Table 2.

Principal heart function parameters at presentation for patients include in the study, by period of observation

Perioda
	Control	Pandemic	p
Heart rate
Observations	10,246	1,703
Mean (bpm)	81.2	82.7
IQR	70–90	70–92	< 0.001b
Heart rate > 110 bpm
No	9,517 (75.9%)	1,557 (81.5%)
Yes	3,020 (24.1%)	354 (18.5%)	< 0.001b
O2 saturation
Observations	10,194	1,697
Mean (%)	95.9	94.9
IQR	95–98	94–98	< 0.001b
O2 saturation < 95%
No	10,125 (80.8%)	1,359 (71.1%)
Yes	3,412 (19.2%)	552 (28.9%)	< 0.001b
Systolic blood pressure
Observations	10,328	1,714
Mean (mmHg)	143.0	140.7
IQR	125–160	120–160	< 0.001b
Systolic blood pressure < 90 mmHg
No	12,377 (98.4%)	1,871 (97.9%)
Yes	200 (1.6%)	40 (2.1%)	0.113b

^aThe considered pandemic period spreads from February 21, 2020 to May 1, 2020, while as control period was used the sum of timespan from January 1, 2018 to May 1, 2018, from January 1, 2019 to May 1, 2019 and from January 1, 2020 to February 20, 2020

^bMann–Whitney testm, χ² test

^cInterquartile range