The prevalence rates increased with increasing gravidity or parity.
出生缺陷发生率随着孕产次的增加而明显提高。
Although most times you can clearly see the signs of gravidity if you know what to look for, some females may not clearly appear to be gravid.
尽管大多数时候你可以从外观上捕捉到妊娠的信号，但有些雌性并不会表现出明显的妊娠特征。
The choice of contraceptive methods were affected by living areas, women's age, gravidity and parity, breast feeding, etc.
妇女的居住地域，年龄，孕产次及哺乳情况等对其方法的选用均有一定的影响。
The choice of contraceptive methods were affected by living areas, women's age, gravidity and parity, breast feeding, etc.
妇女的居住地域，年龄，孕产次及哺乳情况等对其方法的选用均有一定的影响。
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