Table 2. Characteristics of fertile (controls) and infertile women after reproductive surgery before and after PS matching. Table 2. Characteristics of fertile (controls) and infertile women after reproductive surgery before and after PS matching. Table 2. Characteristics of fertile (controls) and infertile women after reproductive surgery before and after PS matching. Table 2. Characteristics of fertile (controls) and infertile women after reproductive surgery before and after PS matching. Table 2. Characteristics of fertile (controls) and infertile women after reproductive surgery before and after PS matching. Table 2. Characteristics of fertile (controls) and infertile women after reproductive surgery before and after PS matching. Table 2. Characteristics of fertile (controls) and infertile women after reproductive surgery before and after PS matching.
Variable All women (n=100 765) All women (n=100 765) All women (n=100 765) PS matched sample (n=1516) PS matched sample (n=1516) PS matched sample (n=1516)
Fertile women Infertile women Std. Diff. Fertile women Infertile women Std. Diff.
n=100 007 n=758* n=758 n=758
Maternal age at delivery (years) 30.2 ± 4.8 32.4 ± 4.2 0.537 32.4 ± 4.2 -0.017
BMI (kg/m2)
BMI < 18.5
4712 (4.7)
44 (5.8)
0.047
45 (5.9)
44 (5.8)
-0.006
BMI 18.5-24.99
66 205 (66.3)
501 (66.1)
-0.004
504 (66.5)
501 (66.1)
-0.008
BMI 25 – 29.99
19 169 (19.2)
131 (17.3)
-0.050
129 (17.0)
131 (17.3)
0.007
BMI > 30
9810 (9.8)
82 (10.8)
0.032
80 (10.6)
82 (10.8)
0.009
Nulliparous 48 312 (48.3) 646 (85.2) 1.040 644 (85.0) 646 (85.2) 0.007
Smoking 9486 (9.5) 57 (7.5) -0.074 50 (6.6) 57 (7.5) 0.035
Chronic diseases 10 953 (11.0) 135 (17.8) 0.179 131 (17.3) 135 (17.8) 0.014
Previous miscarriage 18 155 (18.2) 184 (24.3) 0.142 181 (23.9) 184 (24.3) 0.009
Previous conization 3752 (3.8) 33 (4.4) 0.029 28 (3.7) 33 (4.4) 0.032
Uterine anomaly 4668 (4.7) 348 (45.9) 0.827 347 (45.8) 348 (45.9) 0.003
Previous preterm delivery 3081 (3.1) 13 (1.7) -0.105 16 (2.1) 13 (1.7) -0.031
Multiple pregnancy 1773 (1.8) 58 (7.7) 0.221 56 (7.4) 58 (7.7) 0.010
Results are presented as a mean ± SD or No. (%) as appropriate. *3 women droped out from propensity score calculation due to lack of all variables. Legend: BMI – body mass index Results are presented as a mean ± SD or No. (%) as appropriate. *3 women droped out from propensity score calculation due to lack of all variables. Legend: BMI – body mass index Results are presented as a mean ± SD or No. (%) as appropriate. *3 women droped out from propensity score calculation due to lack of all variables. Legend: BMI – body mass index Results are presented as a mean ± SD or No. (%) as appropriate. *3 women droped out from propensity score calculation due to lack of all variables. Legend: BMI – body mass index Results are presented as a mean ± SD or No. (%) as appropriate. *3 women droped out from propensity score calculation due to lack of all variables. Legend: BMI – body mass index Results are presented as a mean ± SD or No. (%) as appropriate. *3 women droped out from propensity score calculation due to lack of all variables. Legend: BMI – body mass index Results are presented as a mean ± SD or No. (%) as appropriate. *3 women droped out from propensity score calculation due to lack of all variables. Legend: BMI – body mass index