Table 1.

Characteristics according to prescribed dispensing of aspirin

	At least one dispensing of aspirin					Total
	No		Yes		p-value
	(N=16,068)		(N=12,399)			(N=28,467)
	N	%	N	%		N	%
Characteristics at the beginning of the 2nd pregnancy
Mean age (SD) (years)	30.0	5.0	31.0	4.7	<0.0001	30.5	4.9
Social deprivation	3338	20.8	1693	13.7	<0.0001	5031	17.7
Obesity	1935	12.0	1392	11.2	0.0336	3327	11.7
Diabetes	265	1.7	231	1.9	0.1716	496	1.7
Tobacco use	1328	8.3	1067	8.6	0.3046	2395	8.4
Chronic hypertension	2396	14.9	2938	23.7	<0.0001	5334	18.7
Characteristics of the 1st pregnancy
Multiple pregnancy	621	3.9	295	2.4	<0.0001	916	3.2
Caesarean section	7594	47.3	8821	71.1	<0.0001	16415	57.7
Preterm birth (< 37 WG)	3619	22.5	7711	62.2	<0.0001	11330	39.8
IUFD	14	0.1	34	0.3	0.0001	48	0.2
Gestational diabetes	1725	10.7	1101	8.9	<0.0001	2826	9.9
Obstetrical haemorrhage	1407	8.8	1052	8.5	0.4180	2459	8.6
PE subtypes (1st pregnancy)					<0.0001
Mild and late PE	11295	70.3	4341	35.0		15636	54.9
Severe and late PE	3522	21.9	4161	33.6		7683	27.0
Mild and early	484	3.0	857	6.9		1341	4.7
Severe and early PE	767	4.8	3040	24.5		3807	13.4

IUFD intra-uterine foetal death, PE pre-eclampsia, SD standard deviation, WG weeks of gestation