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Neuropsychiatry
RESEARCH PAPER
Mortality and morbidity 15 years after hospital admission with mild head injury: a prospective case-controlled population study T M McMillan,1 C J Weir,2 J Wainman-Lefley1 1
Institute of Health and Wellbeing, MVLS, University of Glasgow, Glasgow, UK 2 Centre for Population Health Sciences, University of Edinburgh and Edinburgh Health Services Research Unit, Edinburgh, UK Correspondence to Professor T M McMillan, Institute of Health and Wellbeing, University of Glasgow, Gartnavel Royal Hospital, 1055 Great Western Road, Glasgow G12 0XH, UK; thomas.mcmillan@glasgow. ac.uk Received 18 November 2013 Revised 4 February 2014 Accepted 12 February 2014 Published Online First 12 March 2014
ABSTRACT Objective To investigate mortality rate in a population of adults admitted to hospital with mild head injury (MHI) 15 years later. Design A prospective case control, record linkage study. Participants 2428 adults with MHI and an equal number of community controls (CC) were case-matched for age, gender and social deprivation. A further control group admitted with a non-head injury was in addition matched for duration of hospital admission. Controls with a history of head injury prior to study entry were excluded. Main outcome measures Death or survival 15 years poststudy entry. Results Mortality per 1000 per year after MHI (24.49; 95% CI 23.21 to 25.79) was higher than in CC (13.34; 95% CI 12.29 to 14.44; p
Neuropsychiatry
RESEARCH PAPER
Mortality and morbidity 15 years after hospital admission with mild head injury: a prospective case-controlled population study T M McMillan,1 C J Weir,2 J Wainman-Lefley1 1
Institute of Health and Wellbeing, MVLS, University of Glasgow, Glasgow, UK 2 Centre for Population Health Sciences, University of Edinburgh and Edinburgh Health Services Research Unit, Edinburgh, UK Correspondence to Professor T M McMillan, Institute of Health and Wellbeing, University of Glasgow, Gartnavel Royal Hospital, 1055 Great Western Road, Glasgow G12 0XH, UK; thomas.mcmillan@glasgow. ac.uk Received 18 November 2013 Revised 4 February 2014 Accepted 12 February 2014 Published Online First 12 March 2014
ABSTRACT Objective To investigate mortality rate in a population of adults admitted to hospital with mild head injury (MHI) 15 years later. Design A prospective case control, record linkage study. Participants 2428 adults with MHI and an equal number of community controls (CC) were case-matched for age, gender and social deprivation. A further control group admitted with a non-head injury was in addition matched for duration of hospital admission. Controls with a history of head injury prior to study entry were excluded. Main outcome measures Death or survival 15 years poststudy entry. Results Mortality per 1000 per year after MHI (24.49; 95% CI 23.21 to 25.79) was higher than in CC (13.34; 95% CI 12.29 to 14.44; p
