Table 2.

Differences in timing of the start of the SAR peak period between relatively cold or warm start of the year.

	Start of the peak period (in week number)
	Q1	Median	Q3	Mean Rank Score	Kruskal–Wallis P value
CNT in January					0.44
Cold	13	15	16	15.6
Intermediate	10	14	15	11.3
Warm	12	14	16	14.2
CNT in February					0.70
Cold	10	13	15	11.0
Intermediate	12	14	16	14.0
Warm	12	14–15	15	12.8
CNT in March					0.06
Cold	15	15–16	17	17.6
Intermediate	12	14	16	13.4
Warm	8	11–12	13	7.5

Cold is defined as CNT < Q1 (=relatively low CNT).

Intermediate is defined as CNT between Q1 and Q3 (=median CNT).

Warm is defined as CNT > Q3 (=relatively high CNT).

Q1 = 1.79 degrees Celsius. Median = 4.33 degrees Celsius. Q3 = 5.86 degrees Celcius.