Skip to main content

Table 1 Characteristics of studies included in quantitative synthesis

From: Cognition in chronic kidney disease: a systematic review and meta-analysis

Characteristic Meta-analysis comparison eGFR cut point in mL/min/1.73 m2, studies (participants)
< 15 < 30 < 45 < 60 Overall
Total 6 (5482) 13 (18,041) 16 (37,259) 43 (51,418) 44 (51,575)
Region
Americas 3 (5327) 5 (8356) 8 (17,921) 21 (27,976) 22 (28,133)
Asia & Pacific 1 (60) 4 (1728) 4 (5787) 11 (9246) 11 (9246)
Europe & Russia 2 (95) 3 (7887) 4 (13,551) 8 (13,848) 8 (13,848)
Africa 1 (70) 3 (348) 3 (348)
Study design
Cross-sectional 6 (5482) 8 (6434) 9 (17,486) 33 (26,915) 33 (27,072)
Cohort 5 (11,607) 7 (19,773) 10 (24,503) 10 (24,503)
Participantsa
Mean age (Range), years      67.1 (18–89)
Women      52.2%
Basis of between-groups comparisons
eGFR/proteinuria 3 11 14 31 32
CKD vs. Healthy 4 4 2 17 17
Within-CKD 1 1
CKD vs. other conditions 1 1 1
  1. aAge and sex data are taken from whole study descriptive statistics
  2. CKD chronic kidney disease, eGFR estimated glomerular filtration rate