Table 1

Daily mean number of AR consultations and RR by metrological, pollen and pollutant variables

	Mean daily AR consultations	RR	95% CI
Daily temperature
1.0°C–5.4°C	38	0.36	0.31 to 0.43
5.4°C–9.8°C	102	0.75	0.71 to 0.79
9.8°C–14.2°C	225	1.19	1.13 to 1.25
14.2°C–18.6°C	370	1.46	1.24 to 1.72
18.6°C–23.0 °C	324	1.39	0.99 to 1.94
Daily rainfall
0–3.9 mm/day	233	1.5	1.26 to 1.78
3.9–7.8 mm/day	154	1.21	1.12 to 1.30
7.8–11.7 mm/day	179	1.01	1.00 to 1.03
11.7–15.6 mm/day	78	0.89	0.82 to 0.96
15.6–19.5 mm/day	65	0.81	0.67 to 0.98
Tree pollen *
0–65 g/m³	431	1.01	0.98 to 1.04
65–130 g/m³	420	1.21	1.07 to 1.36
130–195 g/m³	253	1.39	1.15 to 1.68
195–260 g/m³	536	1.56	1.24 to 1.95
260–325 g/m³	598	1.69	1.32 to 2.15
Grass/Nettle pollen
0–54 g/m³	309	0.97	0.94 to 0.99
54–108 g/m³	605	1.47	1.35 to 1.60
108–162 g/m³	359	2.08	1.79 to 2.41
162–216 g/m³	541	2.73	2.27 to 3.29
216–270 g/m³	517	3.33	2.69 to 4.12
NO2
20–35 µg/m³	202	0.97	0.93 to 1.01
35–50 µg/m³	263	1.12	1.02 to 1.23
50–64 µg/m³	211	1.24	1.04 to 1.47
64–79 µg/m³	197	1.31	1.04 to 1.65
79–94 µg/m³	141	1.33	0.98 to 1.82
Ozone
1–14 µg/m³	106	1.08	0.89 to 1.30
14–28 µg/m³	214	1.02	0.96 to 1.08
28–41 µg/m³	290	1	0.97 to 1.02
41–55 µg/m³	230	1.01	0.92 to 1.11
55–68 µg/m³	265	1.06	0.88 to 1.28
PM2.5
6–15 µg/m³	230	1.41	1.15 to 1.73
15–24 µg/m³	235	1.14	1.04 to 1.25
24–34 µg/m³	189	1.01	0.99 to 1.04
34–43 µg/m³	132	0.98	0.88 to 1.09
43–52 µg/m³	91	1.04	0.77 to 1.41

*Aggregated tree pollen grains include Betula (birch tree), Quercus (oak tree) and Platanus (plane tree).
AR, allergic rhinitis; RR, relative risk.