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Table 3 Completeness of data collection for planned outcomes in a main trial

From: Standard care informed by the result of a placental growth factor blood test versus standard care alone in women with reduced fetal movement at or after 36+0 weeks’ gestation: a pilot randomised controlled trial

OutcomeControl (n = 107)Intervention (n = 109)Total (n = 216)
Completeness of each component of proposed primary outcome
 Stillbirth or death before discharge107 (100%)109 (100%)216 (100%)
 5-min Apgar score107 (100%)109 (100%)216 (100%)
 Umbilical artery pH62 (58%)72 (66%)134 (62%)
 Length of stay in neonatal unit107 (100%)109 (100%)216 (100%)
Number of primary outcome components with complete data for each participant
 00 (–)0 (–)0 (–)
 10 (–)0 (–)0 (–)
 20 (–)0 (–)0 (–)
 345 (42%)37 (34%)82 (38%)
 462 (58%)72 (66%)134 (62%)
Participants with assessable composite primary outcome1107 (100%)109 (100%)216 (100%)
  1. 1Primary outcome is assessable if all components are complete, or if any component is positive regardless of missing data, or if umbilical artery pH is missing and all other components are negative