测量日期	24小时							sum	F	P
测量日期		2:00	6:00	10:00	14:00	18:00	22:00	sum	F	P
术前3天	x	16.9	16.9	16.7	15.7	15.7	15.8	16.3	20.865	<0.001
术前3天	s	2.2	2.3	1.9	2.0	2.1	2.0	2.1	20.865	<0.001
术后6月	x	11.0	10.9	10.4	9.9	9.8	10.0	10.3	16.484	<0.001
术后6月	s	1.5	1.5	1.7	1.5	1.4	1.3	1.6	16.484	<0.001
Sum	x	14.0	13.9	13.5	12.8	12.7	12.9	13.3	36.728^*	<0.001^*
Sum	s	3.5	3.6	3.6	3.4	3.4	3.4	3.5	36.728^*	<0.001^*
t		23.615	21.161	28.680	27.177	25.086	26.691	61.467	(F = 0.914, P = 0.465 )▷
P		<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	(F = 0.914, P = 0.465 )▷