Epidemiology

Question 1

What is the rate of OASI in UK? Nullip? Multip?

Answer 1

2.9% all deliveries
6.1% nullips
1.7% multips

Question 2

What is the relative risk of VTE in pregnancy? PP?

Answer 2

4-6 x
Up to 10x

Question 3

What is the rate of PE in pregnancy?

Answer 3

1.3/10,000

Question 4

What is the rate of DVT in pregnancy?

Answer 4

1-2/1000

Question 5

What is the rate of neonatal HSV in UK?

Answer 5

Roughly 1-3/100,000

Question 6

What is the rate of HIV in pregnancy in the UK?

Answer 6

2/1000 or 0.2% pregnancies

Question 7

What is the incidence of placenta accreta spectrum in UK?

Answer 7

1.7/10,000

Question 8

What is the incidence of HG in pregnancy?

Answer 8

1.5% of pregnancies

Question 9

What is the lifetime prevalence of fibroids?

Answer 9

70% white women, 80% black women

Question 10

What are the rates of miscarriage per age group?

Answer 10

<30: 10%
30-35: 15%
35-40: 25%
40-45: 50%
>45: 90%

Question 11

What is the stillbirth rate UK?

Answer 11

1/250

Question 12

What is the rate of OC in the UK? Which ethnic group is most commonly affected?

Answer 12

7 in 1000 or 1 in 140
South Asian

Question 13

What is the risk of stillbirth with OC?

Answer 13

If bile acids <40: background risk
If 40-100: background until 38/39 weeks
If >100: increased risk

Question 14

What is the maternal mortality rate in AFLP?

Answer 14

Some quotes 20% worldwide but now down to 4%

Question 15

What is the incidence of molar pregnancy?

Answer 15

1/1000

Question 16

What is the incidence of choriocarcinoma?

Answer 16

1/45,000 pregnancies

Question 17

What is the incidence of listeriosis in pregnancy?

Answer 17

1 in 10,000

Question 18

What is the fetal mortality rate in listeriosis?

Answer 18

20-30% (some quote 50%)

Question 19

What is the incidence of post-partum infection?

Answer 19

5-7% of pregnancies

Question 20

What is the incidence of PPH?

Answer 20

Roughly 10%
Severe: 1-2%

Question 21

What is the incidence of twin births in the UK?

Answer 21

1 in 60 births

Question 22

What is the incidence of TTTS in MCDA? In all pregnancies?

Answer 22

10-15% of MCDA pregnancies
1-3/10,000 pregnancies total

Question 23

What is the incidence of HTN in pregnancy? PET?

Answer 23

HTN: 8-10% all pregnancies
PET: 2-6% - 4% in 1st pregnancy, 1.7% in second

Question 24

What is the incidence of HELLP? Mortality?

Answer 24

1-2/100,000 pregnancies
Mortality 1%

Question 25

What is the incidence of eclampsia?

Answer 25

2/10,000 pregnancies

Question 26

What is the incidence of AFLP? Mortality rate?

Answer 26

1/10,000
Mortality 20%

Question 27

What is the incidence of ectopic pregnancy? Mortality?

Answer 27

11 in 1000 pregnancies
0.2% mortality

Question 28

What is the prevalence of antiphospholipid antibodies in the pregnant population? In recurrent miscarriage?

Answer 28

2% pregnant women
15% of recurrent miscarriage

Question 29

What is the prevalence of recurrent miscarriage?

Answer 29

1% of couples