TABLE 1.
Region | Population | G. Mean (IU ml–1) | Reference | n | Ages |
---|---|---|---|---|---|
S.A. | Multiple indigenous groups, Venezuela | 13,088 | Lynch et al., 1983 | 274 | 18.5 ± 13.6 |
S.A. | Waorani, Ecuador | 10,153a | Kaplan et al., 1980 | 227 | all ages |
S.A. | Dicuron (Waorani), Ecuador | 10,572a | Kron et al., 2000 | 31 | 15–75 |
S.A. | Waorani, Ecuador | 9,806 | Buckley et al., 1985 | 229 | all ages |
S.A. | Warao, Venezuela | 7,004 | Hagel et al., 2006 | 159 | 8.6 ± 2.5 |
S.A. | Dicuron (Waorani), Lago Agrio, Ecuador | 4,143a | Kron et al., 2000 | 8 | adults? |
Asia | Indonesia | 3,162 | Terhell et al., 2001 | 167 | 0 to 10 and adults |
Asia | Tibetan (living in Nepal) | 2,930 | Buckley et al., 1985 | 39 | all ages? |
Asia | Indonesia | 2,570 | Wahyuni et al., 2005 | 466 | 5 to 84 |
S.A. | ‘Slum” of Caracas, Venezuela | 2,423 | Hagel et al., 1993; 1995 | 85 | 8.5 ± 2.5 |
Africa | Liberia | 2,123 | Perlmann et al., 1994 | 57 | adults |
S.A. | Shuar, Ecuador | 1,196 | This study | 163 | 2 to 67 |
S.A. | Quichua, Ecuador | 1,189a | Kron et al., 2000 | 16 | adults? |
S.A. | Brazil | 1,047 | Grant et al., 2008 | 822 | 26.9 ± 18.7 |
S.A. | Pichincha, Ecuador | 1,004 | Cooper et al., 2008 | 1,632 | grades 2 to 7 |
Africa | Ethiopian Born (1–3 months in Israel) | 1,016a | Iancovici Kidon et al., 2005 | 11 | 13.7 ± 1.0 |
Africa | Ethiopian Born (One year in Israel) | 1,292a | Iancovici Kidon et al., 2005 | 11 | 14.7 ± 1.0 |
Africa | Nigeria | 973 | McSharry et al., 1999 | 92 | 5 to 15 |
Africa | Gambia (Rural school children) | 962 | Godfrey, 1975 | 131 | schoolchildren |
Asia | Thailand | 647 | Perlmann et al., 1994 | 23 | adults |
S.A. | School children, Venezuela | 450 | Hagel et al., 2006 | 70 | 7.6 ± 2.5 |
Africa | Tanzania | 397a | Perlmann et al., 1999 | 230 | 0 to 29 |
Africa | Gambia (Urban school children) | 368 | Godfrey, 1975 | 60 | schoolchildren |
Africa | Gambia (Rural) | 364 | Nyan et al., 2001 | 142? | >15 |
Africa | Gambia (Urban) | 332 | Nyan et al., 2001 | 142? | >15 |
Africa | Madagascar | 301 | Perlmann et al., 1994 | 54 | 2 to 35 |
Africa | Ethiopian Born (>7 years in Israel) | 135a | Iancovici Kidon et al., 2005 | 10 | 14.7 ± 1.0 |
N.A. | North Carolina, U.S.A. | 108 | Buckley et al., 1985 | 84 | 18–35 |
Europe | Croatia | 107b | Dodig et al., 2006 | 7,975 | 0 to 16 |
M.E. | Ethiopian Israeli Born | 54a | Iancovici Kidon et al., 2005 | 15 | 6.4 ± 2.3 |
Europe | Greek | 54a,b | Petridou et al., 1995 | 484 | 1 to 14 |
N.A. | U.S.A. (Multiple Ethnicities) | 52 | NHANES 2005–2006c | 8,336 | 1 to 85 |
N.A. | Canada (only nonallergic) | 12 | Holford-Strevens et al., 1984 | 1,814 | 20–65 |
Europe | Sweden (only nonatopic) | 8 | Perlmann et al., 1994 | 38 | not given |
Region abbreviations: S.A. = South America, N.A. = North America, M.E. = Middle East.
The published arithmetic mean was converted to geometric mean under the assumption of a lognormal distribution using: where x̄ is the arithmetic mean and σ is the standard deviation.
Two or more reported groups were combined to form a single population estimate by converting to log IgE, calculating sample size weighted average log IgE and then converting back to geometric mean.
NHANES data calculated directly from NHANES data files at www.cdc.gov/nchs/nhanes/nhanes2005-2006/nhanes05_06.htm.