Respiratory health, children's lung function, and air quality in four Chinese cities: two snapshots in 1993-1996 and 2017-2018.

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

Who cites it

3 citing papers in PubMed.

1. Small Airway Disease in Pre-COPD and Early COPD: Insights Into the Pulmonary "Silent Zone".International journal of chronic obstructive pulmonary disease · 2026
   Review
2. Household mold exposure in association with childhood asthma and allergic rhinitis in a northwestern city and a southern city of China.Journal of thoracic disease · 2022
   Article
3. Impact of Air Pollution on Residents' Medical Expenses: A Study Based on the Survey Data of 122 Cities in China.Frontiers in public health · 2021
   Article

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

Authors and funding

3 authors.

Funding

Abstract

PubMed holds no abstract for this paper.