Table 4.

Kidney functional data over pregnancy and up to 12 months after delivery

KT 1978–1999KT 2000–2013All casesP-value, before and after 2000
Patients, n68121189
sCr before pregnancy1.05 (0.51–1.8)1.07 (0.6–2.4)1.07 (0.51–2.4)0.993
sCr 20 weeks0.9 (0.5–1.9)
N = 53
0.9 (0.4–2.3)
N = 93
0.9 (0.4–2.3)
N = 146
0.642
sCr 6 months after delivery1.0 (0.4–2.1)
N = 55
1.0 (0.6–2.5)
N = 89
1.0 (0.4–2.5)
N = 144
0.749
sCr 1 year after delivery1.1 (0.4–2.1)
N = 61
1.1 (0.5–2.6)
N = 102
1.1 (0.4–2.6)
N = 163
0.543
eGFR CKD-EPI before pregnancy72 (36–129)71 (25–123)71 (25–129)0.473
eGFR CKD-EPI 20 weeks86 (36–132)
N = 53
80 (27–133)
N = 93
82 (27–133)
N = 146
0.238
eGFR CKD-EPI 6 months after delivery73 (31–142)
N = 55
71 (24–123)
N = 89
71.5 (24–142)
N = 144
0.425
eGFR CKD-EPI 1 year after delivery67 (31–141)
N = 61
66.5 (22–133)
N = 102
67 (22–141)
N = 163
0.997
CKD-EPI stages before pregnancy
 Stage 114/68 (20.6%)26/121 (21.5%)40/189 (21.2%)0.487
 Stage 236/68 (52.9%)52/121 (43.0%)88/189 (46.6%)
 Stage 318/68 (26.5%)42/121 (34.7%)60/189 (31.7%)
 Stages 4–51/121 (0.8%)1/189 (0.5%)
CKD-EPI stages 1 year after delivery
 Stage 17/61 (11.5%)17/102 (16.7%)24/163 (14.7%)0.188
 Stage 236/61 (59.0%)48/102 (47.1%)84/163 (51.5%)
 Stage 318/61 (29.5%)32/102 (31.4%)50/163 (30.7%)
 Stages 4–55/102 (4.9%)5/163 (3.1%)
KT 1978–1999KT 2000–2013All casesP-value, before and after 2000
Patients, n68121189
sCr before pregnancy1.05 (0.51–1.8)1.07 (0.6–2.4)1.07 (0.51–2.4)0.993
sCr 20 weeks0.9 (0.5–1.9)
N = 53
0.9 (0.4–2.3)
N = 93
0.9 (0.4–2.3)
N = 146
0.642
sCr 6 months after delivery1.0 (0.4–2.1)
N = 55
1.0 (0.6–2.5)
N = 89
1.0 (0.4–2.5)
N = 144
0.749
sCr 1 year after delivery1.1 (0.4–2.1)
N = 61
1.1 (0.5–2.6)
N = 102
1.1 (0.4–2.6)
N = 163
0.543
eGFR CKD-EPI before pregnancy72 (36–129)71 (25–123)71 (25–129)0.473
eGFR CKD-EPI 20 weeks86 (36–132)
N = 53
80 (27–133)
N = 93
82 (27–133)
N = 146
0.238
eGFR CKD-EPI 6 months after delivery73 (31–142)
N = 55
71 (24–123)
N = 89
71.5 (24–142)
N = 144
0.425
eGFR CKD-EPI 1 year after delivery67 (31–141)
N = 61
66.5 (22–133)
N = 102
67 (22–141)
N = 163
0.997
CKD-EPI stages before pregnancy
 Stage 114/68 (20.6%)26/121 (21.5%)40/189 (21.2%)0.487
 Stage 236/68 (52.9%)52/121 (43.0%)88/189 (46.6%)
 Stage 318/68 (26.5%)42/121 (34.7%)60/189 (31.7%)
 Stages 4–51/121 (0.8%)1/189 (0.5%)
CKD-EPI stages 1 year after delivery
 Stage 17/61 (11.5%)17/102 (16.7%)24/163 (14.7%)0.188
 Stage 236/61 (59.0%)48/102 (47.1%)84/163 (51.5%)
 Stage 318/61 (29.5%)32/102 (31.4%)50/163 (30.7%)
 Stages 4–55/102 (4.9%)5/163 (3.1%)

Data expressed as median (minimum-maximum); sCr: serum creatinine; eGFR: estimated glomerular filtration rate; CKD-EPI: Chronic Kidney Disease Epidemiology Collaboration; KT: kidney transplantation.

In 1978–99: information on outcomes available in 45 cases. Dialysis was restarted by 25 women after delivery (none within the first year); 6 mothers died (none in the first year after delivery).

In 2000–13: dialysis was restarted by 9 women after delivery (one only within the first year); 2 mothers died (1 after dialysis start, 2 years after delivery, and one 3 years after delivery).

Table 4.

Kidney functional data over pregnancy and up to 12 months after delivery

KT 1978–1999KT 2000–2013All casesP-value, before and after 2000
Patients, n68121189
sCr before pregnancy1.05 (0.51–1.8)1.07 (0.6–2.4)1.07 (0.51–2.4)0.993
sCr 20 weeks0.9 (0.5–1.9)
N = 53
0.9 (0.4–2.3)
N = 93
0.9 (0.4–2.3)
N = 146
0.642
sCr 6 months after delivery1.0 (0.4–2.1)
N = 55
1.0 (0.6–2.5)
N = 89
1.0 (0.4–2.5)
N = 144
0.749
sCr 1 year after delivery1.1 (0.4–2.1)
N = 61
1.1 (0.5–2.6)
N = 102
1.1 (0.4–2.6)
N = 163
0.543
eGFR CKD-EPI before pregnancy72 (36–129)71 (25–123)71 (25–129)0.473
eGFR CKD-EPI 20 weeks86 (36–132)
N = 53
80 (27–133)
N = 93
82 (27–133)
N = 146
0.238
eGFR CKD-EPI 6 months after delivery73 (31–142)
N = 55
71 (24–123)
N = 89
71.5 (24–142)
N = 144
0.425
eGFR CKD-EPI 1 year after delivery67 (31–141)
N = 61
66.5 (22–133)
N = 102
67 (22–141)
N = 163
0.997
CKD-EPI stages before pregnancy
 Stage 114/68 (20.6%)26/121 (21.5%)40/189 (21.2%)0.487
 Stage 236/68 (52.9%)52/121 (43.0%)88/189 (46.6%)
 Stage 318/68 (26.5%)42/121 (34.7%)60/189 (31.7%)
 Stages 4–51/121 (0.8%)1/189 (0.5%)
CKD-EPI stages 1 year after delivery
 Stage 17/61 (11.5%)17/102 (16.7%)24/163 (14.7%)0.188
 Stage 236/61 (59.0%)48/102 (47.1%)84/163 (51.5%)
 Stage 318/61 (29.5%)32/102 (31.4%)50/163 (30.7%)
 Stages 4–55/102 (4.9%)5/163 (3.1%)
KT 1978–1999KT 2000–2013All casesP-value, before and after 2000
Patients, n68121189
sCr before pregnancy1.05 (0.51–1.8)1.07 (0.6–2.4)1.07 (0.51–2.4)0.993
sCr 20 weeks0.9 (0.5–1.9)
N = 53
0.9 (0.4–2.3)
N = 93
0.9 (0.4–2.3)
N = 146
0.642
sCr 6 months after delivery1.0 (0.4–2.1)
N = 55
1.0 (0.6–2.5)
N = 89
1.0 (0.4–2.5)
N = 144
0.749
sCr 1 year after delivery1.1 (0.4–2.1)
N = 61
1.1 (0.5–2.6)
N = 102
1.1 (0.4–2.6)
N = 163
0.543
eGFR CKD-EPI before pregnancy72 (36–129)71 (25–123)71 (25–129)0.473
eGFR CKD-EPI 20 weeks86 (36–132)
N = 53
80 (27–133)
N = 93
82 (27–133)
N = 146
0.238
eGFR CKD-EPI 6 months after delivery73 (31–142)
N = 55
71 (24–123)
N = 89
71.5 (24–142)
N = 144
0.425
eGFR CKD-EPI 1 year after delivery67 (31–141)
N = 61
66.5 (22–133)
N = 102
67 (22–141)
N = 163
0.997
CKD-EPI stages before pregnancy
 Stage 114/68 (20.6%)26/121 (21.5%)40/189 (21.2%)0.487
 Stage 236/68 (52.9%)52/121 (43.0%)88/189 (46.6%)
 Stage 318/68 (26.5%)42/121 (34.7%)60/189 (31.7%)
 Stages 4–51/121 (0.8%)1/189 (0.5%)
CKD-EPI stages 1 year after delivery
 Stage 17/61 (11.5%)17/102 (16.7%)24/163 (14.7%)0.188
 Stage 236/61 (59.0%)48/102 (47.1%)84/163 (51.5%)
 Stage 318/61 (29.5%)32/102 (31.4%)50/163 (30.7%)
 Stages 4–55/102 (4.9%)5/163 (3.1%)

Data expressed as median (minimum-maximum); sCr: serum creatinine; eGFR: estimated glomerular filtration rate; CKD-EPI: Chronic Kidney Disease Epidemiology Collaboration; KT: kidney transplantation.

In 1978–99: information on outcomes available in 45 cases. Dialysis was restarted by 25 women after delivery (none within the first year); 6 mothers died (none in the first year after delivery).

In 2000–13: dialysis was restarted by 9 women after delivery (one only within the first year); 2 mothers died (1 after dialysis start, 2 years after delivery, and one 3 years after delivery).

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