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Table 1 Baseline characteristics of participants by quartiles of TyG‑BMI index (N = 966)

From: The association between triglyceride glucose-body Mass Index and in vitro fertilization outcomes in women with polycystic ovary syndrome: a cohort study

Characteristics

Quantile 1

Quantile 2

Quantile 3

Quantile 4

P-value

N

242

241

241

242

 

Age(year)

28.03 ± 2.98

28.38 ± 3.23

28.30 ± 3.25

28.53 ± 3.20

0.375

Primary infertility

    

0.317

No

70 (28.93%)

77 (31.95%)

62 (25.73%)

61 (25.21%)

 

Yes

172 (71.07%)

164 (68.05%)

179 (74.27%)

181 (74.79%)

 

Smoking history, n (%)

    

0.111

No

238 (98.35%)

241 (100.00%)

240 (99.59%)

241 (99.59%)

 

Yes

4 (1.65%)

0 (0.00%)

1 (0.41%)

1 (0.41%)

 

Duration of infertility(year)

2.00 (2.00–3.00)

3.00 (2.00–4.00)

3.00 (2.00–4.00)

3.00 (2.00–5.00)

0.615

BMI (kg/m2)

    

< 0.001

< 18.5

38 (15.70%)

0 (0.00%)

0 (0.00%)

0 (0.00%)

 

≥ 18.5, < 25

204 (84.30%)

230 (95.44%)

109 (45.23%)

4 (1.65%)

 

≥ 25, < 30

0 (0.00%)

11 (4.56%)

130 (53.94%)

141 (58.26%)

 

≥ 30

0 (0.00%)

0 (0.00%)

2 (0.83%)

97 (40.08%)

 

Basal FSH(IU/L)

6.98 ± 1.60

6.64 ± 1.73

6.43 ± 1.45

6.50 ± 2.93

0.016

Basal LH(IU/L)

7.29 ± 3.23

7.97 ± 3.08

7.10 ± 3.95

6.87 ± 3.91

0.243

Basal E2 (pg/mL)

44.00 (32.00-61.40)

45.00(33.00–58.00)

44.00(33.00–57.00)

42.00 (30.00–56.00)

0.531

Basla T (ng/dl)

0.54 (0.41–0.67)

0.55 (0.43–0.70)

0.57 (0.43–0.73)

0.59 (0.44–0.75)

0.981

AMH (ng/ml)

12.32 ± 5.33

11.54 ± 5.34

12.22 ± 5.40

10.34 ± 5.51

< 0.001

AFC

16.41 ± 5.14

16.30 ± 4.76

15.10 ± 4.83

14.12 ± 4.79

< 0.001

Starting dose of Gn (IU)

172.35 ± 28.65

180.39 ± 30.08

191.90 ± 32.86

213.34 ± 38.46

< 0.001

Total Gn dose (IU)

1479.62 ± 333.40

1643.59 ± 428.46

1900.37 ± 663.03

2345.38 ± 723.20

< 0.001

Duration of Gn (day)

8.69 ± 1.20

8.95 ± 1.41

9.32 ± 1.88

10.02 ± 2.03

< 0.001

Total GnRH-ant(IU)

1.12 (1.00-1.50)

1.25 (1.00-1.50)

1.00 (0.75–1.50)

1.12 (0.75–1.59)

0.139

Duration of GnRH-ant (day)

5.07 ± 1.85

5.12 ± 1.97

4.89 ± 1.85

5.19 ± 1.96)

0.341

Endometrial thickness on triggering day (mm)

9.67 ± 1.61

9.76 ± 1.54

9.88 ± 1.47

9.64 ± 1.56

0.241

E2 on triggering day (pg/ml)

7061.50 (5006.50-10079.00)

6566.00 (4870.00-9161.00)

5935.00 (4296.00-9087.00)

4856.00 (3433.50-7212.50)

< 0.001

P on triggering day

(ng/ml)

1.47 (1.04–2.02)

1.36 (0.99–1.80)

1.30 (0.98–1.72)

1.14 (0.81–1.57)

< 0.001

LH on triggering day (IU/L)

2.38 (1.49–3.52)

2.81 (1.64–4.30)

2.62 (1.71–4.31)

3.03 (1.93–5.19)

0.020

  1. Data are expressed as median (interquartile range) for non-normally distributed continuous variables
  2. Data are expressed as mean + SD for normally distributed continuous variables
  3. Categorical variables were expressed in frequency or as a percentage
  4. Abbreviations: TyG-BMI index, triglyceride glucose-body mass index
  5. BMI, body mass index; FSH, follicle-stimulating hormone; LH, luteinizing hormone; T, testosterone; AMH, anti-müllerian hormone; P, progesterone; AFC, antral follicle count; Gn, gonadotropin, GnRH-ant, gonadotropin releasing hormone antagonist, HCG, human chorionic gonadotropin