TABLE 1.
Changes in eczema current prevalence, severity and lifetime prevalence in children (a) and adolescents (b) for centres participating in GAN Phase I
| (a) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age 13–14 | Flexural rash in last 12 months | Severe flexural rash (disturbing sleep) in last 12 months | Ever had eczema | |||||||||||||
| Region | Country | Centre | PI | GAN response rate | Country income level | GAN I mean data collection date | GAN I sample size | GAN I prevalence (%) | Absolute change per decade ISAAC to GAN a (%) | Number of SEs change | GAN I prevalence (%) | Absolute change per decade ISAAC III to GAN I a (%) | Number of SEs change | GAN I prevalence (%) | Absolute change per decade ISAAC III to GAN I a (%) | Number of SEs change (%) |
| Africa and Eastern Mediterranean | Nigeria | Ibadan | A Falade | 85.0 | L | May‐18 | 2897 | 4.7 | −1.8 | −2.0 | 1.1 | −0.1 | −0.5 | 1.7 | 23.7 | 4.0 |
| South Africa | Cape Town | HJ Zar | 84.4 | LM | Aug‐17 | 3979 | 14.3 | 0.7 | 0.7 | 4.7 | 0.6 | 1.1 | 1.2 | 32.8 | 2.7 | |
| Sudan | Khartoum | M Nour | 99.9 | L | Mar‐17 | 1785 | 10.5 | 4.1 | 3.3 | 2.8 | 2.0 | 3.5 | 2.9 | 26.6 | 18.9 | |
| Syrian Arab Republic | Lattakia | G Dib | 99.6 | LM | Apr‐19 | 1215 | 10.2 | 4.0 | 2.4 | 2.6 | 1.1 | 2.0 | 1.0 | 25.8 | 3.5 | |
| America | Chile | South Santiago | J Mallol | 81.9 | UM | Mar‐15 | 2750 | 18.5 | −2.7 | −1.9 | 1.5 | −1.1 | −3.9 | 2.1 | 8.3 | −4.2 |
| Costa Rica | Costa Rica | ME Soto‐Quirós | 67.5 | UM | Feb‐18 | 1338 | 8.7 | 1.5 | 2.9 | 1.8 | 0.3 | 1.3 | 1.1 | 20.7 | −0.1 | |
| Ecuador | Quito | A Cabrera Aguilar | 100 | LM | Apr‐19 | 3000 | 10.6 | −5.8 | −5.0 | 1.5 | −0.4 | −1.4 | 0.9 | 14.5 | 2.1 | |
| México | Ciudad Victoria | R García‐Almaráz | 82.3 | UM | Dec‐15 | 2468 | 6.5 | 1.1 | 0.5 | 1.1 | 0.0 | 0.0 | 0.4 | 16.9 | −3.4 | |
| México | Mexicali | JV Mérida‐Palacio | 83.7 | UM | Apr‐16 | 2479 | 4.0 | 0.8 | 2.0 | 0.6 | 0.3 | 3.1 | 0.3 | 14.1 | 7.7 | |
| México | México City (North Area) | BE Del Río Navarro | 93.8 | UM | Sep‐15 | 3375 | 3.9 | −3.6 | −5.3 | 0.7 | −0.2 | −0.8 | 0.5 | 16.9 | 4.7 | |
| México | Monterrey | SN González‐Díaz | 88.0 | UM | Dec‐17 | 2641 | 9.4 | 3.2 | 4.0 | 1.3 | 0.3 | 1.8 | 0.8 | 14.1 | −3.1 | |
| México | Toluca Urban Area | EM Navarrete‐Rodriguez | 98.1 | UM | Oct‐15 | 2650 | 4.5 | 1.1 | 1.9 | 0.5 | 0.0 | −0.4 | 1.1 | 10.0 | −4.6 | |
| Nicaragua | Managua | JF Sánchez | 90.5 | L | Nov‐18 | 3131 | 5.7 | −8.9 | −10.0 | 1.6 | −0.9 | −3.1 | 0.7 | 27.5 | 7.7 | |
| Europe | Greece | Athens a | K Douros | 75.5 | H | Feb‐20 | 1934 | 5.7 | 1.0 | 4.2 | 0.3 | 0.0 | −0.1 | 0.4 | 4.5 | −1.7 |
| Spain | A Coruña | A López‐Silvarrey Varela | 92.1 | H | Jan‐19 | 3462 | 10.9 | 3.9 | 7.9 | 1.2 | 0.6 | 3.7 | 0.9 | 10.8 | 3.1 | |
| Spain | Bilbao | C González Díaz | 91.1 | H | Sep‐18 | 3379 | 12.1 | 4.8 | 10.2 | 1.4 | 0.6 | 4.3 | 0.8 | 11.8 | 1.8 | |
| Spain | Cartagena | L García‐Marcos | 73.8 | H | Jan‐16 | 3437 | 6.3 | 1.7 | 3.6 | 0.6 | −0.1 | −0.4 | 0.8 | 8.8 | −4.9 | |
| South‐East Asia and Western Pacific | India | Bikaner | M Sabir | 90.1 | L | Nov‐17 | 2702 | 4.2 | −2.7 | −3.6 | 0.0 | −0.6 | −6.7 | 1.9 | 0.0 | −7.5 |
| India | Chandigarh | M Singh | 100 | L | Oct‐17 | 3000 | 3.4 | −0.1 | −0.3 | 0.4 | 0.2 | 2.2 | 0.7 | 10.8 | 5.1 | |
| India | Jaipur | V Singh | 98.7 | L | Nov‐17 | 3060 | 4.9 | 0.3 | 0.6 | 0.5 | −0.1 | −0.4 | 0.9 | 10.6 | −2.0 | |
| India | Kottayam | TU Sukumaran | 85.3 | L | Oct‐17 | 2091 | 3.2 | −4.0 | −3.6 | 0.4 | 0.3 | 3.3 | 1.0 | 13.6 | 8.9 | |
| India | Lucknow | S Awasthi | 94.0 | L | Oct‐17 | 2969 | 1.9 | −0.9 | −1.4 | 0.3 | −0.1 | −0.7 | 1.5 | 14.0 | 1.8 | |
| India | New Delhi (7) | SK Kabra | 100 | L | Nov‐17 | 3024 | 5.0 | 0.9 | 1.6 | 1.4 | 0.6 | 2.6 | 0.6 | 27.6 | 9.1 | |
| India | Pune | S Salvi | 99.6 | L | Oct‐17 | 3030 | 2.0 | −0.1 | −0.2 | 0.4 | 0.1 | 1.3 | 0.8 | 20.0 | 6.6 | |
| New Zealand | Auckland | MI Asher | 85.5 | H | Oct‐18 | 1885 | 6.2 | −1.6 | −2.1 | 1.1 | −0.5 | −1.9 | 0.8 | 18.1 | −2.1 | |
| Taiwan | Taipei | J‐L Huang | 93.0 | H | Oct‐17 | 3474 | 9.6 | 3.5 | 10.3 | 1.2 | 0.4 | 3.6 | 0.9 | 12.0 | 0.1 | |
| Thailand | Bangkok | S Chinratanapisit | 97.9 | LM | Sep‐17 | 3206 | 9.5 | −0.5 | −0.7 | 0.6 | −0.4 | −1.7 | 1.2 | 6.2 | −3.7 | |
| Total | Sep‐17 | 74,361 | ||||||||||||||
| (b) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age 6–7 | Flexural rash in last 12 months | Severe flexural rash (disturbing sleep) in last 12 months | Ever had eczema | |||||||||||||
| Region | Country | Centre | PI | GAN response rate | Country income level | GAN mean data collection date | GAN sample size | GAN prevalence (%) | Absolute change per decade ISAAC to GAN b (%) | Number of SEs change | GAN I prevalence (%) | Absolute change per decade ISAAC III to GAN b (%) | Number of SEs change | GAN I prevalence (%) | Absolute change per decade ISAAC III to GAN b (%) | Number of SEs change |
| Africa and Eastern Mediterranean | Syrian Arab Republic | Lattakia | Y Mohammad | 93.0 | LM | May‐19 | 1116 | 3.0 | 0.4 | 0.9 | 1.2 | 0.6 | 2.0 | 8.5 | 4.0 | 4.6 |
| America | Costa Rica | Costa Rica | ME Soto‐Quirós | 64.5 | UM | Jan‐18 | 1936 | 7.5 | −0.9 | −1.3 | 1.5 | 0.0 | −0.1 | 15.9 | 4.5 | 6.2 |
| México | Ciudad Victoria | R García‐Almaráz | 81.5 | UM | Feb‐16 | 2444 | 6.1 | 2.9 | 6.6 | 1.1 | 0.7 | 3.4 | 3.7 | 1.3 | 2.8 | |
| México | Mexicali | JV Mérida‐Palacio | 77.0 | UM | Mar‐16 | 2001 | 5.0 | −0.2 | −0.5 | 0.3 | −0.4 | −1.7 | 4.4 | 0.6 | 0.9 | |
| México | México City (North Area) | BE Del Río Navarro | 86.7 | UM | Jun‐16 | 2515 | 7.1 | −1.2 | −1.9 | 0.6 | −0.1 | −0.5 | 11.4 | 5.4 | 8.5 | |
| México | Toluca Urban Area | EM Navarrete‐Rodriguez | 95.7 | UM | Apr‐16 | 2712 | 6.0 | 0.4 | 0.6 | 0.4 | 0.1 | 0.4 | 7.7 | 3.2 | 4.6 | |
| Nicaragua | Managua | JF Sánchez | 87.9 | L | Nov‐18 | 3162 | 4.2 | −9.6 | −9.5 | 0.8 | −1.3 | −4.7 | 8.7 | −5.3 | −5.9 | |
| Europe | Spain | A Coruña | A López‐Silvarrey Varela | 71.0 | H | Jan‐19 | 3407 | 10.2 | 1.9 | 4.3 | 0.6 | 0.0 | 0.1 | 47.3 | 7.7 | 9.3 |
| Spain | Bilbao | C González Díaz | 55.2 | H | Aug‐18 | 2707 | 12.4 | 3.4 | 7.9 | 0.9 | 0.3 | 1.9 | 46.9 | 9.0 | 10.6 | |
| Spain | Cartagena | L García‐Marcos | 65.9 | H | Jan‐16 | 3509 | 8.3 | 2.7 | 6.0 | 1.2 | 0.4 | 2.6 | 37.4 | 6.8 | 4.4 | |
| South‐East Asia and Western Pacific | India | Chandigarh b | M Singh | 100 | L | Oct‐17 | 2473 | 3.8 | 0.2 | 0.5 | 0.5 | 0.0 | −0.3 | 4.2 | 0.8 | 2.2 |
| India | Jaipur | V Singh | 75.8 | L | Nov‐17 | 2296 | 4.2 | −1.2 | −1.1 | 0.3 | −0.5 | −2.6 | 7.4 | −8.7 | −6.8 | |
| India | Kottayam | TU Sukumaran | 68.4 | L | Dec‐17 | 2099 | 2.3 | 0.0 | −0.1 | 0.1 | 0.1 | 1.7 | 2.0 | −5.3 | −7.6 | |
| India | Lucknow | S Awasthi | 91.3 | L | Oct‐17 | 2969 | 1.3 | −0.8 | −2.6 | 0.3 | −0.1 | −0.4 | 8.3 | 4.1 | 2.7 | |
| India | New Delhi (7) | SK Kabra | 80.9 | L | Jan‐18 | 2516 | 4.6 | 0.2 | 0.5 | 0.6 | 0.1 | 0.8 | 5.4 | 0.1 | 0.3 | |
| India | Pune | S Salvi | 79.8 | L | Oct‐17 | 2404 | 1.7 | −0.2 | −0.6 | 0.3 | 0.1 | 0.8 | 2.2 | −0.8 | −2.5 | |
| New Zealand | Auckland | MI Asher | 63.7 | H | Jul‐18 | 1538 | 15.0 | 0.4 | 0.6 | 1.8 | −0.4 | −1.4 | 31.4 | 3.1 | 3.0 | |
| Taiwan | Taipei | J‐L Huang | 76.3 | H | Oct‐17 | 3036 | 15.7 | 5.7 | 11.6 | 2.1 | 0.6 | 2.9 | 22.9 | −2.2 | −3.4 | |
| Thailand | Bangkok | S Chinratanapisit | 86.3 | LM | Aug‐17 | 3067 | 11.8 | −3.2 | −3.9 | 1.0 | −0.4 | −3.0 | 28.6 | 2.4 | 1.5 | |
| Total | Aug‐17 | 47,907 | ||||||||||||||
a
ISAAC Phase III except Athens uses ISAAC Phase I.
b
ISAAC Phase III except Chandigarh uses ISAAC Phase I.