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Occupational Medicine Advance Access originally published online on March 17, 2009
Occupational Medicine 2009 59(3):195-196; doi:10.1093/occmed/kqp028
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R. Bridger, Institute of Naval Medicine. © British Crown Copyright 2009/MOD Reproduced with the permission of the Controller of Her Britannic Majesty's Stationery Office (UK)

Short Reports

Smoking, BMI and psychological strain and fitness in the Naval Service

Robert Bridger, Kathy Munnoch, Angela Dew and Kate Brasher

Human Factors Department, Institute of Naval Medicine, Crescent Road, Alverstoke PO12 2DL, UK

Background Data from the Naval Service (NS) cohort study of psychological strain were extracted and analysed to investigate the relationship between self-reported health and lifestyle factors and medical fitness. Identification of factors associated with medical downgrading is of obvious value in shaping future health and safety policy and in understanding the relative contributions of physical and psychosocial factors to adverse occupational health outcomes.

Aims To identify variables associated with a lack of fitness to serve.

Method Extraction and analysis of data from the Phase I of the study, with a binary outcome of fitness as the dependent variable, controlling for psychosocial and other confounders.

Results Stepwise logistic regression analysis found statistically significant effects due to smoking, body mass index (BMI), General Health Questionnaire (GHQ)-12 and work–family conflict. The model accounted for 5.6% of the variance in medical grading, 3% of which was due to smoking.

Conclusions With psychosocial factors and GHQ-12 scores accounted for, personnel who were not fully fit for NS were found to be more likely to be smokers and to have a high BMI (≥25).

Keywords      Body mass index; fitness for work; smoking

Correspondence to: Robert Bridger, Institute of Naval Medicine, Crescent Road, Alverstoke PO12 2DL, UK. Tel: +44 (0)2392 768220; fax: +44 (0)2392 504823; e-mail: hhfd{at}inm.mod.uk


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