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Body mass index, sexual behaviour, and sexually transmitted infections: an analysis using the NHANES 1999-2000 data.
BMC Public Health. 2006 Aug 02; 6:199.BP

Abstract

BACKGROUND

Factors determining human sexual behaviour are not completely understood, but are important in the context of sexually transmitted disease epidemiology and prevention. Being obese is commonly associated with a reduced physical attractiveness but the associations between body mass index, sexual behaviour and the risk of acquiring sexually transmitted infections has never been studied.

METHODS

The National Health and Nutrition Examination Survey (NHANES) files of 1999-2000 were used. Linear regression was used to relate the reported number of sex partners in the last year and lifetime to Body Mass Index (BMI). Logistic regression was used to relate Herpes Simplex Virus type II (HSV-2) antibodies to BMI and other variables.

RESULTS

Data on 979 men and 1250 women were available for analysis. Obese (mean number of partners for men:1.12, women: 0.93) and overweight (mean for men: 1.38, women: 1.03) individuals reported fewer partners than individuals of normal BMI (mean for men: 2.00, women: 1.15) in the last year (p < .0.01 & p < 0.05 for men, p < 0.05 & n.s. for women). The same relationship held for lifetime partners in men (mean 11.94, 18.80, and 22.08 for obese, overweight and normal BMI respectively (p < 0.05 & n.s. for obese and overweight vs normal respectively), but not in women (mean 7.96, 4.77, and 5.24 respectively). HSV-2 antibodies were significantly correlated with the number of lifetime partners in both men and women, with the odds of being HSV-2 positive increasing by 0.6% (p < 0.01) and 2.7% (p < 0.01) for men and women respectively. HSV-2 antibodies increased with age, even after adjustment for lifetime partners (p < 0.01). Being obese (HSV-2 prevalence 15.9 and 34.9% for men and women respectively) or overweight (HSV-2 prevalence 16.7 and 29.3 for men and women respectively) was not associated with HSV-2 antibodies (HSV-2 prevalence for normal BMI: 15.6 and 23.2% respectively), independent of whether the association was adjusted for life time sexual partners or not. There was evidence of substantial misreporting of sexual behaviour.

CONCLUSION

Obese and overweight individuals, especially men, self report fewer sex partners than individuals of normal weight, but surprisingly this is not reflected in their risk of HSV-2 infection. HSV-2 antibodies provide information not contained in self-reported number of partners and may better estimate sexual risk than self-reported behaviour.

Authors+Show Affiliations

Department of Community Medicine, United Arab Emirates University, Al Ain, UAE. nico.nagelkerke@uaeu.ac.aeNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16884541

Citation

Nagelkerke, Nico J D., et al. "Body Mass Index, Sexual Behaviour, and Sexually Transmitted Infections: an Analysis Using the NHANES 1999-2000 Data." BMC Public Health, vol. 6, 2006, p. 199.
Nagelkerke NJ, Bernsen RM, Sgaier SK, et al. Body mass index, sexual behaviour, and sexually transmitted infections: an analysis using the NHANES 1999-2000 data. BMC Public Health. 2006;6:199.
Nagelkerke, N. J., Bernsen, R. M., Sgaier, S. K., & Jha, P. (2006). Body mass index, sexual behaviour, and sexually transmitted infections: an analysis using the NHANES 1999-2000 data. BMC Public Health, 6, 199.
Nagelkerke NJ, et al. Body Mass Index, Sexual Behaviour, and Sexually Transmitted Infections: an Analysis Using the NHANES 1999-2000 Data. BMC Public Health. 2006 Aug 2;6:199. PubMed PMID: 16884541.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Body mass index, sexual behaviour, and sexually transmitted infections: an analysis using the NHANES 1999-2000 data. AU - Nagelkerke,Nico J D, AU - Bernsen,Roos M D, AU - Sgaier,Sema K, AU - Jha,Prabhat, Y1 - 2006/08/02/ PY - 2006/03/18/received PY - 2006/08/02/accepted PY - 2006/8/4/pubmed PY - 2006/9/30/medline PY - 2006/8/4/entrez SP - 199 EP - 199 JF - BMC public health JO - BMC Public Health VL - 6 N2 - BACKGROUND: Factors determining human sexual behaviour are not completely understood, but are important in the context of sexually transmitted disease epidemiology and prevention. Being obese is commonly associated with a reduced physical attractiveness but the associations between body mass index, sexual behaviour and the risk of acquiring sexually transmitted infections has never been studied. METHODS: The National Health and Nutrition Examination Survey (NHANES) files of 1999-2000 were used. Linear regression was used to relate the reported number of sex partners in the last year and lifetime to Body Mass Index (BMI). Logistic regression was used to relate Herpes Simplex Virus type II (HSV-2) antibodies to BMI and other variables. RESULTS: Data on 979 men and 1250 women were available for analysis. Obese (mean number of partners for men:1.12, women: 0.93) and overweight (mean for men: 1.38, women: 1.03) individuals reported fewer partners than individuals of normal BMI (mean for men: 2.00, women: 1.15) in the last year (p < .0.01 & p < 0.05 for men, p < 0.05 & n.s. for women). The same relationship held for lifetime partners in men (mean 11.94, 18.80, and 22.08 for obese, overweight and normal BMI respectively (p < 0.05 & n.s. for obese and overweight vs normal respectively), but not in women (mean 7.96, 4.77, and 5.24 respectively). HSV-2 antibodies were significantly correlated with the number of lifetime partners in both men and women, with the odds of being HSV-2 positive increasing by 0.6% (p < 0.01) and 2.7% (p < 0.01) for men and women respectively. HSV-2 antibodies increased with age, even after adjustment for lifetime partners (p < 0.01). Being obese (HSV-2 prevalence 15.9 and 34.9% for men and women respectively) or overweight (HSV-2 prevalence 16.7 and 29.3 for men and women respectively) was not associated with HSV-2 antibodies (HSV-2 prevalence for normal BMI: 15.6 and 23.2% respectively), independent of whether the association was adjusted for life time sexual partners or not. There was evidence of substantial misreporting of sexual behaviour. CONCLUSION: Obese and overweight individuals, especially men, self report fewer sex partners than individuals of normal weight, but surprisingly this is not reflected in their risk of HSV-2 infection. HSV-2 antibodies provide information not contained in self-reported number of partners and may better estimate sexual risk than self-reported behaviour. SN - 1471-2458 UR - https://www.unboundmedicine.com/medline/citation/16884541/Body_mass_index_sexual_behaviour_and_sexually_transmitted_infections:_an_analysis_using_the_NHANES_1999_2000_data_ L2 - https://bmcpublichealth.biomedcentral.com/articles/10.1186/1471-2458-6-199 DB - PRIME DP - Unbound Medicine ER -