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Table 2 Definition of protocol deviations

From: Pneumococcal conjugate vaccination schedules in infants—acquisition, immunogenicity, and pneumococcal conjugate and yellow fever vaccine co-administration study: statistical analysis plan

Reason for protocol deviation

Enrolment of ineligible participant

See Sect. 4.2 Eligibility

Non-adherence to vaccine schedule

 Incorrect dose given

1st dose—age < 6 weeks

Standard schedule—received > 3 doses

Standard schedule—3rd dose age > 22 weeks

Alternative schedule—2nd dose age < 40 weeks

Alternative schedule—received > 2 doses

 Withdrawn, received alternative schedule

Withdrawn—2nd dose age ≥ 36 weeks

Non-adherence to endpoint timeline

 Blood

Collection > 35 days from specified date

 NP specimen

 < 14 days between consecutive specimens

Collection at 16 or 17 months of age (standard schedule)

Collection > 6 months after booster administration and < 18 months of age (alternative schedule)

18-month specimen collection > 20 months of age

28-month specimen collection > 30 months of age