Table 2.
Meta-analysis results for the first two examples.
Example | Model | Measure | Effect type |
Estimate | 95% CI |
BoS % (equation (12)) |
(equation (16)) |
|
---|---|---|---|---|---|---|---|---|
Hypertension | Uni | SBP | MD | −10.16 | (−12.06, −8.27) | 2.68 | – | – |
(section 5.1) | Uni | DBP | MD | −4.58 | (−5.59, −3.57) | 1.47 | – | – |
Uni | CVD | HR | 0.78 | (0.69, 0.89) | 0.00 | – | – | |
Uni | Stroke | HR | 0.68 | (0.59, 0.79) | 0.00 | – | – | |
Multi | SBP | MD | −10.22 | (−12.14, −8.30) | 2.73 | 0.9% | −2.4% | |
Multi | DBP | MD | −4.63 | (−5.67, −3.60) | 1.51 | 0.5% | −5.1% | |
Multi | CVD | HR | 0.79 | (0.69, 0.91) | 0.05 | 4.2% | −8.3% | |
Multi | Stroke | HR | 0.73 | (0.61, 0.87) | 0.14 | 20.8% | −57.2% | |
Fibrinogen | Uni | Part | HR | 1.41 | (1.33, 1.49) | 0.10 | – | – |
(section 5.2) | Uni | Full | HR | 1.31 | (1.22, 1.42) | 0.07 | – | – |
Multi | Part | HR | 1.41 | (1.33, 1.50) | 0.11 | 1.9% | −8.4% | |
Multi | Full | HR | 1.31 | (1.25, 1.38) | 0.07 | 53.3% | 53.1% |
‘Uni’ indicates that the results are obtained from univariate meta-analyses and ‘Multi’ indicates that the results are obtained from multivariate meta-analyses. ‘MD’ denotes mean difference and ‘HR’ denotes hazard ratio. Analyses were performed on the mean difference and log hazard ratios scales; is the estimated between-study standard deviation on the mean difference and log hazard ratio scales and the BoS statistics are also on these scales. The estimated between study correlations in the multivariate meta-analysis for example one are (SBP, DBP): 0.79, (SBP, CVD): −0.31 (SBP, Stroke): −0.53 (DBP, CVD): −0.83 (DBP, Stroke): −0.94, (CVD, Stroke): 0.97. The estimated between-study correlation in the multivariate meta-analysis for example two is 1.
SBP:systolic blood pressure; SBP: systolic blood pressure; CVD: cardiovascular disease; Part: partially adjusted effect of fibrinogen level; Full: fully adjusted effect of fibrinogen level.