Table 5 Pain and period tracking odds ratios for low extreme end of the proportion range.

From: Characterizing physiological and symptomatic variation in menstrual cycles using self-tracked mobile-health data

Category

Symptom

Consistently highly variable group’s likelihood for λs < 0.05 (95% CI)

Consistently not highly variable group’s likelihood for λs < 0.05 (95% CI)

Odds ratio (95% CI) for λs < 0.05

Period flow

Heavy

0.170 (0.169,0.170)

0.098 (0.096,0.100)

1.734 (1.703,1.766)

Period flow

Spotting

0.314 (0.313,0.315)

0.239 (0.237,0.241)

1.314 (1.300,1.328)

Type of pain experienced

Headache

0.326 (0.325,0.327)

0.269 (0.266,0.272)

1.212 (1.199,1.225)

Type of pain experienced

Tender breasts

0.366 (0.365,0.367)

0.320 (0.317,0.322)

1.145 (1.134,1.156)

  1. Likelihood of low λs per group, with the associated odds ratio (and 95% confidence intervals). The probability of not tracking ‘heavy period’ for users in the consistently highly variable group is 0.17 and 0.098 in the other, with an odds ratio of 1.734: the consistently highly variable group is more likely not to track ‘heavy period’.
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