8-10% of children of school-age (in Sweden this is 7-16 years old) have asthma according to Barnallergisektionen.http://www.barnallergisektionen.se/Boken/BOK_AAB.pdf
15.490,503 cars registered in 2015Source: https://www.google.com/amp/s/www.ceicdata.com/en/indicator/thailand/mot…
Children (0-17 years old) with asthma (J45-J46) in 2012: 21267 children (13467 of them are male children and 7800 - female children). Also in this file: Dinamics of number of children with asthma 2001-2011 (for 100 000 inhabitants) (Liet. Vaikų (0-17m.) sergamumo ir ligotumo astma dinamika 2001-2011 m., (rodiklis 100 000 gyv.)) [there is a scheme, but i cant copy it here]. But the numbers of children with asthma have rised almost 3 times!
I found only one study that had studied childhood asthma rates in/around Dar es Salaam. The data was found in an article published in 2014. The study was done with high school students.
The astma rates in Germany are around 5% to 8,6%.source: https://www.quora.com/Why-is-asthma-so-rare-in-Berlin
In a cross‐sectional study conducted in rural Senegal (Niakhar), Hooper et al. found that nearly one in ten children had symptoms suggestive of asthma; however, few children had a diagnosis of asthma or use appropriate therapies. More specifically, from a total of 1513 children aged 6‐7 years, 130 (9%) reported wheezing within the last 12months, and 41 (3%) had a clinical asthma diagnosis. Methodology: The researchers used the International Study of Asthma and Allergies in Childhood (ISAAC) survey instrument to assess childhood respiratory health in rural Senegal.
of the population aged 14-17 years 45 per cent was enrolled in secondary schools (no year given. whole Kenya: 48% in 2009 - Worldbank https://data.worldbank.org/indicator/SE.SEC.NENR?locations=KE)Source: Meru county Government - http://meru.go.ke/content.php?com=69&com2=73&com3=
477 private cars per 1000 inhabitantsSource: Sveriges officiella statistik: Trafikanalys (Swedish official statistics: Transport Analysis)https://www.trafa.se/globalassets/statistik/vagtrafik/fordon/2019/fordo…?
From the summary: In 2012 the expected graduation rate from an upper secondary education reached 92% in Denmark (2014). Best info I could find in the time available.http://www.oecd.org/education/Denmark-EAG2014-Country-Note.pdf
