Skip to main content
. 2018 Jun 22;47(6):2005–2014. doi: 10.1093/ije/dyy120

Table 4.

Results for 49 negative controls in Anticoagulants study and 29 in NSAIDs study

Anticoagulants
NSAIDs
PS method Cov RMSE Mean SD Cov RMSE Mean SD
Unadjusted 0.53 0.325 −0.172 0.216 0.83 0.370 −0.061 0.314
L1-Reg-All 0.88 0.303 0.023 0.108 0.83 0.367 −0.023 0.229
L1-Reg-OHDSI 0.90 0.276 −0.020 0.061 0.97 0.319 −0.087 0.161
L1-Reg-HDPS 0.86 0.275 −0.026 0.089 0.83 0.387 −0.115 0.228
bias-hdPSa 0.86 0.258 −0.037 0.065 0.88 0.347 −0.065 0.135
bias-hdPS-Reg 0.82 0.292 −0.036 0.094 0.83 0.372 −0.039 0.244
exp-hdPSb 0.80 0.268 −0.037 0.113 N/A N/A N/A N/A
exp-hdPS-Reg 0.80 0.284 −0.037 0.096 0.86 0.434 −0.154 0.320

Mean and SD are of the empirical null Gaussian distribution fit to the log hazard ratio estimates.

Cov, coverage of the null effect; RMSE, root mean squared error of log hazard ratio estimates from 0; SD, standard deviation.

a

bias-hdPS fails to converge on 12 of 29 outcomes in NSAIDs study.

b

exp-hdPS fails to converge on all 29 outcomes in NSAIDs study.