Longitudinal study of the relationship between number of prior miscarriages or stillbirths and changes in quality of life of pregnant women: the Japan Environment and Children’s Study (JECS)

Table 5 Results of linear mixed model analyses of PCS and MCS scores for multiparas

Effect	Level	Period	Crude		Adjusted^a
	NMS		PCS	MCS	PCS	MCS
	NMS		β(95%CI)	β(95%CI)	β(95%CI)	β(95%CI)
Period		Early	reference	reference	reference	reference
Period		Mid/late	0.29 (0.20, 0.37)	2.77 (2.69, 2.85)	0.74 (0.40, 1.09)	2.27 (1.94, 2.59)
NMS	0	Early	45.32 (45.25, 45.40)	46.33 (46.25, 46.40)	reference	reference
	1	Early	− 0.49 (− 0.67, − 0.32)	− 0.23 (− 0.41, − 0.06)	− 0.28 (− 0.45, − 0.11)	− 0.18 (− 0.35, − 0.01)
	2	Early	− 0.78 (− 1.12, − 0.44)	− 0.20 (− 0.53, 0.13)	− 0.45 (− 0.77, − 0.12)	− 0.05 (− 0.36, 0.27)
	≥ 3	Early	− 1.46 (− 2.09, − 0.83)	− 0.10 (− 0.75, 0.54)	− 0.90 (− 1.48, − 0.31)	0.18 (− 0.43, 0.79)
NMS × Period	0 ×	Mid/late	reference	reference	reference	reference
	1 ×	Mid/late	0.18 (− 0.01, 0.37)	0.14 (− 0.04, 0.32)	0.17 (− 0.02, 0.36)	0.11 (− 0.07, 0.29)
	2 ×	Mid/late	0.21 (− 0.16, 0.58)	− 0.11 (− 0.45, 0.24)	0.15 (− 0.21, 0.51)	− 0.16 (− 0.50, 0.18)
	≥ 3 ×	Mid/late	0.99 (0.29, 1.69)	0.00 (− 0.69, 0.68)	0.81 (0.14, 1.48)	− 0.08 (− 0.76, 0.60)

Boldface indicates significance at p values less than 0.05
NMS Number of miscarriages or stillbirths, PCS Physical Component Summary, MCS Mental Component Summary
^aAdjusted for age during pregnancy; pre-pregnancy BMI; parity; physical activity; history of depression, anxiety disorder, dysautonomia, or schizophrenia; history of any physical disease; marital status; employed during early pregnancy; highest educational level; annual household income; alcohol intake; smoking status; morning sickness; questionnaires administered in early pregnancy; questionnaires administered in mid/late pregnancy

ISSN: 1471-2393