Table 6 Crude and adjusted Odds Ratios (OR) for absolute PM2.5 and temperature exposure categories estimated from conditional logistic regression models

From: The synergistic effects of PM2.5 and high temperature on community mortality in British Columbia

Predictors

Crude OR

Adjusted OR

PM2.5 Categories (µg/m3)

< 6

Ref

Ref

≥ 6–8

1.03 (0.99–1.07)

1.03 (0.99–1.07)

≥ 8–10

1.06 (1.00–1.12)

1.03 (0.98–1.10)

≥ 10–12

1.19 (1.10–1.29)

1.07 (0.99–1.17)

≥ 12–14

1.62 (1.48–1.78)

1.14 (1.02–1.27)

≥ 14–16

1.10 (0.96–1.27)

0.97 (0.84–1.13)

≥ 16

1.06 (0.96–1.16)

0.98 (0.89–1.08)

Temperature Categories (oC)

< 14

Ref

Ref

≥ 14–17

1.05 (1.01–1.10)

1.04 (1.00–1.09)

≥ 17–20

1.10 (1.05–1.16)

1.09 (1.03–1.15)

≥ 20–23

1.12 (1.04–1.19)

1.09 (1.02–1.18)

≥ 23–26

1.10 (0.99–1.21)

1.07 (0.97–1.19)

≥ 26

5.08 (4.35–5.93)

4.72 (3.98–5.60)

  1. Models were fit using conditional logistic regression using decedent ID as the strata.
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