Omouma: a prospective mother and child cohort aiming to identify early biomarkers of pregnancy complications in women living in Qatar

Table 1 Study timeline and sample collection details from women during pregnancy, at delivery and post-partum and sample collection from neonates

Sample type/ Time points	Samples collection from women								Samples collection from neonate
Sample type/ Time points	T1	T2	T3	Del-T4	PP- T5	PP- T6	PP- T7	UE	B1	B2	B3	B4	B5	B6
Blood	+	+	+	+	+	+	+	+	+	+	+	+	+	+
Stool	+	+	+	+	+	+	+	+	+	+	+	+	+	+
Saliva^a	+	+	+	+	+	+	+	+	+	+	+	+	+	+
Urine	+	+	+	+	+	+	+	+	+	+	+	+	+	+
Vaginal Swab	+	+	+	+	+	+	+	+	-	-	-	-	-	-
Skin swab	+	+	+	+	+	+	+	+	+	+	+	+	+	+
Amniotic fluid	-	-	-	+	-	-	-	-	-	-	-	-	-	-
Cord blood	-	-	-	+	-	-	-	-	-	-	-	-	-	-
Placenta	-	-	-	+	-	-	-	-	-	-	-	-	-	-
Breast milk	-	-	-	-	+	+	+	-	-	-	-	-	-	-

^afor neonate, a buccal swab will be collected
T1: Trimester 1 (6–14 weeks); T2: Trimester 2 (20–24 weeks); T3: Trimester 3 (32–35 weeks); Del-T4: Delivery; PP-T5: post-partum (4–6 weeks post-partum); PP-T6: post-partum (6 months post-partum); PP-T7: post-partum (12 months post-partum); UE: Unwell Episode; B1: Birth (day 0); B2: Birth (1-1.5 months); B3: Birth (6 months); B4: Birth (12 months); B5: Birth (18 months); B6: Birth (24 months); +: sample collection; -: no sample collection

ISSN: 1471-2393