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. Author manuscript; available in PMC: 2011 Sep 15.
Published in final edited form as: Trop Med Int Health. 2005 Oct;10(10):1073–1086. doi: 10.1111/j.1365-3156.2005.01487.x

Table 3.

Population retrievals and correlation structure between publicly-available population products and administrative levels

Admin. Source Total Mean Min. Max. SE Ad. r2 n RMSE RMSE%
Country KPOP99 28 686 607
Province UNEP99 28 171 766 3 521 471 520 094 6 972 174 753 273 0.961 8 442 102 12.6
GPW299 29 657 189 3 707 149 448 080 7 619 123 801 808 0.987 8 467 278 12.6
GPW399 30 242 177 3 780 272 1 044 904 7 572 937 706 212 0.996 8 270 575 7.2
GPW3UR99 30 582 189 3 822 774 1 060 776 7 538 830 697 106 0.999 8 275 210 7.2
LS99 31 104 115 3 888 014 1 020 707 7 776 844 729 965 0.998 8 377 192 9.7
District UNEP99 28 171 766 408 286 26 382 1 297 872 30 651 0.808 69 133 334 32.7
GPW299 29 657 189 429 814 26 629 1 658 102 34 252 0.866 69 110 720 25.8
GPW399 30 242 177 438 292 48 727 2 319 504 39 463 0.993 69 41 516 9.5
GPW3UR99 30 582 189 443 220 48 359 2 345 870 39 751 0.998 69 39 326 8.9
LS99 31 104 115 450 784 65 436 2 347 364 39 580 0.947 69 83 633 18.6
Division UNEP99 28 171 766 55 786 0 352 354 2 209 0.665 505 30 528 54.7
GPW299 29 657 189 58 727 163 381 012 2 289 0.710 505 28 751 49.0
GPW399 30 242 177 59 885 23 465 206 2 388 0.949 505 12 519 20.9
GPW3UR99 30 582 189 60 559 3 468 323 2 414 0.992 505 6 805 11.2
LS99 31 104 115 61 592 105 440 513 2 664 0.701 505 33 041 53.6
Location UNEP99 28 171 766 11 565 0 182 679 268 0.248 2 436 12 685 109.7
GPW299 29 657 189 12 175 0 192 544 282 0.212 2 436 13 562 111.4
GPW399 30 242 177 12 415 23 129 770 249 0.698 2 436 6 995 56.3
GPW3UR99 30 582 189 12 554 3 121 153 252 0.948 2 436 2 936 23.4
LS99 31 104 115 12 769 3 232 858 345 0.381 2 436 13 507 105.8
Sub-loc. UNEP99 28 171 766 4 253 0 171 907 68 0.115 6 624 6 104 143.5
GPW299 29 657 189 4 477 0 155 898 76 0.090 6 624 6 725 150.2
GPW399 30 242 177 4 566 13 107 408 64 0.539 6 624 3 768 82.5
GPW3UR99 30 582 189 4 617 0 102 842 64 0.904 6 624 1 644 35.6
LS99 31 104 115 4 696 0 142 766 95 0.237 6 624 6 916 147.3

Admin., administrative level; Source, population data source; Total, total population; KPOP99, Kenya census enumeration 1999; UNEP99, United Nations Environment Programme in 1999; GPW299, Gridded Population of the World version 2 in 1999; GPW399, GPWv3.0 in 1999; GPW3UR99, GPWv3.0-UR in 1999; LS99, LandScan in 1999; Min., minimum; Max., maximum; SE, standard error; Ad. r2, adjusted r squared (all correlations highly significant P >> 0.0001); n, number of observations; RMSE, root mean square error. RMSE %, (RMSE/Mean) × 100.