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Describing the status of reproductive ageing simply and precisely: A reproductive ageing score based on three questions and validated with hormone levels

Fig 2

Approximated function for menstrual regularity.

Data points: Inverse proportion of women with regular menstruation for every response to the number of periods during the last year, observed in the RHINE dataset 1-P(period); Line: biquadratic exponential function μA with best fit to observed values 1-P(period).

Fig 2

doi: https://doi.org/10.1371/journal.pone.0235478.g002