The interconnection between men's sexual behaviour as a contributor to burden of reproductive and sexual health diseases in sub-Saharan Africa are often presented with complex and sophisticated statistical analyses with little or no comprehension among the affected population that are mostly with little or no statistical literacy and education. The study adopted simplicity-parsimony idea as amalgam of simplicity and parsimony theories in analysing the trends and patterns of men's sexual behaviour in Ethiopia, Nigeria and Zambia, the three countries selected from Eastern, Western and Southern parts of sub-Saharan Africa. Demographic Health Survey male-recode datasets (2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014) were used. Simple descriptive statistical techniques at univariate and bivariate levels were conducted. The results highlighted that men's sexual behaviour are not the same in these regions. The men median sexual debut is 18 (Nigeria and Ethiopia) but 16 in Zambia. The median age at first cohabitation differs: 22 in Zambia and Ethiopia but higher in Nigeria.

Sexual behavior during adolescence fundamentally steers the future life of both girls and boys, and it should be guided with appropriate education, especially as it also represents a key factor to be considered in attainment of sustainable developmental goals. The study assessed the effect of exposure to sex education on adolescents’ sexual behavior. The primary and cross-sectional survey data used for this study were analyzed using basic descriptive statistics and binary logistic regression analytical technique. The results, among others, highlighted that the most common sources of first sex education among the respondents are school (54.6%), family (21.6%), social media (9.5%), and others like television (7.6%) and books or magazines (4.9%). Frequency of discussion on sexual matters is positively associated with the use of protection such as condom (β = 0.261; p ≤ 0.01 ). The study gave support to the increasing pursuit of sexuality education. However, since adolescents’ needs could vary by demographics, streamlining sex education need by age and sex characteristics could enhance its effectiveness.

Risky sexual behaviours among men are well-evident in sub-Saharan Africa and there is a wide perspective that men awareness of reproductive diseases is low, despite rising prevalence of reproductive diseases. While there are literatures on risky sexual behaviours and prevalence of reproductive health diseases of men alone, little is known about whether awareness and experience of male reproductive challenges affect risky sexual behaviours of men in Lagos and Ogun States in Nigeria. This study therefore seeks to examine the awareness and experience of male reproductive challenges and how it affects risky sexual behaviours of men in Nigeria. Primary data was used for this study. Two levels of analysis namely univariate and multivariate was used to analyse the data. The univariate statistics involved descriptive statistics such as frequencies and means. The multivariate analysis involved the use of logistic regression technique to estimate whether awareness and experience of male reproductive challenges affect risky sexual behaviours of men in Nigeria. The result confirms that awareness and experience of reproductive health challenges affect risky sexual behaviour in men. This study helps policy makers, NGOs and government in emanating policies and legislation aimed at militating against risky sexual behaviours. Furthermore, NGOs and government could set up health centres which are for men's reproductive and sexual health alone, this would encourage men to go for sexual and reproductive health screening.