NVP in relation to women's initial weight

20.   NVP IN RELATION TO WOMEN'S INITIAL WEIGHT

 

  1. Vomiting is more likely to occur in patients weighing 77.1kg (170lbs = 12st 1lb) or more.
    8.019 pregnancies, 4,517 reported vomiting, 3,502 did not vomit. (18) t P=0.003.
  2. Maternal risk factor is high body weight in hyperemesis. 419 women with hyperemesis, 836 did not vomit. (22)
  3. Pre-pregnant weight of the group experiencing no nausea or vomiting was lower than that of the groups with nausea, and nausea and vomiting. 414 women, 44 women had no NVP. (21)
  4. No relation between NVP and woman’s weight. 363 women in study. (53)
  5. Weight was found to have no statistical significance in comparing those with symptoms to those with no symptoms. 500 women in study, 124 had no symptoms. (27) t
  6. Body mass index was not significantly associated with nausea or vomiting or retching subscales. 100 women in study population. (48)
  7. The woman’s weight was not predictive of nausea and vomiting in pregnancy.
    160 women in study. (80)
  8. Our results show small pre-pregnancy body weight is a significant variable for hyperemesis gravidarum during pregnancy. (154) 3350 singleton deliveries in study. Small pre-pregnancy habitus increased the risk of hyperemesis gravidarum. (154)
  9. Risk for hospital admission for hyperemesis gravidarum was greater in under-weight than in ideal weight women. No significant association was seen among over-weight women. The risk was decreased among obese women. 24,485 women in study. (155)
  10. Pre-pregnancy weight (Kg)

Admissions for HG

 

n

%

 

502

45.5

60-69

279

25.3

70-79

153

13.9

≥80

169

15.3

(60Kg = 9st 4lb)
Total number with HG = 1270 (158)

11.   Pregnancy weight in protocol group

         HG in 130 pregnancies 66.66 ± 18.69Kg = 146.6lbs – 10.5st

         And in control treated group for HG pre-pregnancy weight of 99 patients

         62.74 ± 10.40Kg = 138.0lbs = 9.8st

         Both groups within satisfactory pregnancy weight. (150)

 

 

Summary

 

Heavier women more likely to have NVP. (18) t (21) (22)

9,688 women in three studies.                                                          Total:            Three References

 

No relation between body weight and NVP. (27) t (48) (53) (80) (150)

1,123 women in four studies.                                                            Total:            Five References

 

Low initial body weight associated with HG (154) (155) (158)

                                                                                                          Total:            Three References

 

Pregnancy Sickness Support

Volunteer log-in


Pregnancy Sickness Support


Become a volunteer                 Forgot password?