On 2016 Jun 17, Luis Quadros commented:

Conflicting conclusions.

In abstract: "Bleeding disturbances, the most frequent reason for method discontinuation, were significantly more common in the ENG group [16.7 (95% CI 14.4-19.3)] than in the LNG group [12.5 (95% CI 10.5-14.9)] (P 0.019)."

(A P value can be < 0.05 with overlapping 95% Confidence Intervals.)

In the paper results it is written: "The frequency of symptoms and signs reported in the course of the study by ENG- or LNG-implant users is shown in Table II together with diagnoses of PID. Apart from more reports from ENG-implant users about amenorrhoea, therewere no significant differences recorded between the two implant groups."

And in discussion: "In conclusion, this RCT showed that the ENGand LNG implants have the same contraceptive effectiveness and similar reasons for implant removal for all combined medical reasons in the 3 years after insertion, continuation rates for the two implants were similar up to the middle of the third year of use and had, during this time period, higher continuation rates than the TCu380A IUD."

On 2016 Jun 17, Luis Quadros commented:

Conflicting conclusions.

In abstract: "Bleeding disturbances, the most frequent reason for method discontinuation, were significantly more common in the ENG group [16.7 (95% CI 14.4-19.3)] than in the LNG group [12.5 (95% CI 10.5-14.9)] (P 0.019)."

(A P value can be < 0.05 with overlapping 95% Confidence Intervals.)

In the paper results it is written: "The frequency of symptoms and signs reported in the course of the study by ENG- or LNG-implant users is shown in Table II together with diagnoses of PID. Apart from more reports from ENG-implant users about amenorrhoea, therewere no significant differences recorded between the two implant groups."

And in discussion: "In conclusion, this RCT showed that the ENGand LNG implants have the same contraceptive effectiveness and similar reasons for implant removal for all combined medical reasons in the 3 years after insertion, continuation rates for the two implants were similar up to the middle of the third year of use and had, during this time period, higher continuation rates than the TCu380A IUD."