Sexual behaviour is the manner in which humans experience and express their sexuality. It also means any activity between two persons (solitary) or in a group that induces sexual arousal. The sexual behaviour of an individual is to a large extent a function of the inherited sexual response pattern or the extent of the restraint exerted on the individual by society.

Risky sexual behaviors are sexual behaviors that increase the chance of contacting or transmitting disease or unwanted pregnancy. They include: multiple sexual partners, oral, anal and vaginal sex without protection; using unreliable methods of contraception and inconsistent use of it. It also includes the frequency of changing sexual partners.

The centre for disease control (CDC) defines risky sexual behaviour as that which increases one’s risk of contacting sexually transmitted infections and experiencing unwanted pregnancies. They include having sex at an early age, multiple sexual partners, having sex under the influence of alcohol or drugs and unprotected sexual behaviors [1] .

The feared consequences of risky sexual behaviors are: sexually transmitted diseases, unwanted pregnancy and sometimes psychological consequences of sexual violence [2] . This study was undertaken amongst students in a tertiary institution to ascertain the risky sexual behaviors amongst them so as to suggest solutions on how to remedy the problem.

This is a self-administered questionnaire-based study conducted among 276 students randomly selected from the various faculties of the two campuses of Nnamdi Azikiwe University―at Awka and Nnewi, in Anambra State of South Eastern Nigeria. Ethical clearance for this study was obtained from the ethics committee of Nnamdi Azikiwe University and Teaching Hospital. A detailed explanation of the questionnaire schedule was made to the students together with the need for them to respond truthfully and honestly, in-spite of the sensitive nature of the questions contained in the questionnaire. Only the students that gave consent following the detailed explanation of the study were interviewed. The questionnaire schedule elicited information from the respondents in respect of their social demographic characteristics―age, sex, marital status and religion; sexual activity pattern― whether or not the respondent were sexually active and number of sexual partner over the past years; and reasons for engaging in sexual intercourse―whether for procreation, pleasure, money, to please partner, to obtain favour, to express love or all of the above

A total of 300 questionnaires were administered but only 276 were found usable after editing. The completed questionnaires were keyed into the system and analyzed using SPSS version 17.0. Statistical relationships between variables were explored using chi-square test and a p value of <0.05 at a 95% confidence interval was considered to be significant for all statistical comparisons.

The Distribution By the socio-demographic characteristics of the Respondents is shown in Table 1.

The mean age of the respondents was 23.1 years. Majority of the respondents came within the age range of 20 - 24 years with a summation of frequency of (Σfx) 3608 - 164 (59.4%) while the least age group was 15 - 19 years―32 (11.6%) and had a summation of frequency of (Σfx) 544. There were 168 (60.9%) males and 108 (39.1%) females. The majority of the respondents, 242 (87.7%) were single while only 34 (12.3%) were married. Most of the respondents 266 (96.4%) were Christians

The distribution by the pattern of sexuality of the respondents as shown in Table 2 indicate that as high as 190 (68.8%) were sexually active, while 82 (29.7%) were not. Sexual debut occurred amongst respondents within all the age ranges 1 - 5 to 20 - 25, but occurred most commonly within the age range of 16 - 20 years― 118 (62.1%). Sexual debut even occurred within the age range of 1 - 5 years―4 (2.1%). Thirty five (36.8%) of the respondents had had only one sexual partner within the past one year, While 34 (35.8%) had had up to 2 - 5 partners. As high as 18 (19.00%) respondents had had 6 - 10 sex partners within the past year, while 8 (8.4%) had had more than 10 or more.

Figure 1 shows the reason given by the respondents for sexual intercourse. The commonest reason given was for pleasure 140 (73.7%) other reason given include please a partner 18 (9.5%); for money 14 (7.4%) for procreation 8 (4.2%); to obtain favour 6 (3.2%) and to express love 2 (1.1%). Two of the respondents give all the

Key: MCI = mid class interval, N = number of frequency.

reasons for engaging in sexual intercourse.

The ages of the majority 164 (59.4%) of the respondents in this study fall within the range of 20 - 24 years, which corresponds with the World Health Organization’s (WHO’s) definition of youth [3] . In addition up to 32 (11.6%) of the respondents were age between 15 and 19 years, designated as adolescence [3] . The adolescence age represents a transition from childhood to adulthood and it is characterized by physical, sexual and emotional changes and an inherent tendency to explore―particularly sexuality with attendant high-risk sexual behaviors that may result in unwanted pregnancy with unsafe abortion and its complications; and sexually transmitted infections including HIV/AID. The combination of the youths and adolescents in the study totaling 196 (71.0%) represents a highly vulnerable segment and probably also constitute an integral part of the 242 number of unmarried respondents.

In this study, 190 (68.8%) respondents are sexually active, and most of these are constituted of adolescents and youths who form the majority of unmarried respondents. This finding is in agreement with previous reports that indicates the high sexual activity of adolescents and youths [4] .

The 68.8% sexually active respondents shown in this study is higher than that of the report of the 2013 Nigeria National Demographic and Health Survey (NDHS) which shows that 48.9% of adolescents are sexually active [5] . This may probably be due to the fact that the NDHS data is purely on adolescents while the respondents in this study were blend of adolescents and the youth. It is worrisome to note that only 35 (36.8%) of the sexually active respondents in our study had only one sexual partner in the past one year. The remaining 63.2% majority were having sex with multiple partners, with as high as 27.4% having sexual intercourse with as many as six or more partners. This finding is comparable to the report from a study conducted at Ilorin Nigeria which showed that 62.3% of tertiary students studied, had more than one sex partner in the preceding two months [6] . The reason for multiple sexual partners may not be unconnected to the fact that adolescents and young person often engage in sexual experimentation and are often times ignorant of the associated negative consequences. Evidence to this can be adduced in this study from the fact that as high as 140 (73.7%) of the respondents indulge in sexual activity for “pleasure”, a situation which is even more worrisome. The 63.2% of the sexually active respondents with multiple sexual partners observed in this study is higher than 51.7% reported by Hazzaz et al. [7] in Kano and 56.2% reported by Sabitu et al. [8] in Minna both in Northern Nigeria, thereby suggesting regional differences in multiple sexual partnering in Nigeria. It further more compares to the findings of Owoaje et al. [9] who reported multiple sexual partnering in 58.2% of street youths in south western Nigeria.

The inference from this therefore is that the sexuality pattern amongst students in the campuses of higher educational institutions may not be different from what is obtained on the streets, and may even be worse.

Sexual intercourse with multiple partners, particularly when unprotected is indeed a high risk behavior that places the individual at increased danger of sexually transmitted infections and unwanted pregnancy!

This is even more glaring for adolescents and youth in higher educational institutions characterized to have a high rate of sexual activity with relatively low contraceptive and condom usage [10] - [12] .

Commonly encountered sexual transmitted infection may be asymptomatic, although often times are symptomatic. Symptomatic STIs can be ulcerative and non-ulcerative. Common ulcerative Sexually Transmitted Infection particularly in the tropic include-Herpes genitalis, Syphilis, Chancroid, Granuloma Inguinale, and Lymphogranuloma Venerum [13] [14] . Non-ulcerative sexually transmitted infection usually present with urethritis or vaginal discharge, as in infections from organism such as Neisseria gonorrhoea, Chlamydia trachomatis, Mycoplasma genitalium, Trichomonas vaginalis and Ureaplasmaurealiticum [15] .

Another risky sexual behavior found in this study population is early sexual debut. The mean age of sexual debut in this study is 16.7 years (Table 2). This compares to the 17 years for the never married and 18 years for the married reported by Isiugo et al. in Cross River and Oyo states of southern Nigeria [16] . However, unlike the Cross River and Oyo States study which is a household survey, this is an institutional survey. This further suggests that sexual behaviour of adolescents is similar whether they are at home, in the school or in the street corners. It also compares to the 16.4 and 19.0 years for female and male students respectively reported from Minna north central Nigeria [17] . Unlike the Minna study however, ours did not seek for male and female ages at sexual debut differently.

It is interesting to note that sexual debut occurred at all the age-ranges in this study, starting from 4 (2.1%) at age range 1 - 5, and with the majority experiencing sexual debut at the age-range of 16 - 20 years, 118 (62.1%). The implication of this is that age consideration should not constitute a barrier to extending sexuality education to people.

This study reviews a high rate of sexual activity, 68.8%, among the students surveyed in the tertiary educational institution. Their age at sexual debut spanned through the age-range from 1 - 5 years to 20 - 25 years, and majority of them 62.3% had multiple sexual partners with a considerable number of 27.4% having as many as six or more sexual partners over the past one year. These constitute a high risk sexual behaviour pattern that would predispose the students to unwanted pregnancy and sexually transmitted infection.

The need to integrate sexuality education especially safe sex practices into a comprehensive reproductive health advocacy program targeted at higher educational institutions in Nigeria, even also including programs for out of school youths has become critical, if the present unsalutary sex behavior pattern amongst adolescents and youth in Nigeria is to be reversed. Such reproductive health program should be planned to span through the educational chain with the allocation of the relevant reproductive health information to the various levels of the educational chain, starting with the basic information on anatomy and physiology of the reproductive system at the primary level, to issues of safe sexuality including family planning and sexually transmitted infection at the secondary and tertiary educational level. Advocacy tools should include policies that harness the curriculum at both primary and secondary education, reproductive health enlightenment lectures at schools and also in the prints and electronic media. The social media has become an increasingly popular source of information for youths and adolescents and should therefore be explored to ensure that consistent and correct information on sexuality and reproductive health generally is posted to guide young persons towards making correct and informed reproductive health decisions.

The authors are grateful to South East Nigeria (SE-PAC-Net) for sponsoring the conduct of this research.

Adinma Joseph Ifeanyi Brian,Osita Umeononihu,Adinma Dolly Echendu,Nkemakolam Eke, (2016) Sexual Behaviour among Students in a Tertiary Educational Institution in Southeast Nigeria. Advances in Reproductive Sciences,04,87-92. doi: 10.4236/arsci.2016.43010