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. 2022 Jun 15;13:877471. doi: 10.3389/fendo.2022.877471

Table 5.

Clinical outcome of primary infertility and secondary infertility half-ICSI patients with fresh embryo-transfer cycles.

Primary infertility (608 cycles) Secondary infertility (276 cycles)
Characteristic IVF ICSI IVF+ICSI IVF ICSI IVF+ICSI
Fresh embryo transfer cycle: no. (%) 244 (40.1) 201 (33.1) 163 (26.8) 119 (43.1) 73 (26.4) 84 (30.4)
No. fresh embryo transferred per cycle (mean ± STD) 2.0 ± 0.3 1.9 ± 0.4 2.1 ± 0.3 2.0 ± 0.2 1.9 ± 0.5 2.2 ± 0.4
Age (y) (mean ± STD) 32.0 ± 3.7 31.9 ± 4.0 32.7 ± 4.5 33.6 ± 3.8 33.7 ± 4.0 33.8 ± 4.5
Live birth: no. (%) 107 (43.9) 86 (42.8) 66 (40.5) 57 (47.9) 28 (38.4) 34 (40.5)
Singleton live birth per woman 75 (30.7%) 65 (32.3%) 48 (29.4%) 40 (33.6%) 21 (28.8%) 23 (27.4%)
Twin live birth per woman 32 (13.2%) 21 (10.5%) 18 (11.1%) 17 (14.3%) 7 (9.6%) 11 (13.1%)
Biochemical pregnancy: no. (%) 155 (63.5) 111 (55.2) 97 (59.5) 78 (65.5) 36 (49.3)a 40 (47.6)b
Clinical pregnancy: no. (%) 135 (55.3) 100 (49.8) 81 (49.7) 65 (54.6) 32 (43.8) 39 (46.5)
Preterm birth: [no./total no. (%)] 6/107 (5.6) 5/86 (5.8) 3/66 (4.5) 5/57 (8.8) 4/28 (14.3) 3/34 (8.8)
Neonatal abnormalities: [no./total no. (%)] 5/139 (3.6) 3/107 (2.8) 2/84 (2.4) 0/74 (0.0) 1/35 (2.9) 0/45 (0.0)

Values are presented as number (%).

aP<0.05 ICSI compared to IVF groups.

bP<0.05 IVF+ICSI compared to IVF groups.