Skip to main content

Table 3 Conjunctivitis or keratitis patients number differences between districts which stand for PM10 top 20% levels and districts which stand for PM10 bottom 20% levels from June, 2006 to December, 2014

From: Spatial analysis between particulate matter and emergency room visits for conjunctivitis and keratitis

 

Visit Indexa

p value

Mean

SD

Conjunctivitis

PM10 top 20% districts

0.8

0.5

< 0.01

PM10 bottom 20% districts

0.3

0.7

Keratitis

PM10 top 20% districts

2.4

0.9

< 0.05fIn multiple regression

PM10 bottom 20% districts

1.4

1.7

  1. Abbreviations: SD standard deviation
  2. aVisit Index – number of patients with conjunctivitis or keratitis / number of all patients × 1000