Beta-coefficients and 95% CIs of the linear regression models for difference in weight at 24, 48 and >72 hours post partum according to maternal intrapartum colloids and crystalloids exposure
| Difference in weight in grams (β and 95% CI) | ||||||
| 24 hours post partum | 48 hours post partum | 72 hours post partum | ||||
| Model 1 (crude) | Model 3 | Model 1 (crude) | Model 3 | Model 1 (crude) | Model 3 | |
| Colloids plus crystalloids | −0.6 (-12.6 to 11.4) | −5.2 (-17.5 to 7.0) | −0.4 (-15.9 to 15.0) | −10.8 (-26.1 to 4.5) | −5.4 (-28.2 to 17.4) | −9.2 (-32.0 to 13.7) |
| Crystalloids only | Reference | Reference | Reference | Reference | Reference | Reference |
| Colloids doses in mL (vs 0) | ||||||
| >0–500 | −5.8 (-27.9 to 16.4) | −9.3 (-31.3 to 12.7) | −3.1 (-31.9 to 25.7) | −9.5 (-37.3 to 18.3) | −11.0 (-55.5 to 33.4) | −13.1 (-56.8 to 30.6) |
| >500 | −0.4 (-14.6 to 13.8) | −5.8 (-20.1 to 8.5) | 1.6 (-16.8 to 20.1) | −9.8 (-27.8 to 8.1) | −8.2 (-35.2 to 18.8) | −7.9 (-34.5 to 18.7) |
| Crystalloids doses in mL (vs 0) | ||||||
| >0–1000 | 4.2 (-33.0 to 41.4) | −2.6 (-40.9 to 35.7) | 5.0 (-43.3 to 53.3) | 13.9 (-34.3 to 62.1) | −0.03 (-73.6 to 73.5) | 39.8 (-35.6 to 115.1) |
| >1000–2000 | 2.9 (-33.9 to 39.6) | −1.5 (-39.4 to 36.4) | 9.5 (-38.2 to 57.2) | 21.9 (-25.8 to 69.6) | −7.6 (-80.1 to 64.9) | 39.5 (-35.1 to 114.1) |
| >2000 | −0.5 (-38.8 to 37.8) | −6.8 (-46.0 to 32.4) | 2.8 (-46.9 to 52.6) | 9.8 (-39.4 to 59.1) | −21.6 (-97.2 to 53.9) | 15.2 (-61.5 to 91.9) |
| Total intravenous fluid doses in mL: (vs >0–1000) | ||||||
| >1000–2000 | −4.5 (-16.6 to 7.6) | −2.9 (-15.0 to 9.2) | 4.3 (-11.5 to 20.1) | 8.1 (-7.1 to 23.3) | −7.4 (-31.7 to 17.0) | 3.5 (-20.2 to 27.3) |
| >2000–3000 | −1.6 (-16.9 to 13.7) | −2.7 (-17.8 to 12.3) | 0.8 (-19.1 to 20.7) | −0.3 (-19.2 to 18.6) | −24.8 (-54.6 to 4.9) | −22.1 (-50.9 to 6.6) |
| >3000 | −26.7 (-67.7 to 14.3) | −27.3 (-66.9 to 12.2) | −14.4 (-38.9 to 67.7) | −6.4 (-43.4 to 56.2) | −3.9 (-81.1 to 73.3) | −0.6 (-73.0 to 71.8) |
The regression coefficient represents the estimated difference in weight since birth.
Model 2 adjusted results were similar to the adjusted results of model 3 (only results from model 3 are presented in the table; results of model 2 are available on request).
Model 2 adjusted for maternal age, gestational diabetes, hypertension during pregnancy, number of pregnancies, viable births, lost pregnancies, gestational age, pre-eclampsia, cigarette smoking, alcohol use, drug use, epidural before caesarean section and election to have a caesarean section.
Model 3 adjusted for maternal age, gestational diabetes, hypertension during pregnancy, number of pregnancies, viable births, lost pregnancies, gestational age, pre-eclampsia, cigarette smoking, alcohol use, drug use, epidural before caesarean section, election to have a caesarean section, Apgar score, exclusive breast feeding, number of stools, number of urine, presence of fever and phototherapy.