1 L.J. SIBILSKI. Cycling Is Everyone’s Business. 2015.
2 US Centers for Disease Control and Prevention, National Center for Injury Prevention and Control. Web-based Injury Statistics Query and Reporting System (WISQARS). 2017.
3 J. Nie, J. Yang, A study of bicyclist kinematics and injuries based on reconstruction of passenger car-bicycle accident in China, Accid Anal Prev 71(2014) 50-9. 10.1016/j.aap.2014.04.021.
4 A.C. Scholten, S. Polinder, M.J. Panneman, E.F. van Beeck, J.A. Haagsma, Incidence and costs of bicycle-related traumatic brain injuries in the Netherlands, Accid Anal Prev 81(2015) 51-60. 10.1016/j.aap.2015.04.022.
5 R.S. Thompson, F.P. Rivara, D.C. Thompson, A case-control study of the effectiveness of bicycle safety helmets, N Engl J Med 320(1989) 1361-7. 10.1056/NEJM198905253202101.
6 D.C. Thompson, F.P. Rivara, R. Thompson, Helmets for preventing head and facial injuries in bicyclists, Cochrane Database Syst Rev(2000) D1855. 10.1002/14651858.CD001855.
7 R.G. Attewell, K. Glase, M. McFadden, Bicycle helmet efficacy: a meta-analysis, Accid Anal Prev 33(2001) 345-52.
8 R. Elvik, Publication bias and time-trend bias in meta-analysis of bicycle helmet efficacy: a re-analysis of Attewell, Glase and McFadden, 2001, Accid Anal Prev 43(2011) 1245-51. 10.1016/j.aap.2011.01.007.
9 R. Elvik, Corrigendum to: "Publication bias and time-trend bias in meta-analysis of bicycle helmet efficacy: a re-analysis of Attewell, Glase and McFadden, 2001" [Accid. Anal. Prev. 43 (2011) 1245-1251], Accid Anal Prev 60(2013) 245-53.
10 J. Olivier, P. Creighton, Bicycle injuries and helmet use: a systematic review and meta-analysis, Int. J. Epidemiol. 46(2017) 278-92. 10.1093/ije/dyw153.
11 A. Hoye, Bicycle helmets - To wear or not to wear? A meta-analyses of the effects of bicycle helmets on injuries, Accid Anal Prev 117(2018) 85-97. 10.1016/j.aap.2018.03.026.
12 S. Chatterjee, J. Wetterslev, A. Sharma, E. Lichstein, D. Mukherjee, Association of blood transfusion with increased mortality in myocardial infarction: a meta-analysis and diversity-adjusted study sequential analysis, JAMA Intern. Med. 173(2013) 132-9. 10.1001/2013.jamainternmed.1001.
13 L. Shamseer, D. Moher, M. Clarke, D. Ghersi, A. Liberati, M. Petticrew, et al., Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015: elaboration and explanation, BMJ 350(2015) g7647. 10.1136/bmj.g7647.
14 A. Stang, Critical evaluation of the Newcastle-Ottawa scale for the assessment of the quality of nonrandomized studies in meta-analyses, Eur. J. Epidemiol. 25(2010) 603-5. 10.1007/s10654-010-9491-z.
15 C.B. Begg, M. Mazumdar, Operating characteristics of a rank correlation test for publication bias, Biometrics 50(1994) 1088-101.
16 W. Viechtbauer, M.W. Cheung, Outlier and influence diagnostics for meta-analysis, Res Synth Methods 1(2010) 112-25. 10.1002/jrsm.11.
17 S. Schneeweiss, Sensitivity analysis and external adjustment for unmeasured confounders in epidemiologic database studies of therapeutics, Pharmacoepidemiol Drug Saf 15(2006) 291-303. 10.1002/pds.1200.
18 J. Wetterslev, K. Thorlund, J. Brok, C. Gluud, Trial sequential analysis may establish when firm evidence is reached in cumulative meta-analysis, J. Clin. Epidemiol. 61(2008) 64-75. 10.1016/j.jclinepi.2007.03.013.
19 J. Brok, K. Thorlund, C. Gluud, J. Wetterslev, Trial sequential analysis reveals insufficient information size and potentially false positive results in many meta-analyses, J. Clin. Epidemiol. 61(2008) 763-9. 10.1016/j.jclinepi.2007.10.007.
20 K.W. Heng, A.H. Lee, S. Zhu, K.Y. Tham, E. Seow, Helmet use and bicycle-related trauma in patients presenting to an acute hospital in Singapore, Singapore Med J 47(2006) 367-72.
21 N.N. Sze, K.L. Tsui, S.C. Wong, F.L. So, Bicycle-related crashes in Hong Kong: is it possible to reduce mortality and severe injury in the metropolitan area? Hong Kong J. Emerg. Me. 18(2011) 136-43.
22 C.Y. Kuo, H.Y. Chiou, J.W. Lin, S.H. Tsai, M.R. Lin, Y.H. Chiang, et al., Characteristics and clinical outcomes of head-injured cyclists with and without helmets in urban and rural areas of Taiwan: A 15-year study, Traffic Inj. Prev. 18(2017) 193-8. 10.1080/15389588.2016.1235270.
23 F.T. McDermott, Helmets for bicyclists--another first for Victoria, Med J Aust 154(1991) 156-7.
24 S. Thomas, C. Acton, J. Nixon, D. Battistutta, W.R. Pitt, R. Clark, Effectiveness of bicycle helmets in preventing head injury in children: case-control study, BMJ 308(1994) 173-6. 10.1136/bmj.308.6922.173.
25 G.A. Jacobson, L. Blizzard, T. Dwyer, Bicycle injuries: road trauma is not the only concern, Aust N Z J Public Health 22(1998) 451-5. 10.1111/j.1467-842x.1998.tb01413.x.
26 M.M. Dinh, S. Roncal, T.C. Green, E. Leonard, A. Stack, C. Byrne, et al., Trends in head injuries and helmet use in cyclists at an inner-city major trauma centre, 1991-2010, Med J Aust 193(2010) 619-20.
27 M.M. Dinh, K. Curtis, R. Ivers, The effectiveness of helmets in reducing head injuries and hospital treatment costs: a multicentre study, Med J Aust 198(2013) 415, 417. 10.5694/mja12.11580.
28 M.M. Dinh, C. Kastelein, R. Hopkins, T.J. Royle, K.J. Bein, D.R. Chalkley, et al., Mechanisms, injuries and helmet use in cyclists presenting to an inner city emergency department, Emerg. Med. Australas. 27(2015) 323-7. 10.1111/1742-6723.12407.
29 M.R. Bambach, R.J. Mitchell, R.H. Grzebieta, J. Olivier, The effectiveness of helmets in bicycle collisions with motor vehicles: a case-control study, Accid Anal Prev 53(2013) 78-88. 10.1016/j.aap.2013.01.005.
30 A.S. McIntosh, A. Lai, E. Schilter, Bicycle Helmets: Head Impact Dynamics in Helmeted and Unhelmeted Oblique Impact Tests, Traffic Inj. Prev. 14(2013) 501-8. 10.1080/15389588.2012.727217.
31 C.T. Cooke, K.A. Margolius, G.A. Cadden, Cycling fatalities in Western Australia., The Medical journal of Australia 159(1993) 783-5. 10.5694/j.1326-5377.1993.tb141349.x.
32 C. Maimaris, C.L. Summers, C. Browning, C.R. Palmer, Injury patterns in cyclists attending an accident and emergency department: a comparison of helmet wearers and non-wearers, BMJ 308(1994) 1537-40. 10.1136/bmj.308.6943.1537.
33 K.S. Hansen, L.B. Engesaeter, A. Viste, Protective effect of different types of bicycle helmets, Traffic Inj. Prev. 4(2003) 285-90. 10.1080/714040486.
34 N. Airaksinen, P. Luthje, I. Nurmi-Luthje, Cyclist Injuries Treated in Emergency Department (ED): Consequences and Costs in South-eastern Finland in an Area of 100 000 Inhabitants, Ann Adv Automot Med 54(2010) 267-74.
35 E. Amoros, M. Chiron, J.L. Martin, B. Thelot, B. Laumon, Bicycle helmet wearing and the risk of head, face, and neck injury: a French case--control study based on a road trauma registry, Inj Prev 18(2012) 27-32. 10.1136/ip.2011.031815.
36 A. Malczyk. Head Injuries in Bicyclists and Associated Crash Characteristics. IRCOBI Conference 2014. International Research Council on the Biomechanics of Injury, Berlin (Germany); 2014.
37 D. Otte, Influences on the Risk of Injury of Bicyclists' Heads and Benefts of Bicycle Helmets in Terms of Injury Avoidance and Reduction of Injury Severity, SAE International Journal of Transportation Safety 2(2014) 257-67.
38 E. Zibung, L. Riddez, C. Nordenvall, Helmet use in bicycle trauma patients: a population-based study, Eur J Trauma Emerg Surg 41(2015) 517-21. 10.1007/s00068-014-0471-y.
39 E. Olofsson, O. Bunketorp, A. Andersson, Helmet use and injuries in children's bicycle crashes in the Gothenburg region, Safety Sci. 92(2017) 311-7. 10.1016/j.ssci.2015.11.024.
40 C. Juhra, B. Wieskotter, K. Chu, L. Trost, U. Weiss, M. Messerschmidt, et al., Bicycle accidents - do we only see the tip of the iceberg? A prospective multi-centre study in a large German city combining medical and police data, Injury 43(2012) 2026-34. 10.1016/j.injury.2011.10.016.
41 M. Rizzi. Cyclist Injuries Leading to Permanent Medical Impairment in Sweden and the Effect of Bicycle Helmets. IRCOBI Conference 2013. International Research Council on the Biomechanics of Injury, Gothenburg (Sweden); 2013.
42 C. Orsi, O.E. Ferraro, C. Montomoli, D. Otte, A. Morandi, Alcohol consumption, helmet use and head trauma in cycling collisions in Germany, Accid Anal Prev 65(2014) 97-104. 10.1016/j.aap.2013.12.019.
43 A. Bandte, F.S. Fritzsche, P. Emami, G. Kammler, K. Puschel, K. Krajewski, Sport-Related Traumatic Brain Injury with and without Helmets in Children, World Neurosurg. 111(2018) e434-9. 10.1016/j.wneu.2017.12.094.
44 R. Stier, P. Jehn, H. Johannsen, C.W. Muller, N.C. Gellrich, S. Spalthoff, Reality or wishful thinking: do bicycle helmets prevent facial injuries? Int J Oral Maxillofac Surg 48(2019) 1235-40. 10.1016/j.ijom.2019.02.018.
45 D.C. Thompson, R.S. Thompson, F.P. Rivara, M.E. Wolf, A case-control study of the effectiveness of bicycle safety helmets in preventing facial injury, Am. J. Public Health 80(1990) 1471-4. 10.2105/ajph.80.12.1471.
46 D.C. Thompson, F.P. Rivara, R.S. Thompson, Effectiveness of bicycle safety helmets in preventing head injuries. A case-control study, JAMA 276(1996) 1968-73.
47 D.W. Spaite, M. Murphy, E.A. Criss, T.D. Valenzuela, H.W. Meislin, A prospective analysis of injury severity among helmeted and nonhelmeted bicyclists involved in collisions with motor vehicles, J Trauma 31(1991) 1510-6. 10.1097/00005373-199111000-00008.
48 G. Li, S.P. Baker, C. Fowler, C. DiScala, Factors related to the presence of head injury in bicycle-related pediatric trauma patients, J Trauma 38(1995) 871-5. 10.1097/00005373-199506000-00007.
49 K.A. Finvers, R.T. Strother, N. Mohtadi, The effect of bicycling helmets in preventing significant bicycle-related injuries in children, Clin. J. Sport Med. 6(1996) 102-7.
50 S. Linn, D. Smith, S. Sheps, Epidemiology of bicycle injury, head injury, and helmet use among children in British Columbia: a five year descriptive study. Canadian Hospitals Injury, Reporting and Prevention Program (CHIRPP), Inj Prev 4(1998) 122-5. 10.1136/ip.4.2.122.
51 S. Shafi, J.C. Gilbert, F. Loghmanee, J.E. Allen, M.G. Caty, P.L. Glick, et al., Impact of bicycle helmet safety legislation on children admitted to a regional pediatric trauma center, J. Pediatr. Surg. 33(1998) 317-21. 10.1016/s0022-3468(98)90454-7.
52 S.T. Borglund, J.S. Hayes, J.M. Eckes, Florida's bicycle helmet law and a bicycle safety educational program: did they help? J. Emerg. Nurs. 25(1999) 496-500.
53 P. Crocker, B. King, H. Cooper, T.J. Milling, Self-reported alcohol use is an independent risk factor for head and brain injury among cyclists but does not confound helmets' protective effect, J. Emerg. Med. 43(2012) 244-50. 10.1016/j.jemermed.2011.05.029.
54 J. Wagner, A. Rai, F. Ituarte, A. Tillou, H. Cryer, J.R. Hiatt, Two-wheel vehicular trauma: an age-based analysis, Am Surg 78(2012) 1066-70.
55 R. Webman, L.A. Dultz, R.J. Simon, S.R. Todd, D. Slaughter, S. Jacko, et al., Helmet use is associated with safer bicycling behaviors and reduced hospital resource use following injury, J Trauma Acute Care Surg 75(2013) 877-81. 10.1097/TA.0b013e3182a85f97.
56 H. Lindsay, M. Brussoni, Injuries and helmet use related to non-motorized wheeled activities among pediatric patients, Chronic Dis Inj Can 34(2014) 74-81.
57 B.C. Gulack, B.R. Englum, K.L. Rialon, L.J. Talbot, J.E. Keenan, H.E. Rice, et al., Inequalities in the use of helmets by race and payer status among pediatric cyclists, Surgery 158(2015) 556-61. 10.1016/j.surg.2015.02.025.
58 M.Y. Harada, A. Gangi, A. Ko, D.Z. Liou, G. Barmparas, T. Li, et al., Bicycle trauma and alcohol intoxication, Int. J. Surg. 24(2015) 14-9. 10.1016/j.ijsu.2015.10.013.
59 R. Kaushik, I.M. Krisch, D.R. Schroeder, R. Flick, M.E. Nemergut, Pediatric bicycle-related head injuries: a population-based study in a county without a helmet law, Inj Epidemiol 2(2015) 16. 10.1186/s40621-015-0048-1.
60 M. Sethi, J. Heidenberg, S.P. Wall, P. Ayoung-Chee, D. Slaughter, D.A. Levine, et al., Bicycle helmets are highly protective against traumatic brain injury within a dense urban setting, Injury 46(2015) 2483-90. 10.1016/j.injury.2015.07.030.
61 J. Bergenstal, S.M. Davis, R. Sikora, D. Paulson, C. Whiteman, Pediatric bicycle injury prevention and the effect of helmet use: the West Virginia experience, W V Med J 108(2012) 78-81.
62 B. Joseph, A. Azim, A.A. Haider, N. Kulvatunyou, T. O'Keeffe, A. Hassan, et al., Bicycle helmets work when it matters the most, Am. J. Surg. 213(2017) 413-7. 10.1016/j.amjsurg.2016.05.021.
63 J.L. Phillips, Bicycle Helmet Use Trends and Related Risk of Mortality and Traumatic Brain Injury among Pediatric Trauma, Journal of Epidemiology and Public Health Reviews(2016).
64 S.P. Wall, D.C. Lee, S.G. Frangos, M. Sethi, J.H. Heyer, P. Ayoung-Chee, et al., The Effect of Sharrows, Painted Bicycle Lanes and Physically Protected Paths on the Severity of Bicycle Injuries Caused by Motor Vehicles, Safety (Basel) 2(2016). 10.3390/safety2040026.
65 K. Helak, D. Jehle, D. McNabb, A. Battisti, S. Sanford, M.C. Lark, Factors Influencing Injury Severity of Bicyclists Involved in Crashes with Motor Vehicles: Bike Lanes, Alcohol, Lighting, Speed, and Helmet Use, South. Med. J. 110(2017) 441-4. 10.14423/SMJ.0000000000000665.
66 F.P. Rivara, D.C. Thompson, R.S. Thompson, Epidemiology of bicycle injuries and risk factors for serious injury, Inj Prev 3(1997) 110-4. 10.1136/ip.3.2.110.
67 N. Persaud, E. Coleman, D. Zwolakowski, B. Lauwers, D. Cass, Nonuse of bicycle helmets and risk of fatal head injury: a proportional mortality, case-control study, CMAJ 184(2012) E921-3. 10.1503/cmaj.120988.
68 K.G. Hooten, G.J. Murad, Helmet use and cervical spine injury: a review of motorcycle, moped, and bicycle accidents at a level 1 trauma center, J Neurotrauma 31(2014) 1329-33. 10.1089/neu.2013.3253.
69 T. Benjamin, N.K. Hills, P.D. Knott, A.H. Murr, R. Seth, Association Between Conventional Bicycle Helmet Use and Facial Injuries After Bicycle Crashes, JAMA Otolaryngol Head Neck Surg 145(2019) 140-5. 10.1001/jamaoto.2018.3351.
70 R.J. McAdams, K. Swidarski, R.M. Clark, K.J. Roberts, J. Yang, L.B. Mckenzie, Bicycle-related injuries among children treated in US emergency departments, 2006-2015, Accid Anal Prev 118(2018) 11-7. 10.1016/j.aap.2018.05.019.
71 J.A. Harvey, W. Gibreel, A. Charafeddine, B. Sharaf, Helmet Wear and Craniofacial Trauma Burden: A Plea for Regulations Mandating Protective Helmet Wear, Craniomaxillofac Trauma Reconstr 10(2017) 197-203. 10.1055/s-0037-1601430.
72 G.B. Rodgers, Bicycle helmet use patterns in the United States. A description and analysis of national survey data, Accid Anal Prev 27(1995) 43-56.