Research Article

Increased Outdoor PM2.5 Concentration Is Associated with Moderate/Severe Anemia in Children Aged 6–59 Months in Lima, Peru

Table 4

Logistic regression models between PM2.5 and mild and moderate/severe anemia.

PM2.5 (μg/m3)Sample nMild anemia (n = 42894)Moderate/severe anemia (n = 12322)
Crude OR (95% CI)Adjusted OR (95% CI)Crude OR (95% CI)Adjusted OR (95% CI)

1stQ (<18.23)277571111
2Q (18.23–20.25)278650.97 (0.960–1.084)1.02 (0.987–1.068)1.02 (0.960–1.084)1.09 (1.025–1.166)
3Q (20.26–24.96)279521.01 (0.969–1.043)0.99 (0.949–1.034)1.03 (0.969–1.094)1.09 (1.016–1.168)
4Q (24.97–28.84)278761.04 (1.009–1.086)1.00 (0.955–1.051)1.10 (1.045–1.177)1.19 (1.097–1.281)
5Q (28.85–51.00)279181.03 (0.999–1.075)1.04 (0.984–1.105)1.07 (1.010–1.140)1.24 (1.133–1.366)

Models are adjusted by gender, stunting, season, poverty, months, year, and Lima zone. Bold values denote statistical significance.