marginal significancep -value = 0.09
The BPR in the E2-hCG < 1500 pg/ml, 1500 ≤ E2-hCG ≤ 4000 pg/mL, and E2-hCG > 4000 pg/ml groups was 57.20%, 64.26%, and 57.95%, the BPR in 1500 ≤ E2-hCG ≤ 4000 pg/mL group is significantly higher than that in the < 1500 pg/ml group (64.26% vs 57.20%, p -value = 0.001), the BPR in 1500 ≤ E2-hCG ≤ 4000 pg/mL group was higher than that of E2-hCG > 4000 group with marginal significance (64.26% vs 57.95%, p -value = 0.09), the BPR was not statistically different between the other two groups.