Development of a risk estimation model for condomless sex among college students in Zhuhai, China: a cross-sectional study
Abstract Background Condom use at last intercourse is an effective indicator for human immunodeficiency virus (HIV) prevention. To identify at-risk individuals and improve prevention strategies, this study explored factors associated with condomless sex at last intercourse in the last year and devel...
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| Format: | Article |
| Language: | English |
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BMC
2024-03-01
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| Series: | BMC Public Health |
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| Online Access: | https://doi.org/10.1186/s12889-024-18183-9 |
| _version_ | 1827321217026097152 |
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| author | Ying Huang Yi Zhou Yeting Hong Wencan Dai Kaihao Lin Yawei Liu Yao Yan Shanzi Huang Xiaofeng Li Yi Yang Hongbo Jiang |
| author_facet | Ying Huang Yi Zhou Yeting Hong Wencan Dai Kaihao Lin Yawei Liu Yao Yan Shanzi Huang Xiaofeng Li Yi Yang Hongbo Jiang |
| author_sort | Ying Huang |
| collection | DOAJ |
| description | Abstract Background Condom use at last intercourse is an effective indicator for human immunodeficiency virus (HIV) prevention. To identify at-risk individuals and improve prevention strategies, this study explored factors associated with condomless sex at last intercourse in the last year and developed a risk estimation model to calculate the individual possibility of condomless sex among college students in Zhuhai, China. Methods A cross-sectional study was conducted among 1430 college students who had sex in the last year from six universities in Zhuhai. The least absolute shrinkage and selection operator (LASSO) and logistic regression were performed to explore the predictors of condomless sex. The nomogram was constructed to calculate the individual possibility of condomless sex. Discrimination and calibration of the nomogram were evaluated using the area under the receiver-operator characteristic curve (AUROC) and the calibration curve. Results The proportion of students who had condomless sex at last intercourse was 18.2% (260/1430). Students who had experienced more types of intimate partner violence (aOR, 1.58; 95% CI, 1.31 ~ 1.92) and had anal sex (aOR, 1.75; 95% CI, 1.06 ~ 2.84) were more likely to have condomless sex. Students who had heterosexual intercourse (aOR, 0.37; 95% CI, 0.21 ~ 0.70), used condoms at first sex (aOR, 0.20; 95% CI, 0.14 ~ 0.27), had high attitudes towards condom use (aOR, 0.87; 95% CI, 0.80 ~ 0.95) and self-efficacy for condom use (aOR, 0.84; 95% CI, 0.78 ~ 0.90) were less likely to have condomless sex. The nomogram had high accuracy with an AUROC of 0.83 and good discrimination. Conclusions Intimate partner violence, anal sex, condom use at first sex, attitude towards condom use, and self-efficacy for condom use were associated with condomless sex among college students. The nomogram was an effective and convenient tool for calculating the individualized possibility of condomless sex among college students. It could help to identify individuals at risk and help universities and colleges to formulate appropriate individualized interventions and sexual health education programs. |
| first_indexed | 2024-04-25T01:02:29Z |
| format | Article |
| id | doaj.art-269b58970806471d95ee2073c8c6b650 |
| institution | Directory Open Access Journal |
| issn | 1471-2458 |
| language | English |
| last_indexed | 2024-04-25T01:02:29Z |
| publishDate | 2024-03-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Public Health |
| spelling | doaj.art-269b58970806471d95ee2073c8c6b6502024-03-10T12:23:40ZengBMCBMC Public Health1471-24582024-03-0124111110.1186/s12889-024-18183-9Development of a risk estimation model for condomless sex among college students in Zhuhai, China: a cross-sectional studyYing Huang0Yi Zhou1Yeting Hong2Wencan Dai3Kaihao Lin4Yawei Liu5Yao Yan6Shanzi Huang7Xiaofeng Li8Yi Yang9Hongbo Jiang10Department of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical UniversityZhuhai Center for Disease Control and PreventionDepartment of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical UniversityZhuhai Center for Disease Control and PreventionDepartment of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical UniversityZhuhai Center for Disease Control and PreventionDepartment of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical UniversityZhuhai Center for Disease Control and PreventionZhuhai Center for Disease Control and PreventionDepartment of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical UniversityDepartment of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical UniversityAbstract Background Condom use at last intercourse is an effective indicator for human immunodeficiency virus (HIV) prevention. To identify at-risk individuals and improve prevention strategies, this study explored factors associated with condomless sex at last intercourse in the last year and developed a risk estimation model to calculate the individual possibility of condomless sex among college students in Zhuhai, China. Methods A cross-sectional study was conducted among 1430 college students who had sex in the last year from six universities in Zhuhai. The least absolute shrinkage and selection operator (LASSO) and logistic regression were performed to explore the predictors of condomless sex. The nomogram was constructed to calculate the individual possibility of condomless sex. Discrimination and calibration of the nomogram were evaluated using the area under the receiver-operator characteristic curve (AUROC) and the calibration curve. Results The proportion of students who had condomless sex at last intercourse was 18.2% (260/1430). Students who had experienced more types of intimate partner violence (aOR, 1.58; 95% CI, 1.31 ~ 1.92) and had anal sex (aOR, 1.75; 95% CI, 1.06 ~ 2.84) were more likely to have condomless sex. Students who had heterosexual intercourse (aOR, 0.37; 95% CI, 0.21 ~ 0.70), used condoms at first sex (aOR, 0.20; 95% CI, 0.14 ~ 0.27), had high attitudes towards condom use (aOR, 0.87; 95% CI, 0.80 ~ 0.95) and self-efficacy for condom use (aOR, 0.84; 95% CI, 0.78 ~ 0.90) were less likely to have condomless sex. The nomogram had high accuracy with an AUROC of 0.83 and good discrimination. Conclusions Intimate partner violence, anal sex, condom use at first sex, attitude towards condom use, and self-efficacy for condom use were associated with condomless sex among college students. The nomogram was an effective and convenient tool for calculating the individualized possibility of condomless sex among college students. It could help to identify individuals at risk and help universities and colleges to formulate appropriate individualized interventions and sexual health education programs.https://doi.org/10.1186/s12889-024-18183-9College studentsCondomless sexCondom useLASSONomogram |
| spellingShingle | Ying Huang Yi Zhou Yeting Hong Wencan Dai Kaihao Lin Yawei Liu Yao Yan Shanzi Huang Xiaofeng Li Yi Yang Hongbo Jiang Development of a risk estimation model for condomless sex among college students in Zhuhai, China: a cross-sectional study BMC Public Health College students Condomless sex Condom use LASSO Nomogram |
| title | Development of a risk estimation model for condomless sex among college students in Zhuhai, China: a cross-sectional study |
| title_full | Development of a risk estimation model for condomless sex among college students in Zhuhai, China: a cross-sectional study |
| title_fullStr | Development of a risk estimation model for condomless sex among college students in Zhuhai, China: a cross-sectional study |
| title_full_unstemmed | Development of a risk estimation model for condomless sex among college students in Zhuhai, China: a cross-sectional study |
| title_short | Development of a risk estimation model for condomless sex among college students in Zhuhai, China: a cross-sectional study |
| title_sort | development of a risk estimation model for condomless sex among college students in zhuhai china a cross sectional study |
| topic | College students Condomless sex Condom use LASSO Nomogram |
| url | https://doi.org/10.1186/s12889-024-18183-9 |
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