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Table 1 Demographic data of the unmatched samples

From: Maternal disease factors associated with neonatal jaundice: a case–control study

Characteristics

Study A (78,319 cases)

Study B (74,121 cases)

Jaundice group (366 cases)

Control group (77,953 cases)

p-value

Jaundice group (298 cases)

Control group (73,823 cases)

p-value

Agea (years)

  

0.305

  

0.147

 15–24

20 (5.5)

3,566 (4.6)

 

12 (4.0)

3,232 (4.4)

 

 25–34

294 (80.3)

61,240 (78.6)

 

247 (82.9)

57,851 (78.4)

 

 35–49

52 (14.2)

13,147 (16.9)

 

39 (13.1)

12,740 (17.3)

 

Incomeb

  

0.005*

  

0.054

 1 (lowest)

25 (6.8)

8,221 (10.5)

 

20 (6.7)

7,645 (10.4)

 

 2

48 (13.1)

12,553 (16.1)

 

41 (13.8)

11,627 (15.7)

 

 3

107 (29.2)

20,567 (26.4)

 

84 (28.2)

19,465 (26.4)

 

 4

107 (29.2)

24,046 (30.8)

 

90 (30.2)

23,065 (31.2)

 

 5 (highest)

79 (21.6)

12,566 (16.1)

 

63 (21.1)

12,021 (16.3)

 

Preterm delivery

5 (1.4)

1,407 (1.8)

0.693

2 (0.7)

1,328 (1.8)

0.187

Cesarean section

181 (49.5)

29,734 (38.1)

 < 0.001*

138 (46.3)

27,998 (37.9)

 < 0.001*

Multiple gestation

11 (3.0)

1,156 (1.5)

0.027*

7 (2.3)

1,073 (1.5)

0.215

ANC duration

211.50 ± 48.33

222.20 ± 35.94

 < 0.001*

217.21 ± 41.29

221.75 ± 37.27

0.059

  1. The number and ratio of cases in each group were presented as N (%), except for the duration of ANC that was expressed as mean ± standard deviation days
  2. ANC Antenatal care
  3. *Significance at p-value of < 0.05
  4. aage at the time of delivery, b income at the time of pregnancy diagnosis