Table 1.
Sleep duration and stroke prevalence—cross-sectional studies.
| Study | Sample Size | Sleep Duration (Hours/Day) | Long Sleeper % | Odds Ratio (95% CI) | Country | ||
|---|---|---|---|---|---|---|---|
| Long | Short | Long | Short | ||||
| 2019, Guo [19] | 18,670 | ≥10 | <6 | 9.5% | 1.63 (1.30–2.04) | 1.19 (0.86–1.66) | China |
| 2013, Liu [20] | 54,269 | ≥10 | ≤6 | 4.1% | 2.23 (1.71–2.92) | 1.22 (1.03–1.45) | USA |
| 2018, Ke [21] | 10,657 | >9 | <5 | 4.7% | 2.13 (1.34–3.39) | 1.22 (0.68–2.19) | China |
| 2018, Seixas [13] | 288,888 | ≥9 | <7 | 8.7% | 1.80 | 1.29 | USA |
| 2020, Krittanawong [14] | 32,152 | >9 | <7 | 3.3% | 1.81 (1.37–2.34) | 1.45 (1.23–1.70) | USA |
| 2017, Wang [22] | 39,515 | ≥9 | <6 | 46.8% | 1.35 (1.05–1.73) | 1.24 (0.53–2.93) | China |
| 2014, Fang [23] | 154,599 | ≥9 | ≤6 | 9.0% | 1.80 (1.63–1.99) | 1.20 (1.11–1.29) | USA |
| 2012, Altman [7] | 30,934 | ≥10 | <5 | 3.8% | 1.86 (1.21–2.52) | 2.51 (0.97–4.06) | USA |
| 2018, Hu [24] | 15,269 | >8 | <6 | 13.8% | 1.86 (1.29–2.69) | 1.41 (0.92–2.15) | China |
| 2012, Magee [25] | 218,155 | ≥9 | <6 | 19.7% | 1.50 (1.38–1.62) | 1.54 (1.36–1.75) | Australia |
| 2019, Nuyujukian [26] | 14,536 | ≥8 | ≤6 | 39.3% | 1.36 | 1.43 | USA |
| 2022, Liu [27] | 5065 | >9 | <7 | 19.6% | 2.11 (1.39–3.19) | 1.67 (0.91–3.07) | China |
| 2016, Akinseye [28] | 26,364 | ≥9 | ≤6 | 14% | 1.46 (1.16–1.84) | 1.15 (0.95–1.40) | USA |
| 2020, Hu [29] | 10,516 | >8 | <6 | 18.8% | 1.59 (1.07–2.38) | 1.21 (0.73–2.01) | China |
| 2010, Sabanayagam [30] | 30,397 | ≥9 | ≤5 | 8.8% | 2.22 (1.69–2.91) | 2.01 (1.50–2.70) | USA |
| 2017, Pergola [31] | 5101 | ≥10 | <5 | 2.8% | 7.17 (3.28–15.65) | 2.41 (1.14–5.11) | USA |
| 2021, Li [32] | 4785 | >8 | <7 | 24% | 1.86 (1.08–3.21) | 2.11 (1.30–3.44) | China |
| 2016, Wen [33] | 880 | ≥9 | <7 | 6.6% | 2.00 (1.16–3.46) | 0.94 (0.59–1.49) | China |
| 2022, Wang [34] | 10,442 | ≥8 | <6 | 33.0% | 1.31 (0.86–1.99) | 1.95 (1.19–3.19) | USA |
| 2013, Merikanto [35] | 6258 | ≥9 | ≤6 | 8.0% | 1.7 (0.9–3.2) | 1.9 (1.2–2.9) | Finland |
| 2021, Li [36] | 4334 | >8 | <7 | 9.1% | 1.58 (0.92–2.70) | 1.81 (1.10–2.97) | China |
| 2022, Yang [37] | 37,341 | ≥9 | <6 | 10.8% | 1.11 (0.97–1.27) | 1.26 (1.09–1.46) | China |
| 2018, Kim [38] | 17,601 | ≥9 | ≤6 | 7% | 1.52 (0.93–2.48) | 1.05 (0.79–1.39) | Republic of Korea |
| 2016, Kim [39] | 1470 | ≥9 | ≤5 | 5.6% | 5.00 (2.18–11.47) | 0.67 (0.36–1.24) | Republic of Korea |