Document Classification

Section Type: RESULTS

Text: There was no significant difference in the rate of serum E2 level at Day 28 of every injection below the upper limit of '' estrogen threshold (110 - 146 pmol/L) '' not stimulating ectopic endometrium proliferation among half-dose group, '' draw-back '' group and routine-dose group (99 % vs 100 % and 99. 0 %, P > 0. 05), the percentage of E2 < 37 pmol/L in E2 < 110 pmol/L in half-dose group was significantly lower than that in '' draw-back '' and routine-dose groups after 2-5 (th) injection (69 % vs 79 % and 85 %, P < 0. 01), but there was no significant difference after first half-dose and routine-dose injection (71 % vs 73 %, P > 0. 05).