Perdrizet S, Liard R, Cooreman J
Arch Fr Pediatr. 1979 Nov;36(9):940-8.
A study of respiratory symptoms in 6918 schoolchildren aged 6-10 years was carried out in 1975, in 7 French areas having different pollution levels. The proportion of children with respiratory symptoms (cough and/or wheezing), dyspnoea, colds and colds "going to the chest" was higher in Paris than in the other areas. The frequency was related to age, allergy and some socio-economic factors. After adjustment for these factors the difference in the respiratory symptoms between those in Paris and elsewhere was still statistically significant. According to 1974 average pollution data, air was more polluted in Paris than in the other areas, particularly for black smoke.
1975年，在法国7个污染程度不同的地区，对6918名6至10岁的学童进行了一项呼吸道症状研究。有呼吸道症状（咳嗽和/或喘息）、呼吸困难、感冒以及感冒“发展成胸部疾病”的儿童比例，巴黎高于其他地区。发病频率与年龄、过敏和一些社会经济因素有关。在对这些因素进行调整后，巴黎和其他地区儿童呼吸道症状的差异在统计学上仍然显著。根据1974年的平均污染数据，巴黎的空气污染比其他地区更严重，尤其是黑烟污染。
