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Sex x mating status interaction, i.e. how much the log hazard ratio of virgin vs. mated flies is higher in males than in females; Cohort 1 (winter 2017, commercial Jazz-Mix food). 'interaction estimate' of Table 1: Cox proportional hazards model fitted by the authors within the line and cohort, each fly as an independent unit (survival ~ sex * mating status; references female and mated). Both sexes in one model, so sex is NA. Not reproduced by refitting the model on Table S3 (differences up to 0.3), probably because the authors used another version of the Cohort 1 data. [No unit]