A comparison of the Islamic slave trade to the American slave trade reveals some interesting contrasts. While two out of every three slaves shipped across the Atlantic were men, the proportions were reversed in the Islamic slave trade. Two women for every man were enslaved by the Muslims.
While the mortality rate for slaves being transported across the Atlantic was as high as 10%, the percentage of slaves dying in transit in the Trans Sahara and East African slave trade was between 80 and 90%!
While almost all the slaves shipped across the Atlantic were for agricultural work, most of the slaves destined for the Muslim Middle East were for sexual exploitation as concubines, in harems, and for military service.
While many children were born to slaves in the Americas, and millions of their descendants are citizens in Brazil and the USA to this day, very few descendants of the slaves that ended up in the Middle East survive.
While most slaves who went to the Americas could marry and have families, most of the male slaves destined for the Middle East were castrated, and most of the children born to the women were killed at birth.
It is estimated that possibly as many as 11 million Africans were transported across the Atlantic (95% of which went to South and Central America, mainly to Portuguese, Spanish and French possessions. Only 5% of the slaves went to the United States).
However, at least 28 million Africans were enslaved in the Muslim Middle East. As at least 80% of those captured by Muslim slave traders were calculated to have died before reaching the slave markets, it is believed that the death toll from the 14 centuries of Muslim slave raids into Africa could have been over 112 million. When added to the number of those sold in the slave markets, the total number of African victims of the Trans Saharan and East African slave trade could be significantly higher than 140 million people.
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Historian Robert Davis in his book "Christian Slaves, Muslim Masters - White Slavery In the Mediterranean, the Barbary Coast and Italy", estimates that North African Muslim pirates abducted and enslaved more than 1 million Europeans between 1530 and 1780. These white Christians were seized in a series of raids which depopulated coastal towns from Sicily to Cornwall. Thousands of white Christians in coastal areas were seized every year to work as galley slaves, labourers and concubines for Muslim slave masters in what is today Morocco, Tunisia, Algeria and Libya. Villages and towns on the coast of Italy, Spain, Portugal and France were the hardest hit, but the Muslim slave raiders also seized people as far afield as Britain, Ireland and Iceland. They even captured 130 American seamen from ships they boarded in the Atlantic between 1785 and 1793.
According to one report, 7000 English people were abducted between 1622 to 1644, many of them ship crews and passengers. But the Corsairs also landed on unguarded beaches, often at night, to snatch the unwary. Almost all the inhabitants of the village of Baltimore, in Ireland, were captured in 1631, and there were other raids in Devon and Cornwall. Many of these white, Christian slaves were put to work in quarries, building sites and galleys and endured malnutrition, disease and mistreatment at the hands of their Muslim slave masters. Many of them were used for public works such as building harbours.
Female captives were sexually abused in palace harems and others were held as hostages and bargained for ransom. "The most unlucky ended up stuck and forgotten out in the desert, in some sleepy town such as Suez, or in Turkish Sultanate galleys, where some slaves rowed for decades without ever setting foot on shore." Professor Davis estimates that up to 1,25 million Europeans were enslaved by Muslim slave raiders between 1500 to 1800. 
[The Mediterranean slavery of the 16th and 17th centuries] was not race slavery, but nor was it indiscriminate. It was religious slavery. The human beings kidnapped and sold by the Barbary pirates were fair game because they were Christian. A Christian slave on the Barbary Coast could attain his freedom by converting to Islam, and many did so.
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One of the most impressive parts of Prof. Davis’s book is his computation of the numbers of Europeans enslaved by these Muslim raiders. Combing through the historical sources, he concludes that there were about 35,000 enslaved Christians on the Barbary Coast at any one time. He then sets about estimating attrition rates. Slave numbers declined through four causes: death, escape, redemption (i.e. by ransom), and conversion to Islam. Davis gets annual rates from these causes of 17 percent, 1 percent, 2-3 percent, and 4 percent, respectively. This implies a total number of slaves, from the early 1500s to the late 1700s, of one to one and a quarter million. This is an astonishing number, implying that well into the 17th century, the Mediterranean slave trade was out-producing the Atlantic one. Numbers fell off thereafter, while the transatlantic trade increased; but in its time, the enslavement of European Christians by Muslim North Africans was the main kind of enslavement going on in the world.
The result, then, is that between 1530 and 1780 there were almost certainly a million and quite possibly as many as a million and a quarter white, European Christians enslaved by the Muslims of the Barbary Coast.
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In fact, even a tentative slave count in Barbary inevitably begs a host of new questions. To begin with, the estimates arrived at here make it clear that for most of the first two centuries of the modern era, nearly as many Europeans were taken forcibly to Barbary and worked or sold as slaves as were West Africans hauled off to labor on plantations in the Americas. In the sixteenth century especially, during which time the Atlantic slave runners still averaged only around 3,200 Africans annually, the corsairs of Algiers – and later Tunis and Tripoli – were regularly snatching that many or more white captives on a single raiding voyage to Sicily, the Balearics, or Valencia.
Thousands of Afghan girls and boys are trafficked into neighboring countries and sold into slavery each year. Though it is taboo, prostitution is alive and thriving - at the cost of those forced to work in it.
Egypt has come in second place in the trading of women, according to Azza Soliman, the national coordinator of fighting female human trafficking and trade.
Soliman said that Egypt has turned from a transit country to a “residence country” for the women
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Experts say the number of women trafficked into neighboring countries is on the rise as wealthy Arabs take advantage of difficult economic situations, marry young girls with the intent to use them in the sex trade.
Makram Ouda, executive director of the Jordanian Women Union said that they have found 70 Egyptian women who were trafficked into Jordan and kept there as part of the sex trade network after their husbands “bought” them from their parents.
And while the marriage contracts are legitimate, these new brides find themselves working either as beggars or as sex workers.
data from End Child Prostitution, Child Pornography and the Trafficking of Children (Ecpat) show up to 70,000 children in Indonesia may have fallen victim to sexual exploitation.
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The group says the majority of victims are from West, Central and East Java, West Kalimantan and North Sumatra. In many cases, the children are promised work as domestic workers but end up in prostitution dens.
More than 3,900 children here have fallen victim to human trafficking in the first half of the year, according to the International Organization for Migration. The country tops the UN body’s list of child trafficking cases."