| 21. | Pregnancy rates may range from 0-48 % ( Rock, 1985)
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| 22. | I could make my pregnancy rates look better by not allowing them to cycle.
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| 23. | Prior research found an unclear effect on spontaneous pregnancy rates.
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| 24. | Sociological barriers to economic progress like a high teen-age pregnancy rate have receded, too.
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| 25. | Teen-age pregnancy rates, though falling sharply, are still the highest in the industrial world.
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| 26. | Tobacco use is relatively stable, teen-age pregnancy rates are stable but still exceedingly high.
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| 27. | Pregnancy rates, birth rates and abortion rates are dropping, and contraceptive use is up.
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| 28. | The teen pregnancy rate has dropped 17 percent since 1990.
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| 29. | That's the highest teen pregnancy rate in the developed world.
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| 30. | The teen-age pregnancy rate is triple the state average.
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