Table 2.

Patients to accepted to take part to PREMs over time: absolute numbers of participants and participation rate, as ratio between patients who accepted to take part to PREMs and discharged patients, and relative mean, minimum, maximum and standard deviation)

			Participants by month				Participation rate by month
Total by month	Total Participants	Mean Participation Rate	Mean	Min	Max	SD	Mean	Min	Max	SD
mar-18	3	1%	3	3	3	–	1%	1%	1%	–
apr-18	88	43%	88	88	88	–	43%	43%	43%	–
may-18	146	71%	146	146	146	–	71%	71%	71%	–
jun-18	147	71%	147	147	147	–	71%	71%	71%	–
jul-18	172	35%	86	31	141	77.78	35%	1%	68%	48%
aug-18	280	32%	140	124	156	22.63	32%	3%	60%	40%
sep-18	359	31%	179.5	11	242	88.39	31%	5%	57%	37%
oct-18	746	24%	149.2	67	241	72.30	23%	5%	66%	29%
nov-18	1919	20%	191.9	1	583	157.60	23%	4%	61%	20%
dec-18	2996	14%	166.44	11	772	189.97	19%	1%	75%	21%
jan-19	4207	23%	210.35	29	726	179.58	26%	1%	72%	19%
feb-19	4708	26%	224.19	6	810	200.82	27%	1%	81%	1%
Total	15,771	–
Mean	1173.17	33%
Min	3	1%
Max	4200	71%
SD	1510.83	21%

Note. Time-period: March 2018–February 2019