TABLE 1-4 Cumulative Percentage of Women Who Have Ever Used Oral Contraceptives Prior to Selected Ages, by Birth Cohort, United States, 1987

 

Percent of Women Who Have Ever Used Oral Contraceptives Prior to Age:

Birth Cohort

15

18

20

25

30

35

40

45

50

55

1935-1939

0.0

0.1

0.3

8.9

28.9

39.9

45.0

46.5

46.9

46.9 a

1940-1944

0.1

0.4

4.8

43.5

62.0

66.9

67.9

67.9

67.9 a

 

1945-1949

0.2

4.1

21.5

66.8

77.2

80.1

80.6

80.6 a

   

1950-1954

0.5

9.6

34.2

72.3

78.4

80.4

80.6 a

     

1955-1959

1.1

18.6

44.9

72.1

78.6

79.4 a

       

1960-1964

2.2

22.9

47.1

76.0

78.2 a

         

1965-1969

1.8

24.9

44.3

9.5 a

           

a This figure is a conservative estimate because not all women in the cohort have reachedthe age in question.

SOURCE: Data from the 1987 National Health Interview Survey, adaptedfrom D. A.Dawson,"Trends in Use of Oral Contraceptives—Data fromthe 1987 National Health Interview Survey," Family Planning Perspectives 22(1990):169-172.

TABLE 1-5 Percent Distribution of Women Who Have Ever Used Oral Contraceptives, by Birth Cohort and by Timing of First Use, United States, 1987

   

Timing of Oral Conctaceptive Use

Birth Cohort

Age at Interview (years)

Before First Full-term Pregnancy (percent)

Same Age as Full-term Pregnancy (percent)

After First Full-term Pregnancy (percent)

1935-1939

48-52

11.9

3.4

84.7

1940-1944

43-47

31.7

7.5

60.8

1945-1949

38-42

53.2

12.2

34.6

1950-1954

33-37

67.3

11.7

21.0

1955-1959

28-32

72.0

9.9

18.1

1960-1964

23-27

75.8

10.6

13.6

1965-1969

18-22

77.3

12.8

9.9

SOURCE: Data from the 1987 National Health Interview Survey, adaptedfrom D. A. Dawson, "Trends in Use of Oral Contraceptives—Data fromthe 1987 National Health Interview Survey," Family Planning Perspectives 22(1990):169-172.



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