Table 1 Characteristics of data describing spatial variation in water and sanitation access in five countries

Data source

Departmento Administrativo Nacional de Estadistica (DANE) [14]; Humanitarian Response [15]

The Egyptian Cabinet Information and Decision Support Center (IDSC) [16]

Kenya Open Data [17],[18]

Statistics South Africa (Stats SA) [19],[20]

World Resources Institute (WRI) [21]; Global Administrative Areas (GADM) [22]

Temporal Coverage

2005

2006

2009

2001

2002^b; 2008^a

Most disaggregated geography (total number of areal units)

urban and rural areas within municipalities (2,195)

urban (Kism) and rural areas (Markaz) within governorates (335 ^a; 341 ^b)

sub-location (7,129)

sub-place (20,784)

sub-county (852)

Median population per smallest areal unit (range)

5,914 (64 – 6,824,510)

177,798 (21 – 1,169,192)^a; 175,665 (21 – 1,169,192)^b

3,734 (7 – 140,321)

795 (1 – 131,659)

28,059 (3,094 – 172,564)^a; 23,458 (2,430 – 136,322)^b

Median population density, people/km ² (range)

190.34 (0.10 – 168,723.80)

1,859.80 (0.03 – 80,011.59)^a; 1,841.88 (0.03 – 80,011.59)^b

--

431.31 (0.01 – 106,108.80)

190.00 (4.14 – 3,249.47)^a; 157.70 (3.51 – 2,567.00)^b

Percentage of lowest level areal units with missing data

0.01%

0.07%^a; 0.05%^b

0.00%

0.02%

0.12% (rural only)

Geographic information

Boundaries data; urban/rural codes

Boundaries data; urban/rural codes

No spatial information available

Boundaries data; urban/rural codes

Boundaries data; rural areas only