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Table 4 Depression mean prevalence according to the continent, time, and setting, considering only assessment with psychometric tools

From: Depression in adults with sickle cell disease: a systematic review of the methodological issues in assessing prevalence of depression

  npatients Mean (%) Minimum (%) Maximum (%)
Continent     
The USA (nstudy = 16) 2138 34.33 20.63 61.04
South America (nstudy = 5) 694 19.74 13.29 30.00
Europe (nstudy = 1) 89 49.44
Africa/Middle East (nstudy = 8) 1208 46.61 0.00 71.84
Time     
1999–2000 (nstudy = 2) 483 41.82 25.58 43.41
2001–2010 (nstudy = 10) 1653 36.30 21.66 59.26
2011–2020 (nstudy = 18) 1993 33.92 0.00 71.84
Setting     
Inpatient and VOC (nstudy = 1) 10 50.00
Outpatient (nstudy = 21) 2706 39.84 0.00 71.84
Extracted from a cohort (nstudy = 7) 1290 26.90 20.63 38.61
  1. VOC vaso-occlusive crisis