Table 1

Baseline data

	Miscarriage				Abortion			Stillbirth
	0	1–3	>3	p Value	No	Yes	p Value	No	Yes	p Value
	n			p Value	n		p Value	n		p Value
Age group				0.358			<0.001			<0.001
35–44	2908	976	21		2965	951		3876	37
45–54	2972	910	23		3140	767		3853	59
≥55	2731	911	25		3337	335		3560	113
Missing	41				23			20
Education				<0.001			<0.001			<0.001
None/primary school completed	2516	801	20		3001	340		3249	92
Technical/professional school	3539	1064	31		3934	703		4557	82
Secondary school	690	217	5		667	248		911	4
University degree	1864	714	13		1837	762		2569	31
Missing	44				26			23
Alcohol drinking				0.971			0.009			0.192
Never	211	71	1		247	37		276	8
Former drinker	303	111	3		352	65		409	9
Only current drinker	116	34	1		136	15		145	6
Past and current drinker	7979	2581	64		8705	1936		10457	186
Missing	43				25			22
Smoking				0.010			<0.001			0.997
Never	4259	1283	31		4859	728		5485	101
Former	2441	878	20		2633	709		3284	61
Current	1911	636	18		1950	616		2520	47
Missing	41				23			20
Physical activity				0.149			0.028			0.019
Inactive	1029	367	8		1163	243		1369	39
Moderately inactive	3057	1023	26		3408	705		4033	78
Moderately active	2465	799	15		2711	572		3233	52
Active	2059	608	20		2159	533		2653	40
Missing	42				24			21
Diabetes mellitus				0.910			<0.001			<0.001
No	8390	2719	67		9168	2024		11000	195
Yes	211	73	2		263	25		274	14
Missing	56				38			35
Hyperlipidaemia				0.164			<0.001			0.010
No	6024	1956	41		6506	1525		7905	129
Yes	2587	841	28		2936	528		3384	80
Missing	41				23			20
Hypertension				0.054			<0.001			<0.001
No	6389	2096	43		6900	1643		8412	131
Yes	2222	701	26		2542	410		2877	78
Missing	41				23			20
	Mean (SD), range, and missing				Mean (SD), range and missing			Mean (SD), range and missing
Height (cm)
Mean (SD)	163.70 (6.21)	163.58 (6.26)	162.16 (5.69)	0.152	163.47 (6.20)	164.55 (6.29)	<0.001	163.70 (6.22)	161.40 (6.08)	<0.001
Range	135.7–198.0	138.0–188.5	147.8–178.0		135.7–198.0	135.8–185.5		135.7–198.0	143.6–188.3
Missing	41
Weight (kg)
Mean (SD)	68.46 (12.48)	68.43 (12.56)	69.84 (10.65)	0.889	68.87 (12.59)	66.59 (11.81)	<0.001	68.45 (12.49)	69.22 (12.66)	0.374
Range	29.3–149.8	42.8–152.0	48.9–94.0		29.3–152.0	42.8–140.0		29.3–152.0	47.1–114.4
Missing (n)	41
Body mass index (kg/m²)
Mean (SD)	25.46 (4.60)	25.48 (4.62)	26.36 (4.53)	0.558	25.81 (4.65)	24.46 (4.28)	<0.001	25.45 (4.60)	26.73 (4.83)	<0.001
Range	16.0–48.4	16.7–48.4	18.1–38.6		16.0–54.2	16.5-49.7		16.0–54.2	18.8–42.9
Missing (n)	41
Waist to hip ratio
Mean (SD)	0.80 (0.06)	0.81 (0.07)	0.82 (0.07)	0.025	0.81 (0.07)	0.79 (0.06)	<0.001	0.81 (0.7)	0.82 (0.07)	<0.001
Range	0.5–1.3	0.6–1.4	0.7–1.1		0.5–1.4	0.5–1.1		0.5–1.4	0.7–1.1
Missing (n)	41