Table 6 Common words used as a title in the retrieved documents about emergency contraception
From: Worldwide research productivity in emergency contraception: a bibliometric analysis
No. | Word or phrase | Frequency (%)* |
|---|---|---|
1 | “emergency contraception” | 1436 (67) |
2 | “morning after” | 401 (18) |
3 | ‘levonorgestrel” | 147 (6) |
4 | “emergency contraceptive pills” | 118 (5) |
5 | “Intrauterine device” or “IUD” | 65 (3) |
6 | “Yuzpe” or “Plan B” | 75 (3.5) |
7 | “Post-coital” | 52 (2) |
8 | “emergency hormonal contraception” | 34 (1.6) |
9 | “Ulipristal acetate” | 33 (1.5) |