Table 2 Relationship between Ca intake and hypertensive disorder of pregnancy

Participants with intake > threshold, %

38.9%

32.1%

21.6%

18.0%

7.9%

3.3%

2.0%

HDP

 Occurrence, %

3.3%

3.3%

3.3%

3.3%

3.2%

3.2%

3.2%

 OR (95% CI)

0.96 (0.85–1.09)

0.98 (0.86–1.11)

0.95 (0.82–1.10)

0.90 (0.77–1.06)

1.04 (0.84–1.30)

1.25 (0.92–1.69)

1.25 (0.84–1.84)

 aOR (95% CI)

0.96 (0.85–1.09)

0.98 (0.86–1.11)

0.95 (0.82–1.10)

0.89 (0.76–1.05)

1.04 (0.83–1.15)

1.20 (0.88–1.63)

1.22 (0.83–1.81)

Eo-HDP

 Occurrence, %

0.6%

0.6%

0.6%

0.6%

0.6%

0.6%

0.6%

 OR (95% CI)

0.95 (0.71–1.27)

1.02 (0.75–1.38)

0.96 (0.68–1.36)

0.91 (0.63–1.34)

1.22 (0.75–1.99)

1.27 (0.63–2.59)

1.05 (0.39–2.84)

 aOR (95% CI)

0.91 (0.68–1.23)

0.99 (0.73–1.34)

0.93 (0.65–1.32)

0.88 (0.60–1.29)

1.19 (0.73–1.95)

1.19 (0.58–2.43)

1.02 (0.38–2.77)

Lo-HDP

 Occurrence, %

2.4%

2.4%

2.4%

2.4%

2.4%

2.3%

2.4%

 OR (95% CI)

0.97 (0.84–1.12)

0.97 (0.84–1.13)

0.94 (0.79–1.12)

0.88 (0.73–1.06)

1.04 (0.80–1.34)

1.26 (0.88–1.79)

1.20 (0.76–1.91)

 aOR (95% CI)

0.97 (0.84–1.13)

0.97 (0.84–1.13)

0.94 (0.79–1.12)

0.88 (0.73–1.06)

1.03 (0.80–1.34)

1.22 (0.86–1.75)

1.19 (0.75–1.89)