. | Year 1 . | Year 2 . | Year 3 . | ||||||
---|---|---|---|---|---|---|---|---|---|
. | n . | % . | n . | % . | n . | % . | |||
Most Frequent Type of Method Used | |||||||||
Most effective | 1,218 | 22.0 | 1,352 | 24.4 | 1,457 | 26.3 | |||
Moderately effective | 997 | 18.0 | 995 | 18.0 | 960 | 17.3 | |||
Least effective | 822 | 14.8 | 854 | 15.4 | 884 | 16.0 | |||
No method | 2,502 | 45.2 | 2,338 | 42.2 | 2,238 | 40.4 | |||
Emergency Contraception Use (months) | |||||||||
0 | 5,480 | 98.9 | 5,453 | 98.5 | 5,412 | 97.7 | |||
1+ | 59 | 1.0 | 86 | 1.6 | 127 | 2.3 | |||
Frequency of Method Type Switches | |||||||||
0 | 4,338 | 78.3 | 4,225 | 76.3 | 4,133 | 74.6 | |||
1 | 711 | 12.8 | 762 | 13.8 | 754 | 13.6 | |||
2+ | 490 | 8.9 | 552 | 9.9 | 652 | 11.9 | |||
Parity (live births) | |||||||||
0 | 2,738 | 49.4 | 2,618 | 47.3 | 2,517 | 45.4 | |||
1 | 1,069 | 19.3 | 1,067 | 19.3 | 1,036 | 18.7 | |||
2 | 954 | 17.2 | 1,026 | 18.5 | 1,085 | 19.6 | |||
3+ | 778 | 14.1 | 828 | 14.9 | 901 | 16.3 | |||
Marital Status | |||||||||
Married throughout study period | 1,560 | 28.2 | 1,629 | 29.4 | 1,679 | 30.3 | |||
Single, never married | 3,230 | 58.3 | 3,122 | 56.4 | 3,024 | 54.6 | |||
Single, previously married (prior to study period) | 535 | 9.7 | 578 | 10.4 | 621 | 11.2 | |||
Married within study year | 136 | 2.5 | 134 | 2.4 | 130 | 2.4 | |||
Marriage dissolution within study year | 78 | 1.4 | 76 | 1.4 | 85 | 1.5 | |||
Condom Use Frequency (months) | |||||||||
0 | 4,331 | 78.2 | 4,292 | 77.5 | 4,189 | 75.6 | |||
1 | 157 | 2.8 | 198 | 3.6 | 231 | 4.2 | |||
2 | 141 | 2.6 | 102 | 1.8 | 126 | 2.3 | |||
3 | 93 | 1.7 | 106 | 1.9 | 100 | 1.8 | |||
4 | 80 | 1.4 | 89 | 1.6 | 105 | 1.9 | |||
5 | 58 | 1.1 | 70 | 1.3 | 86 | 1.6 | |||
6 | 59 | 1.1 | 53 | 1.0 | 65 | 1.2 | |||
7 | 46 | 0.8 | 56 | 1.0 | 56 | 1.0 | |||
8 | 41 | 0.7 | 58 | 1.1 | 68 | 1.2 | |||
9 | 44 | 0.8 | 49 | 0.9 | 43 | 0.8 | |||
10 | 44 | 0.8 | 36 | 0.7 | 47 | 0.9 | |||
11 | 26 | 0.5 | 39 | 0.7 | 42 | 0.8 | |||
12 | 419 | 7.6 | 391 | 7.1 | 381 | 6.9 | |||
Unprotected Sexual Activity (months) | |||||||||
0 | 4,484 | 81.0 | 4,473 | 80.8 | 4,028 | 72.7 | |||
1 | 98 | 1.8 | 113 | 2.0 | 127 | 2.3 | |||
2 | 75 | 1.4 | 65 | 1.2 | 152 | 2.7 | |||
3 | 61 | 1.1 | 76 | 1.4 | 117 | 2.1 | |||
4 | 59 | 1.1 | 62 | 1.1 | 105 | 1.9 | |||
5 | 57 | 1.0 | 49 | 0.9 | 111 | 2.0 | |||
6 | 56 | 1.0 | 65 | 1.2 | 83 | 1.5 | |||
7 | 49 | 0.9 | 53 | 1.0 | 88 | 1.6 | |||
8 | 48 | 0.9 | 44 | 0.8 | 64 | 1.2 | |||
9 | 63 | 1.1 | 57 | 1.0 | 90 | 1.6 | |||
10 | 50 | 0.9 | 52 | 0.9 | 75 | 1.4 | |||
11 | 50 | 0.9 | 30 | 0.5 | 79 | 1.4 | |||
12 | 389 | 7.0 | 400 | 7.2 | 420 | 7.6 | |||
Sexual Activity (months) | |||||||||
0 | 1,642 | 29.6 | 1,425 | 25.7 | 1,287 | 23.2 | |||
1 | 137 | 2.5 | 154 | 2.8 | 150 | 2.7 | |||
2 | 123 | 2.2 | 121 | 2.2 | 131 | 2.4 | |||
3 | 105 | 1.9 | 117 | 2.1 | 114 | 2.1 | |||
4 | 125 | 2.3 | 118 | 2.1 | 138 | 2.5 | |||
5 | 96 | 1.7 | 143 | 2.6 | 119 | 2.2 | |||
6 | 113 | 2.0 | 122 | 2.2 | 147 | 2.7 | |||
7 | 123 | 2.2 | 142 | 2.6 | 135 | 2.4 | |||
8 | 118 | 2.1 | 134 | 2.4 | 159 | 2.9 | |||
9 | 119 | 2.2 | 159 | 2.9 | 155 | 2.8 | |||
10 | 149 | 2.7 | 163 | 2.9 | 175 | 3.2 | |||
11 | 104 | 1.9 | 148 | 2.7 | 171 | 3.1 | |||
12 | 2,585 | 46.7 | 2,593 | 46.8 | 2,658 | 48.0 | |||
Mean | Min. | Max. | Mean | Min. | Max. | Mean | Min. | Max. | |
Age (mean, range) | 29.0 | 13 | 47 | 30.0 | 14 | 48 | 31.0 | 15 | 49 |
. | Year 1 . | Year 2 . | Year 3 . | ||||||
---|---|---|---|---|---|---|---|---|---|
. | n . | % . | n . | % . | n . | % . | |||
Most Frequent Type of Method Used | |||||||||
Most effective | 1,218 | 22.0 | 1,352 | 24.4 | 1,457 | 26.3 | |||
Moderately effective | 997 | 18.0 | 995 | 18.0 | 960 | 17.3 | |||
Least effective | 822 | 14.8 | 854 | 15.4 | 884 | 16.0 | |||
No method | 2,502 | 45.2 | 2,338 | 42.2 | 2,238 | 40.4 | |||
Emergency Contraception Use (months) | |||||||||
0 | 5,480 | 98.9 | 5,453 | 98.5 | 5,412 | 97.7 | |||
1+ | 59 | 1.0 | 86 | 1.6 | 127 | 2.3 | |||
Frequency of Method Type Switches | |||||||||
0 | 4,338 | 78.3 | 4,225 | 76.3 | 4,133 | 74.6 | |||
1 | 711 | 12.8 | 762 | 13.8 | 754 | 13.6 | |||
2+ | 490 | 8.9 | 552 | 9.9 | 652 | 11.9 | |||
Parity (live births) | |||||||||
0 | 2,738 | 49.4 | 2,618 | 47.3 | 2,517 | 45.4 | |||
1 | 1,069 | 19.3 | 1,067 | 19.3 | 1,036 | 18.7 | |||
2 | 954 | 17.2 | 1,026 | 18.5 | 1,085 | 19.6 | |||
3+ | 778 | 14.1 | 828 | 14.9 | 901 | 16.3 | |||
Marital Status | |||||||||
Married throughout study period | 1,560 | 28.2 | 1,629 | 29.4 | 1,679 | 30.3 | |||
Single, never married | 3,230 | 58.3 | 3,122 | 56.4 | 3,024 | 54.6 | |||
Single, previously married (prior to study period) | 535 | 9.7 | 578 | 10.4 | 621 | 11.2 | |||
Married within study year | 136 | 2.5 | 134 | 2.4 | 130 | 2.4 | |||
Marriage dissolution within study year | 78 | 1.4 | 76 | 1.4 | 85 | 1.5 | |||
Condom Use Frequency (months) | |||||||||
0 | 4,331 | 78.2 | 4,292 | 77.5 | 4,189 | 75.6 | |||
1 | 157 | 2.8 | 198 | 3.6 | 231 | 4.2 | |||
2 | 141 | 2.6 | 102 | 1.8 | 126 | 2.3 | |||
3 | 93 | 1.7 | 106 | 1.9 | 100 | 1.8 | |||
4 | 80 | 1.4 | 89 | 1.6 | 105 | 1.9 | |||
5 | 58 | 1.1 | 70 | 1.3 | 86 | 1.6 | |||
6 | 59 | 1.1 | 53 | 1.0 | 65 | 1.2 | |||
7 | 46 | 0.8 | 56 | 1.0 | 56 | 1.0 | |||
8 | 41 | 0.7 | 58 | 1.1 | 68 | 1.2 | |||
9 | 44 | 0.8 | 49 | 0.9 | 43 | 0.8 | |||
10 | 44 | 0.8 | 36 | 0.7 | 47 | 0.9 | |||
11 | 26 | 0.5 | 39 | 0.7 | 42 | 0.8 | |||
12 | 419 | 7.6 | 391 | 7.1 | 381 | 6.9 | |||
Unprotected Sexual Activity (months) | |||||||||
0 | 4,484 | 81.0 | 4,473 | 80.8 | 4,028 | 72.7 | |||
1 | 98 | 1.8 | 113 | 2.0 | 127 | 2.3 | |||
2 | 75 | 1.4 | 65 | 1.2 | 152 | 2.7 | |||
3 | 61 | 1.1 | 76 | 1.4 | 117 | 2.1 | |||
4 | 59 | 1.1 | 62 | 1.1 | 105 | 1.9 | |||
5 | 57 | 1.0 | 49 | 0.9 | 111 | 2.0 | |||
6 | 56 | 1.0 | 65 | 1.2 | 83 | 1.5 | |||
7 | 49 | 0.9 | 53 | 1.0 | 88 | 1.6 | |||
8 | 48 | 0.9 | 44 | 0.8 | 64 | 1.2 | |||
9 | 63 | 1.1 | 57 | 1.0 | 90 | 1.6 | |||
10 | 50 | 0.9 | 52 | 0.9 | 75 | 1.4 | |||
11 | 50 | 0.9 | 30 | 0.5 | 79 | 1.4 | |||
12 | 389 | 7.0 | 400 | 7.2 | 420 | 7.6 | |||
Sexual Activity (months) | |||||||||
0 | 1,642 | 29.6 | 1,425 | 25.7 | 1,287 | 23.2 | |||
1 | 137 | 2.5 | 154 | 2.8 | 150 | 2.7 | |||
2 | 123 | 2.2 | 121 | 2.2 | 131 | 2.4 | |||
3 | 105 | 1.9 | 117 | 2.1 | 114 | 2.1 | |||
4 | 125 | 2.3 | 118 | 2.1 | 138 | 2.5 | |||
5 | 96 | 1.7 | 143 | 2.6 | 119 | 2.2 | |||
6 | 113 | 2.0 | 122 | 2.2 | 147 | 2.7 | |||
7 | 123 | 2.2 | 142 | 2.6 | 135 | 2.4 | |||
8 | 118 | 2.1 | 134 | 2.4 | 159 | 2.9 | |||
9 | 119 | 2.2 | 159 | 2.9 | 155 | 2.8 | |||
10 | 149 | 2.7 | 163 | 2.9 | 175 | 3.2 | |||
11 | 104 | 1.9 | 148 | 2.7 | 171 | 3.1 | |||
12 | 2,585 | 46.7 | 2,593 | 46.8 | 2,658 | 48.0 | |||
Mean | Min. | Max. | Mean | Min. | Max. | Mean | Min. | Max. | |
Age (mean, range) | 29.0 | 13 | 47 | 30.0 | 14 | 48 | 31.0 | 15 | 49 |