Table 1.

Patients fully hospitalized at least once per period and length of stay by period (n = 78)

Patients fully hospitalized1
Period	R	P		P value*
3 months	17 (21.8)	1 (1.3)		<0.001
6 months	22 (28.2)	4 (5.1)		<0.001
Total length of stay (days)2
	R	P	P – R	P value**
3 months	7.6 0 (18.3)	0.4 0 (3.2)	−7.2 0 (17.2)	<0.001
6 months	13 0 (30)	2.1 0 (10.9)	−11 0 (30.9)	0.002

¹Notes: Values shown are the number of patients (%);

²Values shown are the mean (median, SD);

^*P value associated with the hypothesis of no difference between retrospective and prospective periods (McNemar’s test);

^**P values for difference P – R calculated using paired t-test.

Abbreviations: R, retrospective; P, prospective; SD, standard deviation.