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Globally, around 4,000 new human immunodeficiency virus (HIV) infections occur daily including among 1,100 youth aged 15–24 years (1). In China, newly diagnosed HIV cases among 15–24-year-olds — including young students — increased from 9,373 in 2010 to 15,790 in 2019 (2). To reduce new infections among students, a combination of prevention education and behavioral as well as biomedical interventions was implemented. This implementation calls for a geographically larger-scale study to assess and identify gaps in students’ HIV-related knowledge, attitudes, and practices (KAP). A survey of college students in 6 large cities was thus conducted in 2021, with a total of 54,052 respondents. In addition to finding knowledge gaps on HIV, especially on treatment, HIV self-testing (HIVST) and post-exposure prophylaxis (PEP), significant knowledge and behavior gaps in practicing safe sex were identified. These gaps, coupled with early sexual initiation, suggest that comprehensive prevention education should start early.
The survey was conducted from September to December 2021 at 30 colleges and universities in 6 large cities (Tianjin Municipality, Changchun City, Hangzhou City, Changsha City, Guangzhou City, and Chengdu City) that rank high in newly identified student infections. Convenience sampling along with a minimum number of classes per grade and a minimum of 600 samples per school was used. A WeChat-based anonymous questionnaire was distributed and accessed by respondents via a quick response (QR) code scan. Each internet protocol (IP) address was set for one enrollment. This structured online questionnaire included both sociodemographic and KAP questions related to HIV. The KAP questions focus on basic HIV information, PEP, HIVST, and sexual experiences. Results were presented with descriptive statistics, including proportions and their 95% confidence intervals (CIs). R software (Version 4.1.3, R Foundation for Statistical Computing, Vienna, Austria) was used for data cleaning and analysis.
A total of 54,052 valid questionnaires were collected, of which 59.5% (32,178/54,052) were female and 55.9% (30,211/54,052) were freshmen. Regarding sexual orientation, 86.9% (46,985/54,052) reported being heterosexual, whereas 1.7% (930/54,052) and 5.7% (3,058/54,052) reported being homosexual or bisexual, respectively. In addition, 10.0% (5,384/54,052) of respondents reported having had sexual experience, and 0.05% (26/54,052) reported testing positive for HIV in the latest test (Table 1).
Characteristic n Percentage (95%CI) Sex Male 21,874 40.5 (40.1, 40.9) Female 32,178 59.5 (59.1, 59.9) Age (years) ≤17 682 1.3 (1.2, 1.4) 18– 11,635 21.5 (21.2, 21.9) 19– 19,761 36.6 (36.2, 37.0) 20– 11,118 20.6 (20.2, 20.9) ≥21 10,856 20.1 (19.7, 20.4) School level First-tier 29,252 54.1 (53.7, 54.5) Second-tier 18,096 33.5 (33.1, 33.9) Third-tier 2,111 3.9 (3.7, 4.1) Vocational college 4,593 8.5 (8.3, 8.7) City of residence Tianjin 7,603 14.1 (13.8, 14.4) Changchun 8,762 16.2 (15.9, 16.5) Hangzhou 11,715 21.7 (21.3, 22.0) Changsha 15,136 28.0 (27.6, 28.4) Guangzhou 7,209 13.3 (13.1, 13.6) Chengdu 3,627 6.7 (6.5, 6.9) Grade Freshman 30,211 55.9 (55.5, 56.3) Sophomore 12,516 23.2 (22.8, 23.5) Junior 7,502 13.9 (13.6, 14.2) Senior 2,714 5.0 (4.8, 5.2) Graduate and higher 1,109 2.1 (1.9, 2.2) Sexual orientation Heterosexual 46,985 86.9 (86.6, 87.2) Homosexual 930 1.7 (1.6, 1.8) Bisexual 3,058 5.7 (5.5, 5.9) Not sure 3,079 5.7 (5.5, 5.9) Sexual experience Yes 5,384 10.0 (9.7, 10.2) No 48,668 90.0 (89.8, 90.3) Self-reported HIV testing result Positive 26 0.05 (0.03, 0.07) Negative 854 1.6 (1.5, 1.7) Unknown 226 0.4 (0.4, 0.5) Not tested 52,946 98.0 (97.8, 98.1) Abbreviation:CI=confidence interval; HIV=human immunodeficiency virus. Table 1.Sociodemographic characteristics of college students surveyed in 6 Chinese cities, 2021 (N=54,052).
The survey consisted of 9 questions on basic HIV knowledge. Knowledge of condom use (Q7, Q8, Q9) was relatively high with an over 90% passing rate. Nearly everyone (94.2%; 50,896/54,052) knew that intentional HIV transmission was illegal (Q3). However, as many as 29.0% (15,694/54,052) of respondents did not know that HIV cannot be cured (Q1). Furthermore, 34.9% (18,865/54,052) were unaware that being infected with sexually transmitted diseases (STDs) increases the risk of HIV infection (Q5), and 33.2% (17,940/54,052) were unaware that male homosexual behavior is the main route of HIV transmission among young Chinese students (Q4). Only 64.7% of respondents reported having heard of PEP, but nearly all respondents (91.7%, 49,549/54,052) expressed willingness to take the drug after possible HIV exposure to prevent seroconversion. When asked the multiple-choice question on where to find PEP drugs, the answers were Centers for Disease Control and Prevention (82.3%, 28,773/34,958), hospitals (83.1%, 29,067/34,958), community-based organizations (20.5%, 7,176/34,958), and online purchases (13.6%, 4,746/34,958). Nearly all respondents knew that an HIV test should be taken after risky behaviors (97.5%, 52,697/54,052) to know their status, start treatment, and suppress HIV replication (97.8%, 52,859/54,052). Furthermore, 98.2% (53,082/54,052) indicated that HIV testing could give them peace of mind. However, 37.4% (20,204/54,052) of respondents worry about others’ attitudes, and 19.7% (10,669/54,052) worry about a positive result. Still 57.9% (31,321/54,052) have not heard of HIV self-testing (HIVST) (Table 2).
Characteristic n Percentage (95%CI) Basic HIV knowledge Q1. AIDS cannot be cured Yes 38,358 71.0 (70.6, 71.3) No 15,694 29.0 (28.7, 29.4) Q2. A healthy-looking person can have HIV Yes 47,046 87.0 (86.8, 87.3) No 7,006 13.0 (12.7, 13.2) Q3. It is illegal to transmit HIV intentionally Yes 50,896 94.2 (94.0, 94.4) No 3,156 5.8 (5.6, 6.0) Q4. HIV among young Chinese students is mainly through male homosexual behavior Yes 36,112 66.8 (66.4, 67.2) No 17,940 33.2 (32.8, 33.6) Q5. Infection with STDs could increase the risk of HIV infection Yes 35,187 65.1 (64.7, 65.5) No 18,865 34.9 (34.5, 35.3) Q6. Substance abuse could increase the risk of HIV infection Yes 46,003 85.1 (84.8, 85.4) No 8,049 14.9 (14.6, 15.2) Q7. Proper use of condoms during sex reduces the risk of HIV transmission Yes 51,128 94.6 (94.4, 94.8) No 2,924 5.4 (5.2, 5.6) Q8. It is necessary to use condoms even when having sex with acquaintances Yes 50,191 92.9 (92.6, 93.1) No 3,861 7.1 (6.9, 7.4) Q9. Condoms should be used even if the genital looks normal Yes 50,110 92.7 (92.5, 92.9) No 3,942 7.3 (7.1, 7.5) Knowledge and attitudes toward PEP Heard of PEP Yes 34,958 64.7 (64.3, 65.1) No 19,094 35.3 (34.9, 35.7) Knowledge on where to get PEP drugs (n=34,958) Centers for Disease Control and Prevention Yes 28,773 82.3 (81.9, 82.7) No 6,185 17.7 (17.3, 18.1) Hospitals Yes 29,067 83.1 (82.8, 83.5) No 5,891 16.9 (16.5, 17.2) Community-based organizations Yes 7,176 20.5 (20.1, 21.0) No 27,782 79.5 (79.0, 79.9) Purchase online Yes 4,746 13.6 (13.2, 13.9) No 30,212 86.4 (86.1, 86.8) Willing to use PEP after risky behavior Yes 49,549 91.7 (91.4, 91.9) No 800 1.5 (1.4, 1.6) Not sure 3,703 6.9 (6.6, 7.1) Knowledge and attitudes toward HIV testing and counseling I should seek HIV testing and counseling after risky behavior Yes 52,697 97.5 (97.4, 97.6) No 1,355 2.5 (2.4, 2.6) Testing helps me know my status, start early treatment, and suppress HIV replication Yes 52,859 97.8 (97.7, 97.9) No 1,193 2.2 (2.1, 2.3) HIV testing gives me peace of mind Yes 53,082 98.2 (98.1, 98.3) No 970 1.8 (1.69, 1.91) Worry about others’ attitude after HIV testing Yes 20,204 37.4 (37.0, 37.8) No 33,848 62.6 (62.2, 63.0) Worry about positive HIV testing results Yes 10,669 19.7 (19.4, 20.1) No 43,383 80.3 (79.9, 80.6) Heard of HIV self-testing Yes 22,731 42.1 (41.6, 42.5) No 31,321 57.9 (57.5, 58.4) Abbreviation: AIDS=acquired immunodeficiency syndrome;CI=confidence interval; HIV=human immunodeficiency virus; PEP=post-exposure prophylaxis; STDs=sexually transmitted diseases. Table 2.HIV/AIDS-related knowledge, attitudes of college students surveyed in 6 Chinese cities, 2021 (N=54,052).
Among those who reported sexual experience, 33.2% (1,790/5,384) first had sex at the age of 18, followed by 22.3% (1,203/5,384) at 17 or below, and 17.4% (937/5,384) at 20. Among the first sexual experiences, 2.2% (116/5,384) were forced sex, 9.1% (489/5,384) were sex between males, and 72.4% (3,896/5,384) were with correct condom use. Among them, 84.9% (4,573/5,384) had sex in the past 12 months, of which 94.2% (4,307/4,573) reported having a fixed partner. Of those with fixed partners, 71.4% (3,076/4,307) reported consistent condom use. However, 29.7% (1,359/4,573) reported casual sex, with 65.5% (890/1,359) reporting consistent condom use. In addition, 15.5% (708/4,573) reported sex with a commercial partner, during which 64.3% (455/708) reported consistent condom use. Furthermore, 2.4% (109/4,573) reported drug use before/during sex. Approximately 6.4% (292/4,573) reported male homosexual intercourse in the past 12 months, of whom 36.0% had a role of either exclusively receptive anal sex (36.0%, 105/292) or mixed receptive and insertive anal sex (34.2%, 100/292). Among them, 42.1% (123/292) reported having more than one homosexual partner in the past 12 months. Overall, only 47.6% (139/292) reported consistent condom use during sex with another male (Table 3).
Characteristic n Percentage (95%CI) First sex (n=5,384) Age at sexual debut (years) ≤17 1,203 22.3 (21.2, 23.5) 18– 1,790 33.2 (32.0, 34.5) 19– 897 16.7 (15.7, 17.7) 20– 937 17.4 (16.4, 18.4) ≥21 557 10.3 (9.6, 11.2) Forced sex at sexual debut Yes 116 2.2 (1.8, 2.6) No 5,268 97.8 (97.4, 98.2) Partner type at sexual debut Heterosexual 4,895 90.9 (90.1, 91.7) Homosexual 489 9.1 (8.33, 9.9) Condom use at sexual debut None 1,142 21.2 (20.1, 22.3) Incorrect use 346 6.4 (5.79, 7.12) Correct use 3,896 72.4 (71.1, 73.5) Sex behavior (past 12 months;n=4,573) Sex with fixed partner (past 12 months) Yes 4,307 94.2 (93.5, 94.8) No 266 5.8 (5.2, 6.5) Condom use with fixed sex partner (past 12 months;n=4,307) None 288 6.7 (6.0, 7.5) Not consistent use 943 21.9 (20.7, 23.2) Consistent use 3,076 71.4 (70.0, 72.8) Casual sex (past 12 months) Yes 1,359 29.7 (28.4, 31.1) No 3,214 70.3 (68.9, 71.6) Condom use with casual sex partner (past 12 months;n=1,359) None 204 15.0 (13.2, 17.0) Not consistent use 265 19.5 (17.4, 21.7) Consistent use 890 65.5 (62.9, 68.0) Commercial sex (past 12 months) Yes 708 15.5 (14.5, 16.6) No 3,865 84.5 (83.4, 85.5) Condom use with commercial sex partner (past 12 months;n=708) None 152 21.5 (18.5, 24.7) Not consistent use 101 14.3 (11.8, 17.1) Consistent use 455 64.3 (60.6, 67.8) Male homosexual behavior (past 12 months) Yes 292 6.4 (5.1, 7.1) No 4,281 93.6 (92.9, 94.3) Sex role (past 12 months;n=292) Receptive 105 36.0 (30.5, 41.8) Insertive 87 29.8 (24.7, 35.5) Receptive and insertive 100 34.2 (28.9, 40.0) Homosexual sex partner number (past 12 months;n=292) 1 169 57.9 (52.0, 63.6) 2–9 100 34.2 (28.9, 40.0) 10– 23 7.9 (5.2, 11.7) Condom use with homosexual partner (past 12 months;n=292) None 89 30.5 (25.3, 36.2) Not consistent use 64 21.9 (17.4, 27.2) Consistent use 139 47.6 (41.8, 53.5) Any drug use before/during sex (past 12 months) Yes 109 2.4 (1.97, 2.9) No 4,464 97.6 (97.1, 98.0) HIV testing and counseling practices (n=1,106) Number of HIV tests taken 1 746 67.5 (64.6, 70.2) 2– 344 31.1 (28.4, 33.9) 10– 5 0.5 (0.2, 1.1) 20– 11 1.0 (0.5, 1.8) The last HIV test was in the past 6 months 531 48.0 (45.0, 51.0) 7–12 months 148 13.4 (11.5, 15.6) 1–2 years 177 16.0 (13.9, 18.3) ≥2 years 250 22.6 (20.2, 25.2) Ever had HIV self-testing Yes 361 32.6 (29.9, 35.5) No 745 67.4 (64.5, 70.1) Reason for not doing HIV self-testing (n=745) Unaware of where to obtain HIV self-testing kits Yes 186 25.0 (21.9, 28.3) No 213 28.6 (25.4, 32.0) No answer 346 46.4 (42.8, 50.1) Unsure about how to conduct HIV self-testing Yes 136 18.3 (15.6, 21.3) No 263 35.3 (31.9, 38.9) No answer 346 46.4 (42.8, 50.1) Distrustful of the result of HIV self-testing Yes 55 7.4 (5.7, 9.6) No 344 46.2 (42.6, 49.8) No answer 346 46.4 (42.8, 50.1) Unsure about what to do after HIV self-testing Yes 75 10.1 (8.1, 12.5) No 324 43.5 (39.9, 47.1) No answer 346 46.4 (42.8, 50.1) Abbreviation:CI=confidence interval; HIV=human immunodeficiency virus. Table 3.Sex experience and HIV testing among college students in 6 Chinese cities, 2021 (N=5,384).
Among all respondents, 1,106 (2.0%, 1,106/54,052) reported ever having had an HIV test, with 67.5% (746/1,106) of them testing only once. Nearly half (48.0%, 531/1,106) had an HIV test in the past 6 months, and 32.6% (361/1,106) have had an HIVST. As for the major reasons for not using HIVST, 25.0% (186/745) did not know where to obtain HIVST kits and 18.3% (136/745) did not know how to conduct an HIVST.
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The Implementation Plan for the Containment and Control of HIV/AIDS (2019–2022), jointly released by the National Health Commission and nine other ministries and commissions, defines the target HIV knowledge rate among college students at 95% (3). In this survey, some basic HIV knowledge questions scored as low as around 65% (Q4, Q5) and 71% (Q1). While the sample’s high proportion of freshmen may negatively affect HIV knowledge results, HIV knowledge among college students as a whole falls short in both structure and comprehensiveness, as seen in the low-scored questions above. Over 90% of respondents are open to taking PEP to prevent HIV infection after unprotected sex, however, the 64.7% awareness rate and the lack of knowledge of where to find it impede access to PEP. HIVST, given its convenience and confidentiality (4), has been proven as a preferred testing method by college students (5). Additionally, HIVST kits can often be obtained from campus vending machines or online shops (6-7). However, over half of the respondents have not heard of HIVST, suggesting the need for its more prominent role in college prevention education and health services.
About 10% of respondents reported having had sexual experiences. The mean age for sexual debut was 18.39 years, which is consistent with the results of previous research (8). Among them, 22.3% reported first having sex at 17 or below and 33.2% reported having sex at the age of 18, mostly around a time before entering college or during the freshman year. Early sexual debut is associated with unintended pregnancy, more sexual partners, and unprotected sex (9). Future prevention education should therefore highlight preparedness before sexual debut. The correct condom use rate was low at first sex, and consistent condom use rates were low for sex in the past 12 months. In addition, 292 male respondents reported having sex with another male in the past 12 months, with a low rate of consistent condom use (47.6%). The risks of unprotected sex should thus be discussed in greater depth in prevention education, coupled with condom availability, including for men who have sex with men (MSM). In the present survey, 2.0% of respondents reported having had an HIV test. As voluntary HIV testing becomes a process of education and intervention, promoting HIV testing can add great value, especially for students with sexual experiences.
The HIV knowledge rate was compared with a previous study conducted in Henan Province (10). The questions with low awareness rates were similar (Q1, Q4). Therefore, this survey can represent both the knowledge gaps of college students and where the gaps are.
This study has several limitations. First, the self-reported data may lead to underreporting of “not-encouraged behaviors” (i.e., unprotected sex). Second, considering the cross-sectional study design, recall bias may exist on past events. Third, as students from lower grades were over represented, further analysis is needed to factor in grade levels.
Overall, this survey provided empirical guidance on HIV education among students. First, as over half of respondents with sexual experience reported their first sex at or before age 18 and condom use rate was low, prevention education should begin no later than middle school. Second, the curriculum should be specific about risky sexual behaviors, including unprotected sex between males. Third, college HIV prevention must integrate education with access to services, including those on HIVST and PEP.
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Dr. Hao Yang, Ms. Wang Xinlun, and Mr. Jacob Wood.
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No conflicts of interest.
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