Table 4

Effect of phone calls and supervision visits on data quality, stratified by type of site

Error per Total Reports* (EPTR)

Variation EPTR



Type Site

Group

Pre Intervention

%

Intervention

%

Δ(CI)

p-value






Clinic

Phone

0.99

1.06

↑0.07 (↓0.9 – ↑1.0)

0.888

Visits

7.10

2.00

↓5.10 (↓8.7 - ↓1.4)

0.007

Control

1.94

1.02

↓0.92 (↓3.4 - ↑1.5)

0.470


Ship

Phone

8.16

6.69

↓1.47 (↓4.6 - ↑1.7)

0.361

Visits

7.32

6.67

↓0.65 (↓2.4 - ↑1.1)

0.455

Control

8.49

7.59

↓0.90 (↓3.6 - ↑1.8)

0.519


(*) Error per total reports (EPTR) = Number of errors detected in reports divided by the total number of reports, multiplied by 100

Huaman et al. BMC Medical Informatics and Decision Making 2009 9:16   doi:10.1186/1472-6947-9-16

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