Table 4 Adjusted Odds ratios and 95% confidence intervals between each 10-unit increase in air pollutants and breast cancer stages.

PM₁₀ (μg/m³)

1.06 (0.97–1.16)

1.01 (0.93–1.09)

1.07 (0.97–1.17)

0.96 (0.86–1.07)

1.02 (0.92–1.13)

1.06 (0.94–1.18)

SO₂ (ppb)

0.96 (0.88–1.06)

1.04 (0.96–1.14)

1.07 (0.96–1.18)

0.9 (0.81–1.00)

0.98 (0.88–1.08)

0.87 (0.77–0.98)*

NO₂ (ppb)

1.07 (0.93–1.23)

1.02 (0.89–1.17)

1.01 (0.86–1.17)

1.00 (0.83–1.20)

0.98 (0.82–1.17)

0.96 (0.78–1.18)

NO (ppb)

1.08 (1.00–1.15)*

1.05 (0.98–1.12)

1.04 (0.96–1.12)

0.98 (0.90–1.07)

1.03 (0.95–1.11)

1.02 (0.93–1.12)

NO_X (ppb)

1.01 (0.98–1.05)

1.00 (0.97–1.03)

0.99 (0.96–1.02)

0.98 (0.94–1.01)

0.99 (0.96–1.03)

0.99 (0.95–1.03)

Benzene (μg/m³)

3.71 (0.92–15.04)

1.76 (0.45–6.86)

1.18 (0.25–5.58)

0.44 (0.10–1.87)

1.32 (0.34–5.06)

1.16 (1.01–1.33)*

Toluene (μg/m³)

1.44 (0.89–2.32)

1.17 (0.74–1.84)

1.17 (0.70–1.95)

0.66 (0.38–1.14)

1.00 (0.59–1.67)

0.99 (0.55–1.82)

Ethylbenzene (μg/m³)

10.41 (1.32–82.41)**

2.63 (0.35–19.47)

2.12 (0.22–20.48)

0.20 (0.02–2.01)

1.15 (0.13–9.86)

1.58 (0.13–19.51)

P-xylene(μg/m³)

9.01 (0.72–111.94)

1.93 (0.16–22.76)

1.80 (0.11–28.48)

0.19 (0.02–1.76)

1.69 (0.31–9.26)

1.84 (0.24–14.28)

O-xylene(μg/m³)

4.07 (1.46–11.33)**

1.44 (0.23–8.80)

1.58 (0.21–12.24)

0.23 (0.03–2.04)

1.24 (0.16–9.61)

1.18 (1.02–1.38)*

m-xylene(μg/m³)

2.89 (1.08–7.73)*

1.48 (0.57–3.89)

1.35 (0.45–4.02)

0.59 (0.21–1.68)

1.36 (0.52–3.56)

1.44 (0.46–4.52)

TBTEX (μg/m³)

1.18 (0.97–1.45)

1.04 (0.86–1.27)

1.04 (0.83–1.29)

0.88 (0.73–1.07)

1.05 (0.90–1.22)

1.04 (0.86–1.25)

Multipollutant level (Ref: Quartile 1-low)

Quartile 2

0.96 (0.39–2.35)

0.84 (0.38–1.82)

1.22 (0.56–2.61)

1.05 (0.37–2.97)

0.89 (0.34–2.32)

0.94 (0.35–2.54)

Quartile 3

1.15 (0.47–2.78)

0.83 (0.38–1.82)

1.09 (0.51–2.38)

1.33 (0.48–3.69)

1.21 (0.47–3.12)

1.42 (0.54–3.75)

Quartile 4-high

3.16 (1.17–8.53)**

2.16 (0.87–5.31)*

2.14 (0.86–5.32)

1.07 (0.39–2.94)

0.96 (0.37–2.46)

1.07 (0.46–2.48)