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. 2023 Aug 17;14:1198779. doi: 10.3389/fendo.2023.1198779

Table 2.

Outcomes of ultra-long, long, antagonist, and short protocols in fresh ET cycles.

Ultra-long protocol Long protocol Antagonist protocol Short protocol Padjust
No. of cycles 108 56 34 59
Total dosage of Gn, IU 2775.00 (2250.00,3993.75)acf 1800.00 (1500.00,2325.00)c 2175.00 (1656.25,2728.12)f 1975.00 (1425.00,2700.00)a <0.001
Duration of Gn stimulation, days 11.00 (10.00,12.25)acf 9.00 (9.00,11.00)c 9.00 (8.00,10.00)f 9.00 (7.50,10.00)a <0.001
LH on HCG trigger day, IU/L 1.04 (0.56,1.59)acf 2.30 (1.43,3.05)bc 2.51 (1.80,5.54)df 5.24 (3.80,7.04)abd <0.001
E2 on HCG trigger day, pg/ml 2061.50 (1407.75,2884.25) 2650.50 (1708.00,3468.25)be 1653.50 (1081.00,2172.25)e 1619.00 (1294.50,2575.50)b <0.001
P on HCG trigger day, ng/ml 0.66 (0.46,0.84) 0.58 (0.44,0.94) 0.46 (0.35,0.80) 0.65 (0.39,0.81) 0.549
Endometrial thickness on HCG trigger day, cm 1.10 (0.90,1.20)a 1.10 (0.90,1.25)b 1.00 (0.80,1.10) 0.90 (0.80,1.10)ab 0.002
No. of oocytes retrieved 7.00 (4.75,12.00)a 10.00 (6.00,12.00)b 6.00 (3.00,9.75) 4.00 (3.00,8.00)ab <0.001
No. of 2PN zygotes retrieved 5.00 (3.00,7.25)a 6.00 (4.00,9.00)b 4.00 (2.25,6.50) 3.00 (2.00,5.00)ab <0.001
No. of high-quality embryos retrieved on Day 3 2.00 (1.00,4.00)c 4.00 (2.00,6.00)bc 2.00 (2.00,4.00) 2.00 (1.00,3.00)b <0.001
Pregnancy outcomes, %(n/N)
IR 49.7 (85/171)a 52.1 (49/94)b 33.3 (18/54) 28.2 (24/85)ab 0.001
BPR 10.2 (11/108) 10.7 (6/56) 11.8 (4/34) 8.5 (5/59) 0.960
EPR 0.01 (1/108)
CPR 57.4 (62/108)a 64.3 (36/56)b 38.2 (13/34) 35.6 (21/59)ab 0.004
MR 30.6 (19/62) 25.0 (9/36) 30.8 (4/13) 42.9 (9/21) 0.575
Early MR 16.1 (10/62) 22.2 (8/36) 23.1 (3/13) 38.1 (8/21) 0.230g
Late MR 14.5 (9/62) 2.8 (1/36) 7.7 (1/13) 4.8 (1/21) 0.241g
LBR 39.8 (43/108) 48.2 (27/56)b 26.5 (9/34) 20.3 (12/59)b 0.007

Data were presented as median (25th-75th percentile) for non-normality distribution variables. Gn, gonadotropin; LH, luteinizing hormone; E2, estradiol; P, progesterone; HCG, human

chorionic gonadotropin IR, implantation rate; BPR, biochemical pregnancy rate; EPR, ectopic pregnancy rate; CPR, clinical pregnancy rate; MR: miscarriage rate; LBR, live birth rate.

aultra-long vs short; blong vs short; cultra-long vs long; dantagonist vs short; elong vs antagonist; fultra-long vs antagonist; gFisher’s exact test.