Skip to main content

Table 2 Sensitivity analysis of the pooled estimates

From: Effectiveness of training interventions to improve quality of medical certification of cause of death: systematic review and meta-analysis

  Risk difference (95% CI) with fixed effect assumptions Risk difference (95% CI) with random effect assumptions
All entered studies
 Improper sequence, I2 = 96% 0.11 (0.09 to 0.13)* 0.14 (0.05 to 0.24)*
 Presence of abbreviations, I2 = 93% 0.09 (0.08 to 0.11)* 0.14 (0.07 to 0.20)*
 No disease-time interval, I2 = 95% 0.27 (0.24 to 0.29)* 0.28 (0.18 to 0.38)*
 Multiple causes in one line, I2 = 75% 0.13 (0.11 to 0.15)* 0.14 (0.10 to 0.17)*
 Ill-defined UCOD, I2 = 97% 0.06 (0.04 to 0.08)* 0.10 (− 0.03 to 0.22)
After excluding the outliers
 Improper sequence, I2 = 64% 0.18 (0.15 to 0.20)* 0.18 (0.14 to 0.23)*
 Presence of abbreviations, I2 = 21% 0.16 (0.13 to 0.18)* 0.16 (0.13 to 0.19)*
 No disease-time interval, I2 = 0% 0.33 (0.30 to 0.36)* 0.33 (0.30 to 0.36)*
 Multiple causes in one line, I2 = 0% 0.15 (0.13 to 0.17)* 0.15 (0.13 to 0.17)*
 Ill-defined UCOD, I2 = 70% 0.15 (0.12 to 0.17)* 0.15 (0.10 to 0.20)*
  1. *Statistically significant