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. 2016 Apr;22(4):711–715. doi: 10.3201/eid2204.151459

Table 2. Postintervention reporting of immediately notifiable cases by study group under the intention-to-treat and per-protocol analysis*.

Type of analysis Control
Intervention
% Difference (95% CI)
Total Cases notified, no. (%) Total Cases notified, no. (%)
Intention to treat 39 1 (2.6) 130 25 (19.2) +16.7 (2.71–25.07)
Per protocol 21 1 (4.8) 88 24 (27.3) +22.5 (−0.32 to 34.13)

*Intention-to-treat analysis indicates analysis of treatment groups as they were randomized, regardless of the intervention exposure; per-protocol analysis indicates restricted analysis of groups that completed the entire study according to the trial protocol.