Environmental Health

Table 3 Association of air pollutants and glyceryl trinitrate dispensing in a multi-pollutant model

From: Association of air pollution and use of glyceryl trinitrate against angina pectoris: a population-based case-crossover study

	NO₂		O₃		PM₁₀		H₂S
Lag	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
24-hour mean
Model not including H ₂ S
0	1.069	1.028, 1.112	1.036	0.995, 1.078	1.005	0.991, 1.018
1	1.081	1.038, 1.125	1.088	1.045, 1.133	0.999	0.985, 1.014
2	1.037	0.994, 1.083	1.036	0.995, 1.080	1.003	0.988, 1.019
3	1.027	0.983, 1.074	1.020	0.978, 1.064	0.988	0.971, 1.004
Model including H ₂ S
0	1.059	1.012, 1.108	1.015	0.968, 1.065	1.002	0.985, 1.020	0.987	0.933, 1.045
1	1.074	1.025, 1.126	1.087	1.035, 1.141	0.995	0.976, 1.013	0.958	0.907, 1.013
2	1.054	1.003, 1.108	1.047	0.996, 1.101	1.001	0.982, 1.020	0.972	0.922, 1.025
3	1.032	0.980, 1.087	1.028	0.976, 1.083	0.983	0.962, 1.004	1.030	0.979, 1.083
3 day mean
Model not including H ₂ S
0	1.116	1.059, 1.176	1.090	1.036, 1.146	1.009	0.988, 1.030
1	1.071	1.014, 1.130	1.072	1.019, 1.129	0.998	0.976, 1.021
2	1.013	0.957, 1.071	1.018	0.965, 1.073	0.996	0.973, 1.019
3	0.977	0.923, 1.034	0.990	0.938, 1.046	1.000	0.978, 1.022
Model including H ₂ S
0	1.136	1.069, 1.207	1.094	1.029, 1.163	0.998	0.972, 1.024	0.934	0.866, 1.008
1	1.096	1.029, 1.168	1.094	1.028, 1.166	0.988	0.961, 1.015	0.975	0.906, 1.048
2	1.045	0.978, 1.117	1.038	0.972, 1.108	0.983	0.956, 1.012	1.003	0.933, 1.079
3	0.993	0.929, 1.061	0.997	0.933, 1.065	0.985	0.958, 1.013	1.027	0.951, 1.109

Data have been calculated in a unique multivariate analysis separately for each lag, taking into account simultaneously each pollutant variables.
No. of observations for 24-hour mean not including H₂S: lag 0: 22,436; lag 1: 22,327; lag 2: 22,288; and lag 3:22,367. No. of observations for 24-hour mean including H₂S: lag 0: 13,816; lag 1: 13,686; lag 2: 13,598; and lag 3: 13,650. No. of observations for 3-day mean not including H₂S: lag 0: 21,913; lag 1: 21,755; lag 2: 21,617; and lag 3: 21,682. No. of observations for 3-day mean including H₂S: lag 0: 13,816; lag 1: 13,686; lag 2: 13,598; and lag 3: 13,650.
The matched odds ratios (OR) and 95% confidence intervals (CI) for the dispensation of glyceryl trinitrate in Reykjavik, Iceland, associated with every 10 μg/m³ increase in NO₂, O₃, PM₁₀, and H₂S 24-hour mean and 3-day mean concentrations. Adjusted for each pollutant variable, temperature, and relative humidity.

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ISSN: 1476-069X

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