Determinants of emergency contraception non-use among women in
                    unplanned or ambivalent pregnancies

Santos, Osmara Alves dos; Borges, Ana Luiza Vilela; Chofakian, Christiane Borges do Nascimento; Pirotta, Kátia Cibelle Machado

doi:10.1590/S0080-623420140000600003

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Artigo Original • Rev. esc. enferm. USP 48 (spe) • Aug 2014 • https://doi.org/10.1590/S0080-623420140000600003 linkcopy

Determinants of emergency contraception non-use among women in unplanned or ambivalent pregnancies^*

Determinantes del no uso de la anticoncepción de emergencia entre mujeres con embarazo no planeado u ambivalente

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstracts

Objective To analyze the determinants of emergency contraception non-use among women in unplanned and ambivalent pregnancies.

Method Cross-sectional study with a probabilistic sample of 366 pregnant women from 12 primary health care units in the city of São Paulo, Brazil. A multinomial logistic regression was performed, comparing three groups: women who used emergency contraception to prevent ongoing pregnancies (reference); women who made no use of emergency contraception, but used other contraceptive methods; and women who made no use of any contraceptive methods at all.

Results Cohabitation with a partner was the common determinant of emergency contraception non-use. No pregnancy risk awareness, ambivalent pregnancies and no previous use of emergency contraception also contributed to emergency contraception non-use.

Conclusion Apart from what is pointed out in the literature, knowledge of emergency contraception and the fertile period were not associated to its use.

Pregnancy unplanned; Contraceptives postcoital; Family planning; Reproductive health; Primary health care

Variables	Use of Contraceptive Methods
Variables	Women who used EC to prevent current pregnancy		Women who used a contraceptive method but not EC^*		Women who used neither contraceptive method nor EC^*		Total		p^**
Pregnancy risk awareness
No	9	25.0	86	53.1	32	19.1	127	34.7	<0.001
Yes	27	75.0	76	46.9	136	81.0	239	65.3
Knowledge about the fertile period
No	29	80.6	136	84.0	145	86.3	310	84.7	0.643
Yes	7	19.4	26	16.1	23	13.7	56	15.3
Living with a partner
No	17	47.2	35	21.6	33	19.6	85	23.2	<0.001
Yes	19	52.8	127	78.4	135	80.4	281	76.8
Color
White	12	33.3	49	30.3	36	21.4	97	26.5	0.120
Non-white	24	66.7	113	69.8	132	78.6	269	75.5
Economic class
A/B	8	22.2	26	16.0	34	20.2	68	18.6	0.807
C	25	69.4	120	74.1	112	66.7	257	70.2
D/E	3	8.3	15	9.3	15	8.9	33	9.0
No answer	-	-	1	0.6	7	4.2	8	2.2
Religion
Catholic	12	33.3	68	42.0	65	38.7	145	39.6	0.286
Protestant	12	33.3	62	38.3	52	31.0	126	34.4
None	10	27.8	22	13.6	38	22.6	70	19.1
Others^***	2	5.6	10	6.2	13	7.6	25	6.8
Previous abortion
No	29	80.6	126	77.8	129	76.8	284	77.6	0.883
Yes	7	19.4	36	22.2	39	23.2	82	22.4
With children
No	16	44.4	56	34.6	87	51.8	159	43.4	0.007
Yes	20	55.6	106	65.4	81	48.2	207	56.6
Previous use of EC
No	7	19.4	69	42.6	86	51.2	162	44.3	0.002
Yes	29	80.6	93	57.4	82	48.8	204	55.7
Planning current pregnancy
Ambivalent	22	61.1	102	63.0	146	86.9	270	73.8	<0.001
Unplanned	14	38.9	60	37.0	22	13.1	96	26.2
Variables	Mean		Mean		Mean		Total		p^**
	SD		SD		SD
Age (in years)	25.2 (6.2)		25.4 (6.4)		24.6 (6.8)		25.0 (6.5)		0.576
Educational level (in years)	9.7 (2.0)		9.4 (2.3)		9.4 (2.6)		9.5 (2.4)		0.856
Level of knowledge about EC	4.2 (2.1)		3.6 (2.0)		3.3 (2.0)		3.5 (2.0)		0.056
Total	36		162		168		366

Variable	Women who used a contraceptive method but not EC^*		Women who used neither contraceptive methods nor EC^*
OR	CI 95%	OR	CI 95%
Pregnancy risk awareness
No	3.44	1.48-8.03^*	0.78	0.32-1.90
Yes	1.00	-	1.00	-
Knowledge about the fertile period
No	1.27	0.46-3.51	1.23	0.44-3.42
Yes	1.00	-	1.00	-
Living with a partner
No	1.00	-	1.00	-
Yes	3.23	1.43-7.28^*	3.19	1.40-7.27***
With children
No	0.76	0.33-1.77	1.21	0.52-2.78
Yes	1.00	-	1.00	-
Educational level (in years)	0.99	0.84-1.17	0.96	0.81-1.13
Color
White	0.95	0.41-2.16	0.64	0.27-1.48
Non-white	1.00	-	1.00	-
Planning current pregnancy
Ambivalent	1.10	0.46-2.62	3.40	1.56-8.54***
Unplanned	1.00	-	1.00	-
Level of knowledge about EC	0.94	0.76-1.16	0.90	0.72-1.11
Previous use of EC
No	2.6	1.00-6.61	3.52	1.38-8.97***
Yes	1.00	-	1.00	-

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Universidade de São Paulo, Escola de Enfermagem Av. Dr. Enéas de Carvalho Aguiar, 419 , 05403-000 São Paulo - SP/ Brasil, Tel./Fax: (55 11) 3061-7553, - São Paulo - SP - Brazil
E-mail: reeusp@usp.br

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[TFN01] ^*
The use of contraceptive methods in the month they became pregnant

[TFN02] ^**
significant <0.20;

[TFN03] ^***
Spiritist, Adventist, Umbanda, Buddhist, Islamic, Mormon, various religions

Determinants of emergency contraception non-use among women in unplanned or ambivalent pregnancies*

Determinantes del no uso de la anticoncepción de emergencia entre mujeres con embarazo no planeado u ambivalente

Abstracts

Determinants of emergency contraception non-use among women in unplanned or ambivalent pregnancies^*