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Table 3 Relationship between respiratory diseases with PM2.5 quintiles in children under 5 years in Lima-Perua

From: Association of PM2.5 concentration with health center outpatient visits for respiratory diseases of children under 5 years old in Lima, Peru

Health center outpatients visitsQuintileRRaEXP95% CI
ALRI < 2 mI (< 15.64)1  
II (15.64–17.48)1.030.981 .56
III (17.49–19.71)1.04**1.051.7
IV (19.72–25.08)1.06**1.091.98
V (25.09–48.62)1.14**1.773.72
ALRI 2-11 mI (< 15.64)1  
II (15.64–17.48)1.05**1.21.6
III (17.49–19.71)1.05**1.211.64
IV (19.72–25.08)1.06**1.261.82
V (25.09–48.62)1.13**1.93.07
ALRI 1-4aI (< 15.64)1  
II (15.64–17.48)1.04**1.141.49
III (17.49–19.71)1.04**1.151.53
IV (19.72–25.08)1.07**1.311.88
V (25.09–48.62)1.14**1.983.18
PNEU 2-11 mI (< 15.64)1  
II (15.64–17.48)1.000.452.36
III (17.49–19.71)1.010.462.36
IV (19.72–25.08)1.120.855.74
V (25.09–48.62)1.32**2.1423.33
PNEU 1-4aI (< 15.64)1  
II (15.64–17.48)1.040.742.36
III (17.49–19.71)1.13**1.374.29
IV (19.72–25.08)1.14**1.265.07
V (25.09–48.62)1.26**2.1912.52
Acute bronchiolitis /Asthma <2aI (< 15.64)1  
II (15.64–17.48)1.07**1.31.98
III (17.49–19.71)1.08**1.412.19
IV (19.72–25.08)1.07**1.272.19
V (25.09–48.62)1.19**2.44.79
Acute bronchiolitis /Asthma 2-4aI (< 15.64)1  
II (15.64–17.48)1.05**1.111.71
III (17.49–19.71)1.06**1.21.88
IV (19.72–25.08)1.07**1.252.19
V (25.09–48.62)1.192.444.97
  1. aNegative binomial Model adjusted by temperature, relative humidity, season, year and districts. Bold values denote statistical significance. ALRI = Acute Lower Respiratory Infections. PNEU pneumonia, RR rate ratio, CI confidence interval. Average district-level PM2.5 during the same week (lag 0) was used as exposure.** = p < 0.05