Table 2. Item and scale descriptives and item-scale correlations of the Portuguese mPEI at T1 and T2 (7 days later).

mPEI item	T1a (N=142)			T2b (N=86)
	Mean	s.d.	Correlation with total mPEI score	Mean	s.d.	Correlation with total mPEI score
Item 1	1.23	0.71	ρ (140)=0.77*	1.34	0.68	ρ (84)=0.84*
Item 2	1.39	0.67	ρ (140)=0.75*	1.50	0.61	ρ (84)=0.79*
Item 3	1.43	0.64	ρ (140)=0.80*	1.50	0.59	ρ (84)=0.80*
Item 4	1.26	0.68	ρ (140)=0.83*	1.37	0.60	ρ (84)=0.79*
Item 5	1.20	0.66	ρ (140)=0.84*	1.31	0.64	ρ (84)=0,77*
Item 6	1.33	0.65	ρ (140)=0.71*	1.41	0.64	ρ (84)=0.77*
Total	7.85	3.13		8.43	2.98

^aFirst interview.

^bSecond interview (7 days after first interview). *P<0.05.