Table 4. Distribution of variables related to knowledge about emergency contraception.

Characteristics	n	%
Considers that EC protects against sexually transmitted diseases (n = 1,739)
No	1,681	96.7
Yes	58	3.3
Used EC (n = 58)	14	24.1
Considers EC abortifacient (n = 1,737)
No	1,290	74.3
Yes	447	25.7
Used EC (n = 447)	169	37.8
Impairs the effectiveness of EC (n = 1,740)
Ingest it on an empty stomach	61	3.5
Ingest it with alcoholic beverage	890	51.1
Ingest it before sexual intercourse	644	37.0
Continuously usage as routine contraception	1,360	78.2
Frequently usage	672	38.6
Other	47	2.7
The time EC can be used after unprotected intercourse (n = 1,740)
No	465	26.7
Yes	1,275	73.3
Time (n = 1,275)
Up to 24 hours	283	22.2
Used EC (n = 283)	106	37.4
Up to 48 hours	312	24.5
Used EC (n = 312)	158	50.6
Up to 72 hours	674	52.8
Used EC (n = 674)	475	70.4
Up to 96 hours	2	0.2
Used EC (n = 2)	2	100
Up to 120 hours	3	0.2
Used EC (n = 3)	1	33.3
There is no time limit	1	0.1
Used EC (n = 1)	0	0.0

EC: emergency contraception.