bernhoven, P.O. Box 707, 5400 AS Uden, The Netherlands
29 Department of Orthopaedic surgery, Radboud UMC, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
30 Department of Geriatrics, Ziekenhuis Gelderse Vallei, P.O. Box 9025, 6710 HN Ede, The Netherlands
31 Department of Orthopaedic Surgery, Alrijne Ziekenhuis, P.O. Box 4220, 2350 CC Leiderdorp, The Netherlands
32 Department of Geriatrics, OLVG, P.O. Box 95500, 1090 HM Amsterdam, The Netherlands
33 Department of Orthopaedic Surgery, Ziekenhuis Gelderse Vallei, P.O. Box 9025, 6710 HN Ede, The Netherlands
34 Department of Orthopaedic Surgery, Deventer Ziekenhuis, P.O. Box 5001, 74001 GC Deventer, The Netherlands
35 Department of Surgery, Streekziekenhuis Koningin Beatrix, P.O. Box 9005, 7100 GG Winterswijk, The Netherlands
36 Department of Orthopaedic Surgery, Flevoziekenhuis, P.O. Box 3005, 1300 EG Almere, The Netherlands
37 Department of Surgery, Alrijne Ziekenhuis, P.O. Box 4220, 2350 CC Leiderdorp, The Netherlands
38 Department of Surgery, Elisabeth-TweeSteden Ziekenhuis, P.O. Box 90151, 5000 LC Tilburg, The Netherlands
39 Department of Surgery, Ziekenhuis Tjongerschans, P.O. Box 10500, 8440 MA Heerenveen, The Netherlands
40 Department of Geriatrics, Zorggroep Twente, P.O. Box 7600, 7600 SZ Almelo, The Netherlands
41 Department of Internal Medicine, Section of Geriatric Medicine, Erasmus MC, University Medical Center Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
42 Department of Geriatrics, Albert Schweitzer Ziekenhuis, P.O. Box 444, 3300 AK Dordrecht, The Netherlands
43 Department of Orthopaedic Surgery, Ziekenhuis Tjongerschans, P.O. Box 10500, 8440 MA Heerenveen, The Netherlands
44 Department of Surgery, Ziekenhuis Gelderse Vallei, P.O. Box 9025, 6710 HN Edes, The Netherlands
45 Department of Internal Medicine, Section of Geriatric Medicine, Amsterdam UMC (location VUmc), P.O. Box 7057, 1007 MB Amsterdam, The Netherlands
46 Department of Orthopaedic Surgery, Albert Schweitzer Ziekenhuis, P.O. Box 444, 3300 AK Dordrecht, The Netherlands
47 Department of Surgery, Rode Kruis Ziekenhuis, P.O. Box 1074, 1940 EB Beverwijk, The Netherlands
48 Department of Orthopaedic Surgery, OLVG, P.O. Box 95500, 1090 HM Amsterdam, The Netherlands
49 Department of Geriatrics, Noordwest Ziekenhuisgroep, P.O Box 501, 1800 AM Alkmaar, The Netherlands
50 Department of Surgery, Rijnstate, P.O. Box 9555, 6800 TA Arnhem, The Netherlands
51 Department of Surgery, Albert Schweitzer Ziekenhuis, P.O. Box 444, 3300 AK Dordrecht, The Netherlands
52 Department of Surgery, Maasstad Ziekenhuis, P.O. Box 9100, 3007 AC Rotterdam, The Netherlands
53 Department of Geriatrics, Isala, P.O. Box 10400, 8000 GK Zwolle, The Netherlands
54 Department of Geriatrics, Rode Kruis Ziekenhuis, P.O. Box 1074, 1940 EB Beverwijk, The Netherlands
55 Department of Geriatrics, Bernhoven, P.O. Box 707, 5400 AS Uden, The Netherlands
56 Department of Surgery, Bernhoven, P.O. Box 707, 5400 AS Uden, The Netherlands
57 Department of Geriatrics, Radboud UMC, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
58 Department of Surgery, Catharina Ziekenhuis, P.O. Box 1350, 5602 ZA Eindhoven, The Netherlands
59 Department of Surgery, St. Antonius Ziekenhuis, P.O. Box 2500, 3430 EM Nieuwegein, The Netherlands
60 Department of Surgery, Flevoziekenhuis, P.O. Box 3005, 1300 EG Almere, The Netherlands
61 Department of Surgery, Meander MC, P.O. Box 1502, 3800 BM, Amersfoort, The Netherlands
62 Department of Orthopaedic Surgery, Rijnstate, P.O. Box 9555, 6800 TA Arnhem, The Netherlands
63 Department of Surgery, Tergooi, P.O. Box 10016, 1201 DA Hilversum, The Netherlands
64 Department of Orthopaedic Surgery, St. Antonius Ziekenhuis, P.O. Box 2500, 3430 EM Nieuwegein, The Netherlands
65 Department of Geriatrics, Elisabeth-TweeSteden Ziekenhuis, P.O. Box 90151, 5000 LC Tilburg, The Netherlands
66 Department of Surgery, Amphia Ziekenhuis, P.O. Box 90157, 4800 RL Breda, The Netherlands
67 Department of Geriatrics, Rijnstate, P.O. Box 9555, 6800 TA Arnhem, The Netherlands
68 Department of Geriatrics, Catharina Ziekenhuis, P.O. Box 1350, 5602 ZA Eindhoven, The Netherlands
69 Department of Surgery, Dijklander Ziekenhuis (location Westfriesgasthuis), P.O. Box 600, 1620 AR Hoorn, The Netherlands
70 Department of Surgery, Dijklander Ziekenhuis (location Waterland Ziekenhuis), P.O. Box 250, 1440 AG Purmerend, The Netherlands
71 Department of Internal medicine, Gastroenterology and Geriatric medicine, Meander MC, P.O. Box 1502, 3800 BM, Amersfoort, The Netherlands
72 Department of Orthopaedic Surgery, Rode Kruis Ziekenhuis, P.O. Box 1074, 1940 EB Beverwijk, The Netherlands
73 Department of Geriatrics, Maasstad Ziekenhuis, P.O. Box 9100, 3007 AC Rotterdam, The Netherlands