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. 2011 May 23;11:114. doi: 10.1186/1472-6963-11-114

Table 2.

Prevalence of missing information in surgical outpatient appointments

Organisation Total number of patients
in the sample
Records unavailable
(percentage of all patients)
Confidence intervals Number of patients with missing information
(percentage of all patients)
Confidence intervals
A 411 1 (0.2%) 0 to 0.7% 18 (4%) 2.4% to 6.4%

E 423 3 (0.7%) 0 to 1.5% 113 (27%) 22.5% to 31%

G 327 14 (4.3%) 2.1% to 6.5% 44 (13%) 9.8% to 17.1%

TOTAL 1161 18 (1.5%) 0.8% to 2.3% 175 (15%) 13% to 17.1%