Protective Sexual Behaviors and Their Motives, in University Students in the Health Area

Sexually transmitted infections (STIs) and unwanted pregnancy (UP) are becoming a problem that affects significantly the younger segment of the population so, not only in the aspect of health, but in the development of its future life both emotional and school and work. Despite easy access to information, young people still have risky sexual practices. This research highlights protective practices with the aim of developing information and training tools that help them avoid risky behaviors that lead to dangerous situations in health and its future. It was a descriptive study with students who have recently entered of the Faculty of Medicine enrolled in school cycle in 2015 in the bachelor’s degree in Medicine and surgery, Nutrition and dietetics, and Rehabilitation programs who agreed to participate by letter of informed consent to respond to the Instrument for the Evaluation of Psychological Variables and Sexual Risk Behaviors. There were 221 participants, 166 in Medicine and surgery, 28 in Nutrition and dietetics, and 27 in Rehabilitation with an average of 18.6 years, 51% male and 49% female. A protective behavior was not having had sex with penetration (72.3%), due to wanting to have them with whom they are in love and to avoid STIs more frequently in female; another protective behavior was not having had oral sex with occasional partners or unprotected sex workers (15.4%); the reasons were to have wanted to use and that the couple asked him to use it, to avoid sexually transmitted infections because the couple’s sexual history is unknown. Regarding the likelihood of having sexual penetration (SP), participants who have not had it reliable and safest tool against STIs and UP.


Sexual Behavior
Sexual behaviors are complex psychological and physiological processes with their own characteristics that could manifest themselves from the most primitive impulses to the most sophisticated emotions; they are influenced by cultural and social situations, past and present and their expression; the sexuality is a dynamic process that changes throughout life where emotions and feelings, the body and the knowledge we have about it are involved [1].
These behaviors are related to eroticism, emotional bonding, reproduction and genetic and physical sex that, according to each person, will have different sexual behaviors that can be experienced in different forms such as heterosexuality, homosexuality, transsexuality, bisexuality or polyamory [2].
All individuals have the right to exercise their sexuality, to decide when to start their sexual activity, postpone it, its frequency and with whom to perform it; however, this workout also requires responsibility, which begins with being informed of protection methods to prevent possible negative consequences, such as unwanted pregnancies (UP) and the spread of sexually transmitted infections (STIs) [3].
According to the Mexican National Health and Nutrition Survey (ENSANUT) 2012, in Mexico, which is the last one that has included data on sexuality, 23% of the population from 12 to 19 years of age has started their sexual life, with a higher proportion of men (25.5%) than of women (20.5%). Regarding the use of condoms, 14.7% of men and 33% of women did not use during the first sexual intercourse [4].
Adolescence is the stage in which the onset of sexual intercourse occurs most [5] and it is very common not to use protection at that age, most of the time due to lack of information, although the socioeconomic aspect also influences, since it is more likely that a young man with greater education knows how to use and where to get a contraceptive or preservative than young people with limited resources who have less accessibility due to economic and cultural causes [6].

Sexual Risk Behaviors and Protective Sexual Behaviors
Young people have been considered as a healthy age group, but at present, lifestyles have been modified and these involve risky sexual behaviors such as the early onset of active sexual life, having multiple partners, having occasional partners, vaginal or anal penetration without a condom, the practice of oral sex 3 Advances in Sexual Medicine without a condom, cunnilingus, anilingus and direct skin-skin or mucosa-skin contact, which are the cause of UP and STIs, situation that has been reported in different studies [7].
In Slovakia, a study was carried out to identify the psychological and behavioral factors associated with sexual risk behaviors in 832 young people whose age was 19 to 28 years; it was observed that 44% of men and 33% of women claimed to have had risky sexual practices under the influence of alcohol or a drug; 27% of men and 21% of women mentioned having 4 or more sexual partners; 72% of men and 81% of women have used the condom inconsistently; 9% of the men and 6% of the women had sex before the age of 16 [8].
At the University of Castilla-La Mancha, a study was conducted with 262 young students of social work and education; it was found that 90% had already had sex at 16.4 years on average. 86% used a condom during the first relationship. 16% reported having had sexual relationships with occasional partners despite the fact that 77.4% of students consider themselves sufficiently informed on issues of sexuality [9].
Estimates of the Joint United Nations Program on HIV/AIDS (UNAIDS 2010), 33 million people in the world were living with HIV, numbers that continue to increase. The most worrying thing is that 50% of infections by this virus are acquired between 15 and 24 years of age [10].
The increase in STIs is a source of concern for WHO, because every year more than 15% of adolescents are infected and it is worrisome that about 560,000 adolescents between 15 and 24 years of age are living with HIV/AIDS in the world In Mexico, STIs are among the five main reasons for consultation in health centers of the first level of care and it is one of the first ten causes of morbidity in patients aged 15 to 44 [12].
A study conducted with 659 students from the Autonomous University of adventure. Specifically, 59% of women and 31% of men practiced oral sex and 6% of men and 1% of women practiced anal sex. Therefore, it was concluded to promote the information and use of condoms as a contraceptive and prevention method against sexually transmitted infections [15].
There are also preventive or protective sexual behaviors that minimize or eliminate the risk of contracting a STIs. These have positive short-term consequences that influence pleasant sexuality among those found: evade occasional couples and multiple couples; maintain sex with a stable partner; keep oral, vaginal or anal sex with condoms, the practice of cunnilingus and anilingus with protective plastic and evade sexual relations with people with ulcers or suppurations in their genitals [7].

Reasons
In this area of human sexuality, several factors that are associated with risky sexual practices have been reported, including the lack of maturity to exercise responsible sexuality, early onset of sexual life, low risk perception, pressures among the group of friends, increase in sexual partners, alcohol and drug abuse, ignorance of sexual rights and inadequate prevention programs. Although in recent years there has been greater publicity, this has not been enough, since young people do not yet exercise a free, responsible and pleasant sexuality that guides their coexistence and integral development [16].
A study conducted at the Autonomous University of the State of Mexico with 200 students of the bachelor's degrees of Health Education, International Trade, Systems Engineering and Transportation Engineering, showed that the use of condoms in young people is low, which places them as a group vulnerable to sexually transmitted infections and unwanted pregnancies even having all the information at hand [17]. The reasons were in 47.3% of men and 60% of women who did not have a condom at hand at the time of sexual intercourse, which reflects a lack of self-care when leaving the responsibility of their health to the couple. Another reason expressed by 42% of men and 25% of women is that it reduces sensitivity to the relationship.
These results show that as the years by, more young people begin their sexual life at an early age, which leads to a greater number of couples and sexual practices. Insecure and irresponsible sexual behaviors, as well as sexually transmitted infections and unplanned pregnancies, are health problems that occur daily and are known to young people due to the great ease of access to information to protect themselves; however, the incidence of sexually transmitted infections

Methodology
The Although sexual risk behaviors were also identified, the objective on the present work was to highlight protective sexual behaviors presented by the study population and were identified with the instrument.

Results
The study population consisted of 221 students who have recently entered of the Medicine and surgery, 12.6% (28) in Nutrition and dietetics, and 12.3% (27) to Rehabilitation programs, of which 51% (113) were men and 49% (108) were women with average age of 18.68 years.
In Table 1, it can be observed that the first protector behavior in the students that formed the study population was not having had sex with penetration with a frequency of 72.3% in slightly higher proportion in women (39.4%) than in men (32.9%).
When the data are observed according to the bachelor's degree, this behavior occurred more frequently in the women of Nutrition and dietetics (7.2%) and Rehabilitation (6.9%) than in the men, while in the bachelor's degree of Medicine and surgery it was in the men (28.9%).
The reasons that led these students not to have SP were: because they want to have sex with someone they are in love with (61.8%) and not to acquire sexually transmitted infections (1.4%).
Only 27.7% mentioned having had SP, twice the proportion of men (18.1%) than women (9.6%). In the bachelor's degree in Medicine and surgery (14.0%) and Nutrition and dietetics (3.2%) were men, who represented higher frequency, while in Rehabilitation were women (1.8%) Another protector behavior is not having unprotected oral sex (  bachelor's degree in Medicine and surgery are the ones who presented the most frequency, followed by the men and women of the bachelor's degree in Nutrition and dietetics (7.7% respectively) and in the end the men of the bachelor's degree in Rehabilitation (7.7%).
It could be observed as another protective factor that 100% of the students, who responded to having had oral sex, did not practice it with occasional couples or sex workers, 77% mentioned having them with their boyfriend or girlfriend and 23% with a friend or friend (Table 2), however, this does not guarantee to be exempt from acquiring STIs.
Of the students who mentioned having had oral sex, a very low percentage This situation is worrisome since 84.6% acknowledged not protecting themselves with condoms in their oral sex, a situation that is more frequent among men (38.5%) and women (30.7%) of the bachelor's degree in Medicine and surgery and men of the bachelor's degrees in Nutrition and dietetics (7.7%) and Rehabilitation (7.7%), as can be seen in Table 3.
It is important to consider that, in young people, sexual health is a difficult problem to control because sexuality involves emotions and feelings, so there is a high probability that SP will occur at any time.
Below, we present the data of 144 students who have not had SP and who answered the last part of the questionnaire where it is requested to imagine a situation where there is a high possibility of having SP.
In Table 4, it can be observed in a general way, that in men it is more or less    likely to inquire about the sexual history of their couples (20.2%), while, in women, they are quite likely to do so (19.4%).
When the results by bachelor's degree are observed, it can be seen that the men and women of the bachelor's degree in Medicine and surgery, and Nutrition and dietetics and the men of the degree in Rehabilitation, mentioned that they are less likely to inquire about the sexual background of their partner, while rehabilitation women are very likely to do so.    Table 6.
In the bachelor's degree in Medicine and surgery, men consider it more or less likely to do so, while women mentioned that it is quite likely. In the bachelor's degree in Nutrition and dietetics, there is an equal proportion of men who mentioned that it is not at all likely and very likely, unlike the women who mentioned that they are quite likely to do so. In the bachelor's degree in Rehabilitation, both men and women felt that they would be more or less likely to reject the proposal to reach caresses in sensitive areas of their body.
In Table 7, it can be observed that in general both men (31.2%) and women    the results are similar, both men and women consider it quite probable that they ask their partners to use a condom; while, in the bachelor's degree in Nutrition and dietetics, the same proportion of men felt that it would be unlikely and quite likely to do so, women consider it quite likely to ask their partners to use condoms in their sexual relations.

Discussion
Currently, the increase in sexually transmitted infections and unwanted pregnancies are becoming a problem that is significantly affecting the youngest sector of the population, not only in the aspect of health, but in development of their future life both emotional and school and work.
Some university research has made it clear that despite the information they have access to now, with great ease, they continue to have risky sexual practices, which urgently demands preventive actions at all levels of the school system.
Most of these investigations have been based on risk behaviors [22]. This paper highlights protective practices with the aim of developing information and training tools that help them avoid risky behaviors that lead to dangerous situations for health and their future.
The results show that a high percentage (72.3%) of the population of students who participated in the study had not had sex with penetration, being the average age 18.7 years, a situation that attracts attention because the current trend in the population young people start their active sex life between 15 and 18, as mentioned in the results of different studies [23] [24].
In the First National Survey on Sex conducted by Mitofsky in 2004 in Mexico, it was found that the average age of onset of active sexual life in the participating adolescents was 17.6 years, presenting a higher proportion between 15 -18 years, being the frequency higher in men (79.6%) than in women (51.7%) [25].
In a study conducted at the National Autonomous University of Mexico (UNAM), where 990 students from their different campuses were interviewed, it was found that the age of onset of sexual relations was 17.3, a situation that is different from the results of the present study [26]. However, according to the National Youth Survey 2010, in Yucatan it was found that 84.8% of the population surveyed decided not to have sexual relations, a figure slightly higher than in the present study [27].
The very determining reasons that the students mentioned for not having SP were: because they want to have SP with whom they are in love, for men (22. This situation may be due to sex education programs in schools that have sensitized adolescents to the problems involved in acquiring an STIs or the responsibility of being a father or mother in the early stages of life. Of the study population that claimed not to have had sex with penetration (160 people), only 8.2% (13 people) acknowledged having had oral sex. These results differ with a study conducted by Lama et al. (2008), where 30% of the participants mentioned having oral relationships [28].
Oral sex than anal sex, the use of sex toys, group sex, etc., is part of the so-called alternate sexual practices that are behavioral manifestations within the sexual field whose goal is the satisfaction of the participants according to DSM-IV [29], are influenced by many factors such as personal (self-esteem, moral, self-concept), cultural (religion, uses and customs), social norms (family, friends, community), education and gender, which are embodied in a concept known as permissiveness, which is defined as a flexible attitude towards various sexual practices, in the presence or absence of emotional bonding, whose purpose is satisfaction and not reproduction as in stages historical past [30]. It has reached a point where, as Weeks (2002) would say, "masculinity-femininity, normality-abnormality and the nature of intimate life are being subject to profound transformations, new ideologies that generate a more liberal and of greater acceptance [31]. "This is reflected in different studies, in the National Survey on Sex conducted in Mexico, more than 7% of participants mentioned having had group sex; one in ten used sex toys; half considered masturbation and oral sex as usual practices and one-tenth of homosexual relations [25] [32].
With regard to gender, 61.5% of the participants who mentioned having had oral sex were men and 38.5% women, this coincides with a qualitative study conducted by Cedillo (2015), with 434 students from two universities, where he found that men are the ones who practice oral sex the most, they like it better and they like it more [33].
On the other hand, it is worrisome that of the study population that had oral sex, 84.6% recognized that they did not use a condom, this result coincides with that found in the study by Valdez Montero, C. et al. (2015), mentioned above where it was found that 87.3% of the study population did not use a condom when they had oral sex [34]. This may be due in part to this type of relationship they had with people with whom they have an emotional bond and a close and long-term treatment; 77% mentioned that it was with their boyfriend or girlfriend and 23% with a friend. These results differ in frequency from that reported by De la Rubia J where 52% of the students practiced oral sex and agree that they preferably had this type of relationship with the partner [15].
Regarding imagining being in a situation with a high probability of having SP,  [37]. As Cañizo and Salinas comment in their study in 2010, "a possible explanation of the above could be due to the prevalence of machismo within Mexican society, since the value of men, in some cases, could be based on the number of partner, the early onset of their sexuality and the variability of the practices they perform [38]. On the other hand, society, from home schooling, may teach women more conservative and rigid codes of behavior, which would generate in them little openness in terms of sexuality and lack of recognition of their erotic fantasies and desires sexual, which probably increases their guilt in these matters". However, when asked about the likelihood of asking your partner to use a condom in their sexual relationships, both men and women agreed that it would be quite likely that they would do so, more frequently in women.
Undoubtedly, university students are in a very important stage for their development that requires sexual education that allows knowledge of your body and its most informed and responsible sexuality. Higher Education Institutions face a great challenge, not only to train young people as professionals, but to promote healthy behaviors that permanently impact their quality of life.

Conclusions
1) Protective sexual practices were: abstinence, oral sex with condoms and having oral sex with known partners.
2) The reasons for not having sexual practice with penetration were: wanting to have SP with those in love and preventing STIs.
3) Regarding the probability of having SP, it was found that men are less likely to explore their partner's sexual history, reject the proposal to have SP and caresses in sensitive areas of the body compared to women. And like them, it is quite likely that they will ask their partner to use a condom in their SP.

4)
The results allow us to conclude that the behaviors that protect against STIs and UP are the result of prevention, as a reliable and safe tool to maintain health and life.

Limitations
• The study is only valid for the population under investigation. It is not representative for any population. • The fact that participation in the study is voluntary can promote the exclusion of individuals with risky behaviors, who may refuse to participate.
• There may be many other reasons; this study included the most common previously identified in students in the area of health.

Conflicts of Interest
The authors declare no conflicts of interest regarding the publication of this pa-