Table 1 Specifications of studies entered the study
Row | Author [References] | Publication year | Area | Participants’ Age | RLS scale | RLS Questionnaire scale | Sample size | Prevalence |
|---|---|---|---|---|---|---|---|---|
1 | Facco, F. L. [4] | 2010 | America | 29.7 ± 5.5 | International Restless Legs Syndrome Question Set | self-administered questionnaire | 189 | 31.3% |
2 | Neau [20] | 2009 | France | 29.2 | International RLS (IRLS) Study Group | self-administered close-ended questionnaire | 355 | 21.7% |
3 | Sarberg [21] | 2012 | Sweden | 30.1 | International RLS Study Group | After written and oral information | 160 | 29.60% |
4 | Terzi [22] | 2015 | Turkey | 28.0 ± 5.5 | International RLS Study Group | Face to face interview questionnaire | 83 | 62.7% |
5 | Alves [23] | 2010 | Brazil | 27.3 | International RLS study group rating scale (IRLS) and IRLSSG in 2003 | clinical-diagnostic interview | 237 | 15.18% |
6 | Harano [24] | 2008 | Japan | 29.9 ± 4.6 | International RLS Study Group | selfadministrated questionnaire | 344 | 3.5% |
7 | A.lee [25] | 2001 | California | 25–39 | 30 | 23% | ||
8 | Neau [26] | 2010 | France | 28.8 ± 4.6 | International RLS (IRLS) Study Group | self-administered close-ended questionnaire | 406 | 38.4% |
9 | Shang [27] | 2014 | China | 26.0 ± 6.4 | International Restless Legs Syndrome Study Group (IRLSSG) | Face to face interview | 547 | 16.1% |
10 | Shahzad [28] | 2018 | Pakistan (Lahour) | 28.2 ± 5.4 | International RLS study group rating scale | interviewed via well-defined pre tested questionnaire | 80 | 36.3% |