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. 2023 May 9;90(2):182–193. doi: 10.1177/00243639231167235

Table 6.

Characteristics of Unintended Pregnancies Included in Survival Analysis.

User Infant DOB or chart start date Month of preg. when chart started or DOB Cycle of preg. when chart started or if DOB provided Act/s of I (related to the EDO or second peak day, e.g., P+/−) Comments
1 May-2015 (inf. DOB) 15 5 P −4 or P + 3 I's on CD 8, 9, and 10; FW started CD 7; Pregnancy occurred 15 months pp
2 Feb-2016 4 4 P + 5 FW started CD 7, I's on CD 21
3 Nov-2015 15 3 P + 3 No menses were recorded
4 Jul-2016 2 1 P + 6 Mense score 10 over 5 days in pregnancy chart. FW CD6 – CD24. No I's during FW

Note: Detailed description for each pregnancy and reason for classification. Abbreviations = Intercourse (I), fertile window (FW), estimated day of ovulation (EDO), cycle day (CD), and the peak day of fertility based on the last day of peak (P), date of birth (DOB).