Use of Medicines with Unknown Fetal Risk among Parturient Women from the 2004 Pelotas Birth Cohort (Brazil)

Table 1

Medicines used by the mothers participating in the 2004 Birth Cohort by the gestational trimester and percentages of mothers who used at least one medicine in the respective periods. Birth Cohort of Pelotas, RS 2004.

Trimester	Medicines (𝑛= 11,425)		Mothers (𝑛= 3,883)
	𝑛	%	𝑛	%
Start of the use of medicines^a
1st	3,241	29.9	1,909	50.0
2nd	3,847	35.6	2,377	62.2
3rd	3,738	34.5	2,260	59.1
Total	10,826	100.0	3,821^c	^e
Period of the use of medicines^b
1st	1,093	10.1	848	22.2
2nd	1,884	17.5	1,366	35.8
3rd	3,734	34.7	2,259	59.2
1st and 2nd	545	5.1	467	12.2
2nd and 3rd	1,939	18.0	1,504	39.4
1st, 2nd and 3rd	1,575	14.6	1,170	30.7
Total	10,770	100.0	3,814^d	^e

^a599 missing; ^b655 missing; ^c62 missing; ^d69 missing; ^ethe percentages do not add up to 100% since each mother who used any medicine could have used more than one medicine in the same period or in different periods.