From the Egypt Demographic and Health Survey 2005:

Total consanguineous marriages = 32.2%
Total first cousin marriages = 17.5%; inbreeding coefficient = 0.0109
Total second cousin marriages = 7.3%; inbreeding coefficient = 0.0011
Total “other blood relative” marriages = 7.4%

Total FBD marriages = 11%; inbreeding coefficient = 0.0069

Urban consanguineous marriages = 24%
Rural consanguineous marriages = 37.9%

Urban 1C = 13%; inbreeding coefficient = 0.0081
Urban 2C = 6%; inbreeding coefficient = 0.0009
Rural 1C = 20.6%; inbreeding coefficient = 0.0129
Rural 2C = 8.3%; inbreeding coefficient = 0.0013

Urban Governorates = 22.5%
Lower Egypt urban = 19.4%
Lower Egypt rural = 29%
Upper Egypt urban = 29.4%
Upper Egypt rural = 48.5%
Frontier Governorates = 41.4%

Urban Governorates = Cairo, Alexandria, Port Said, and Suez (no rural population)
Lower Egypt = 9 Lower Egypt governorates totally (Nile Delta)
Upper Egypt = 8 Upper Egypt governorates totally (Nile Valley)
Frontier Governorates = 5 governorates on eastern/western boundaries

Collection period: 2005
Study population: A nationally representative sample of ever-married women aged 15-49.
Sample size: 19,474
Location: Nation-wide.

From the abstract of An epidemiological study on consanguineous marriage among urban population in Alexandria:

“The study was carried out using a cross-sectional approach, involving interviews with 500 households randomly selected from three urban areas in Alexandria (Bab Sharki, El Gomrok and Karmouz). A questionnaire interview was conducted with married females in these households to determine prevalence of consanguineous marriages and to study knowledge of married females about causes and effects of consanguineous marriages. Prevalence of consanguineous marriages among 500 married females was 22.8% with the highest frequency among marriage between first cousins (15.8%). Average inbreeding coefficient up to the marriage between second cousins equals to 0.01172. The linear trend of consanguineous marriages throughout the last 50 years was statistically significant. Age at marriage was younger in consanguineous marriages than non consanguineous marriages. Longstanding familiarity and sharing same traditions and customs with male relatives were the main causes of consanguineous marriages. The majority of the studied females (42.2%) reported that consanguineous marriage is harmful while 29.6% reported that it has no effect on offsprings.”

Total consanguinity rate = 22.8%; inbreeding coefficient = 0.0117

1C consanguinity rate = 15.8%

Collection period: unknown; early 1990s(?)
Study population: Household survey
Sample size: 500
Location: Three urban areas in Alexandria: Bab Sharki, El Gomrok and Karmouz. Alexandria is an Urban Governorate.

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Compare:

1961-64 Total Alexandria consanguinity rate = 32.8% (>1C,1C,<1C)
Early 1990s(?) total Alexandria consanguinity rate = 22.8%
2000 Urban Governorates consanguinity rate = 29.1%
2008 Urban Governorates consanguinity rate = 23.2%

Early 1990s(?) Alexandria 1C consanguinity rate = 15.8%
2000 Total Urban Governorates 1C consanguinity rate = 16.5%
2008 Total Urban Governorates 1C consanguinity rate = 12.5%

From the abstract of Endogamy in Egyptian Nubia:

“In a sample of 282 marriages in New Nubia in Egypt, 39% were between first cousins and 21% between less closely related kin. The average number of liveborn offspring in first-cousin marriages was higher than in marriages between more distant relations and unrelated spouses, but the number of deaths among children of first-cousin couples was also higher.”

Total Nubian consanguinity rate = 60% (60.5%*)

1C consanguinity rate = 39%
<1C consanguinity rate = 21%

Collection period: 1965-67
Study population: Household survey
Sample size: 282
Location: New Nubia

*According to consang.net.

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Compare:

1965-67 New Nubian 1C consanguinity rate = 39%
1967-68 1C Fadetchi consanguinity rate = 45.5%
1967-68 1C Kenuzi consanguinity rate = 47.2%
1967-68 1C Arab consanguinity rate = 41.5%

From A genetic epidemiological study of malformations at birth in Egypt:

“Parental consanguinity was found in 31.79% of all cases….”

Total consanguinity rate = 31.79%

Collection period: 1991-93
Study population: Obstetric inpatients
Sample size: 80
Location: Boulak El-Dakrour Hospital in Giza; serves both urban and rural patients. Giza Governorate is one of the Delta/Lower Egypt Governorates.

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Compare:

1991-93 Giza = 31.79%
2000 Lower Egypt = 33.3%
2008 Lower Egypt = 23.4%
2009/10(?) Dakahlia = 19.8%

From Consanguinity and increased risk for schizophrenia in Egypt:

“3.4. Consanguinity by area of residence – Individuals living in villages or small towns (population less than 10,000)were classified as rural dwellers (65% of cases and 73% of controls), while the remainder were considered urban residents. The rates of self-reported consanguinity were similar among cases (36.11% among rural and 38.10% among urban groups) and controls from both groups (17.14% among rural and 20% among the urban control groups).”

Total consanguinity rate = 19.8%

Urban consanguinity rate = 20%
Rural consanguinity rate = 17.14%
(Reversed?)

1C consanguinity rate = 7.9%; inbreeding coefficient = 0.0049
<1C consanguinity rate = 11.9%

Collection period: unknown; 2009/10(?)
Study population: psychiatric outpatients plus controls.
Sample size: 201
Location: Mansoura, Dakahlia Governorate – one of the Lower Egypt/Delta Governorates

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Compare:

2000 Lower Egypt = 33.3%
2008 Lower Egypt = 23.4%
2009/10(?) Dakahlia = 19.8%

2000 Lower Egypt urban = 25.2%
2008 Lower Egypt urban = 18%
2009/10(?) Dakahlia urban = 20%

2000 Lower Egypt rural = 36.6%
2008 Lower Egypt rural = 25.3%
2009/10(?) Dakahlia rural = 17.14%

2000 Lower Egypt 1C consanguinity rate = 20.7%
2008 Lower Egypt 1C consanguinity rate = 13%
2009/10(?) Dakahlia 1C consanguinity rate = 7.9%

From Congenital malformations: a report of a study of series of consecutive births in 24 centres:

Total consanguinity rate = 32.8% (>1C,1C,<1C)

Collection period: 1961-64
Study population: Obstetric inpatients
Sample size: 9,475
Location: Alexandria

see also consang.net.

From the abstract of Genetic Studies of Egyptian Nubian Populations. I.:

“Egyptian Nubians, who lived in an isolated area for many centuries, have migrated because of the construction of the Aswan High Dam and the subsequent flooding of their lands. They have settled in the valley of Kom Ombo, north of Aswan. Three major groups of Nubians can be distinguished: Fadetchi, Kenuzi and Arabs. Each group has its characteristic language and traditions, and constitutes an almost closed community. This report, one of a series on the genetical characteristics of the Nubian population, deals with the types and frequency of consanguineous marriages. A large number of married people and well-grown schoolchildren were interviewed. Analysis of the data showed that the Nubians have remarkably high consanguinity rates. These were 72.9, 75.4, 80.4% for the Fadetchi, Kenuzi and Arab communities. Amongst the consanguineous marriages, those of first cousins accounted for 45.5, 47.2 and 41.5% of the totals for the Fadetchi, Kenuzi and Arabs, respectively….”

Total Nubian consanguinity rate = unknown (63.6%*)
Fadetchi consanguinity rate = 72.9% (61.4%*)
Kenuzi consanguinity rate = 75.4% (62.0%*)
Arab consangunity rate = 80.4% (69.8%*)

1C Fadetchi consanguinity rate = 45.5%
1C Kenuzi consanguinity rate = 47.2%
1C Arab consanguinity rate = 41.5%

Collection period: 1967-68
Study population: Household survey
Sample size: unknown (1,782 [611, 757, 414]*)
Location: The valley of Kom Ombo, north of Aswan.

*According to consang.net.