Table 2. Cosinor analysis variables of activity rhythms during gestational week 22 (G22), gestational week 32 (G32) and postpartum week 1 (PPW1).

	G22 n = 50	G32 n = 46	PPW1 n = 39	p-value of difference
				G22 vs. G32	G32 vs. PPW1
R2 (sd)	0.14 (0.05)	0.13 (0.07)	0.06 (0.04)	0.35	0.17
Mesor (sd)	84.97 (26.99)	84.40 (23.83)	81.92 (26.35)	0.04	<0.0001
Amplitude(sd)	67.58 (25.26)	62.54 (24.63)	42.53 (18.23)	0.03	<0.001
Acrophase (sd)	16:45 (3.25)	15:38 (2.49)	16:52 (1.75)	0.007	<0.0001