Table 6.

Tally of preterm birth risk symptoms reported via the MHP app by trimester.

Symptoms reported	Trimester 1 (n events)	Trimester 2 (n events)	Trimester 3 (n events)	Percent of total events (N=693), n (%)
None	73	332	205	610 (88.0)
Cramping	0	4	32	36 (5.2)
Feeling contraction	1	2	32	35 (5.1)
Abdominal pain	0	2	6	8 (1.2)
Vaginal bleeding	0	1	1	2 (0.3)
Gush or fluid leak	0	0	2	2 (0.3)
Total (N events)	74	341	278	693