Table 2.
Prevalence of back pain in the first trimester of pregnancy
| Author | Year | Reigen | Continent | Age | Type of study | pregnant sample size | Number of pregnants with back pain | Prevalence of back pain | Instrument |
|---|---|---|---|---|---|---|---|---|---|
| Rabiee et al. [12] | 2018 | Iran | Asia | 28.98 ± 5.02 | cross-sectional study | 98 | 62 | 63.3 | VAS Scale |
| Sencan et al. [32] | 2018 | Turkey | Asia | 26.5 ± 5.5 | cross-sectional study | 1500 | 251 | 17.43 | self-report |
| Weis et al. [31] | 2018 | Toronto | America | 28.4 ± 8.4 | cross-sectional study | 287 | 17 | 5.9 | self-report |
| Nazari et al. [33] | 2020 | Iran | Asia | - | cross-sectional study | 550 | 117 | 59.1 | self-report |