Table 3

Univariate meta-regression analysis

VariableBeta (β)P value95% CIR2 (%)
Date of data collection0.008<0.0010.005–0.01175.78
Year of publication0.007<0.0010.004–0.00943.36
Age0.008<0.0010.003–0.01226.69
Hypertension0.0040.0990.000–0.008Nil
Methodology−0.0240.4121−0.080–0.033Nil
Overweight/obesity0.0170.1996−0.001–0.00415.14
Gender0.0010.8116−0.002–0.003Nil
Smoking0.0010.9134−0.012–0.010Nil
Diagnostic criteria0.0030.8786−0.038–0.045Nil
Diagnostic method−0.0210.2265−0.055–0.0131.37