Table 1 Characteristics of patients in the experimental and control groups for each outcome.

From: Risk factors of adverse pregnancy outcomes in patients with immunoglobulin A nephropathy

 

Hypertensive disorders of pregnancy (needed intravenous nicardipine)

Preterm delivery (delivered before 37 weeks of pregnancy)

Case (n = 34)

Control (n = 263)

Case (n = 56)

Control (n = 237)

Age

 Median (IQR)

35 (31, 37)

33 (29, 36)

34 (30, 37)

33 (29, 36)

  ≤ 19 years

0 (0%)

4 (1.5%)

0 (0%)

4 (1.7%)

 20–34 years

16 (47.1%)

157 (59.7%)

29 (51.8%)

141 (59.5%)

  ≥ 35 years

18 (52.9%)

102 (38.8%)

27 (48.2%)

92 (38.8%)

Smoking history

 Never-smoker

28 (82.4%)

220 (83.7%)

45 (80.4%)

200 (84.4%)

 Current-smoker or ex-smoker

3 (8.8%)

27 (10.3%)

4 (7.1%)

26 (11.0%)

 Missing

3 (8.8%)

16 (6.1%)

7 (12.5%)

11 (4.6%)

 Diabetes mellitus (pre-existing and gestational)

0 (0.0%)

12 (4.6%)

3 (5.4%)

9 (3.8%)

 Medications before conception

0 (0.0%)

2 (0.8%)

0 (0.0%)

2 (0.8%)

 Medications during pregnancy

0 (0.0%)

10 (3.8%)

3 (5.4%)

7 (3.0%)

 Chorioamnionitis

5 (14.7%)

15 (5.7%)

10 (17.9%)

10 (4.2%)

 Antihypertensive medications (all)

9 (26.5%)

35 (13.3%)

15 (26.8%)

26 (11.0%)

 Only RASi

4 (11.8%)

28 (10.6%)

9 (16.1%)

21 (8.9%)

 Medications other than RASi

5 (14.7%)

7 (2.7%)

6 (10.7%)

5 (2.1%)

 Glucocorticoid therapy (all)

4 (11.8%)

29 (11.0%)

6 (10.7%)

27 (11.4%)

 DIV

1 (2.9%)

7 (2.7%)

1 (1.8%)

7 (3.0%)

 PO

4 (11.8%)

28 (10.6%)

6 (10.7%)

26 (11.0%)

  1. IQR interquartile range, RASi renin–angiotensin–aldosterone system inhibitors, DIV drip in vein, PO per os. Continuous variables are presented as median with interquartile range. Categorical variables are presented as numbers and percentages. Definitions of each variable are mentioned in the main text.