Table 5 Maternal diseases associated with neonatal jaundice identified from the matched samples in studies A and B

Study A

366 cases

3,660 cases

366 cases

3,660 cases

Other diseases of digestive system (K92)

4 (1.1)

3.80 (0.1)

13.97 (2.21–238.30)

0.004

4 (1.1)

3.89 (0.1)

14.12 (2.70–82.26)

[0.003^*]

0.54 (0.21–1.38)

[0.208]

1.55 (1.24–1.93)

[< 0.001^*]

1.60 (0.79–3.21)

[0.234]

0.99 (0.99–1.00)

[< 0.001^*]

Other surgical follow-up care (Z48)

6 (1.6)

9.82 (0.3)

6.96 (1.97–24.24)

0.003

6 (1.6)

9.82 (0.3)

6.18 (2.09–18.53)

[0.003^*]

0.53 (0.21–1.37)

[0.200]

1.51 (1.21–1.89)

[< 0.001^*]

1.71 (0.86–3.40)

[0.166]

0.99 (0.99–1.00)

[< 0.001^*]

Other and unspecified syphilis (A53)

8 (2.2)

17.52 (0.5)

4.94 (1.81–12.47)

0.002

8 (2.2)

17.52 (0.5)

5.24 (2.18–12.61)

[< 0.001^*]

0.53 (0.21–1.37)

[0.201]

1.56 (1.25–1.95)

[< 0.001^*]

1.69 (0.85–3.36)

[0.177]

0.99 (0.99–1.00)

[< 0.001^*]

Leiomyoma of uterus (D25)

11 (3.0)

34.75 (0.9)

3.32 (1.50–6.80)

0.003

11 (3.0)

34.77 (1.0)

3.22 (1.59–6.52)

[0.003^*]

0.53 (0.21–1.36)

[0.198]

1.54 (1.23–1.92)

[< 0.001^*]

1.66 (0.83–3.30)

[0.194]

0.99 (0.99–1.00)

[< 0.001^*]

Vasomotor and allergic rhinitis (J30)

21 (5.7)

357.13 (9.8)

0.56 (0.34–0.89)

0.014

21 (5.7)

359.79 (9.8)

0.58 (0.37–0.92)

[0.024^*]

0.54 (0.21–1.38)

[0.207]

1.55 (1.24–1.94)

[< 0.001^*]

1.67 (0.84–3.32)

[0.187]

0.99 (0.99–1.00)

[< 0.001^*]

Acute tonsillitis (J03)

11 (3.0)

224.56 (6.1)

0.48 (0.23–0.88)

0.016

11 (3.0)

226.83 (6.2)

0.49 (0.26–0.91)

[0.025^*]

0.53 (0.21–1.36)

[0.197]

1.55 (1.24–1.94)

[< 0.001^*]

1.67 (0.84–3.32)

[0.186]

0.99 (0.99–1.00)

[< 0.001^*]

Acute bronchitis (J20)

12 (3.3)

258.30 (7.1)

0.45 (0.23–0.81)

0.006

12 (3.3)

258.49 (7.1)

0.47 (0.26–0.84)

[0.013^*]

0.53 (0.21–1.36)

[0.198]

1.55 (1.24–1.94)

[< 0.001^*]

1.67 (0.84–3.31)

[0.187]

0.99 (0.99–1.00)

[< 0.001^*]

Gastritis and duodenitis (K29)

13 (3.6)

326.31 (8.9)

0.38 (0.20–0.66)

 < 0.001

13 (3.6)

326.31 (8.9)

0.39 (0.22–0.69)

[0.001^*]

0.53 (0.21–1.36)

[0.199]

1.55 (1.24–1.94)

[< 0.001^*]

1.76 (0.88–3.50)

[0.149]

0.99 (0.99–1.00)

[< 0.001^*]

Study B

298 cases

2,980 cases

298 cases

2,980 cases

Salpingitis and oophoritis (N70)

10 (3.4)

31.30 (1.1)

3.37 (1.45–7.20)

0.005

10 (3.4)

31.36 (1.1)

3.33 (1.59–6.94)

[0.003^*]

0.30 (0.07–1.27)

[0.106]

1.42 (1.11–1.82)

[0.007^*]

1.47 (0.63–3.44)

[0.421]

1.00 (0.99–1.00)

[0.051]

Gastritis and duodenitis (K29)

111 (37.2)

1,332.70 (44.7)

0.73 (0.57–0.94)

0.017

111 (37.2)

1,336.31 (44.8)

0.75 (0.58–0.95)

[0.023^*]

0.30 (0.07–1.28)

[0.108]

1.43 (1.12–1.83)

[0.006^*]

1.53 (0.66–3.55)

[0.372]

1.00 (0.99–1.00)

[0.092]

Vasomotor and allergic rhinitis (J30)

92 (30.9)

1,210.73 (40.6)

0.65 (0.50–0.85)

0.002

92 (30.9)

1,210.73 (40.6)

0.66 (0.51–0.86)

[0.003^*]

0.30 (0.07–1.27)

[0.107]

1.43 (1.12–1.83)

[0.006^*]

1.53 (0.66–3.54)

[0.376]

1.00 (0.99–1.00)

[0.102]

Dyspepsia (K30)

35 (11.7)

576.78 (19.4)

0.56 (0.37–0.80)

0.001

35 (11.7)

576.78 (19.4)

0.56 (0.39–0.81)

[0.003^*]

0.30 (0.07–1.28)

[0.109]

1.43 (1.12–1.83)

[0.006^*]

1.57 (0.68–3.64)

[0.347]

1.00 (0.99–1.00)

[0.093]

Other disorders of nose and nasal sinuses (J34)

7 (2.3)

171.37 (5.8)

0.40 (0.16–0.85)

0.014

7 (2.3)

172.14 (5.8)

0.40 (0.19–0.87)

[0.022^*]

0.30 (0.07–1.26)

[0.104]

1.42 (1.11–1.81)

[0.007^*]

1.55 (0.67–3.59)

[0.358]

1.00 (0.99–1.00)

[0.064]

Heartburn (R12)

5 (1.7)

168.43 (5.7)

0.29 (0.09–0.69)

0.002

5 (1.7)

168.43 (5.7)

0.29 (0.12–0.71)

[0.008^*]

0.30 (0.07–1.28)

[0.108]

1.43 (1.12–1.83)

[0.006^*]

1.54 (0.67–3.57)

[0.365]

1.00 (0.99–1.00)

[0.066]