Born in Bradford Data Dictionary

Maternity records BiB pregnancy (p1)

Table ID: BiB_Pregnancy.matrecs_bib_preg_p1

github | csv

Entity type Variables Entities Updated
Participant 143 9921 2020-11-18

_p1 tables contain the same variables as their parent table but only data collected at the first pregnancy

variable label value_type summary
has_matrecs_bib_preg_p1 Has maternity records bib pregnancy decimal mean (sd)
1.00 (0.00)

min < median < max
1.00 < 1.00 < 1.00

100.00% complete
has_prnprg_p1 Has: Pregnancy third trimester weight decimal 1 : has
100.00% complete
prnbp3rdtriw_p1 3rd trimester weight decimal mean (sd)
77.46 (15.46)

min < median < max
35.00 < 75.00 < 160.00

56.95% complete
prnbp3rdtriwdate_p1 Date of 3rd trimester weighing date from 2006-12-15
to 2011-05-18

56.49% complete
prnbp3rdtriwnotdoc_p1 3rd trimester weight not documented decimal 1 : Documented
2 : Not documented
99.95% complete
prnbpamnionoted_p1 Amniocentesis noted decimal 1 : No
2 : Yes
3 : Not documented
99.51% complete
prnbpamnioreasons_p1 Amniocentesis reasons text 10 unique values
210 non-missing values
3 to 38 characters
prnbpanaemianoted_p1 Anaemia noted decimal 1 : No
2 : Yes
3 : Not documented
99.74% complete
prnbpanaemiaresult_p1 Anaemia result decimal mean (sd)
9.12 (0.78)

min < median < max
4.50 < 9.40 < 9.90

22.93% complete
prnbpantibody_p1 Antibodies text 40 unique values
9884 non-missing values
2 to 27 characters
prnbpbookingdate_p1 Date of booking date from 2006-10-31
to 2010-12-14

99.22% complete
prnbpbplabn_p1 Number of BP obs in labour decimal mean (sd)
0.91 (0.41)

min < median < max
0.00 < 1.00 < 13.00

91.67% complete
prnbpbplabtaken_p1 Any BPs recorded in labour decimal 1 : No
2 : Yes
3 : Not documented
97.41% complete
prnbpbppostn_p1 Number of BPs recorded post partum decimal mean (sd)
3.56 (5.97)

min < median < max
0.00 < 2.00 < 155.00

97.52% complete
prnbpbppostrec_p1 Any BPs recorded postpartum decimal 1 : No
2 : Yes
3 : Not documented
99.82% complete
prnbpbppregn_p1 Number of BPs recorded in pregnancy decimal mean (sd)
11.05 (5.59)

min < median < max
0.00 < 10.00 < 115.00

99.88% complete
prnbpbppregrec_p1 Any blood pressures recorded in pregnancy decimal 1 : No
2 : Yes
3 : Not documented
99.94% complete
prnbpcervcerc_p1 Cervical Cerclage decimal 1 : No
2 : Yes
3 : Not documented
99.72% complete
prnbpchrovillsamp_p1 Chorionic villus sampling decimal 1 : No
2 : Yes
3 : Not documented
99.73% complete
prnbpchrovsreasons_p1 Reasons for chorionic villus sampling text 1 unique values
1 non-missing values
15 characters
prnbpconfetmon_p1 Continuous fetal monitoring decimal 1 : No
2 : Yes
3 : Not documented
0.41% complete
prnbpdesigpsutur_p1 Designation of person doing suturing text 3 unique values
434 non-missing values
6 to 14 characters
prnbpdischinf_p1 Vaginal discharge/infection decimal 1 : No
2 : Yes
3 : Not documented
99.84% complete
prnbpdruglab1_p1 Other drugs during labour (1) text 62 unique values
1279 non-missing values
4 to 18 characters
prnbpdruglab2_p1 Other drugs during labour (2) text 47 unique values
294 non-missing values
4 to 18 characters
prnbpdruglab3_p1 Other drugs during labour (3) text 41 unique values
161 non-missing values
7 to 18 characters
prnbpdruglab4_p1 Other drugs during labour (4) text 27 unique values
64 non-missing values
3 to 20 characters
prnbpdruglab5_p1 Other drugs during labour (5) text 15 unique values
29 non-missing values
7 to 15 characters
prnbpdruglab6_p1 Other drugs during labour (6) text 9 unique values
13 non-missing values
8 to 18 characters
prnbpdruglab7_p1 Other drugs during labour (7) text 4 unique values
4 non-missing values
10 to 15 characters
prnbpdruglab8_p1 Other drugs during labour (8) text 1 unique values
1 non-missing values
14 characters
prnbpeclampconv_p1 Eclamptic convulsions decimal 1 : No
2 : Yes
3 : Not documented
99.90% complete
prnbpelectcaes_p1 Elective caesarean decimal 1 : No
2 : Yes
3 : Not documented
99.95% complete
prnbpexhyper_p1 Preexisting hypertension decimal 1 : No
2 : Yes
95.59% complete
prnbpextceph_p1 External cephallic version decimal 1 : No
2 : Yes
3 : Not documented
99.89% complete
prnbpfolicacid_p1 Folic acid in last 6 months decimal 1 : No
2 : Yes
3 : Not documented
99.74% complete
prnbpgdm_p1 GDM diagnosed decimal 1 : No
2 : Yes
3 : Not documented
99.84% complete
prnbpgdmt_diet_p1 GDM treatment: diet decimal 1 : No
2 : Yes
3 : Not documented
4.29% complete
prnbpgdmt_insulin_p1 GDM treatment: insulin decimal 1 : No
2 : Yes
3 : Not documented
5.28% complete
prnbpgdmt_lifestyle_p1 GDM treatment: lifestyle changes decimal 1 : No
2 : Yes
3 : Not documented
2.99% complete
prnbpgdmt_metformin_p1 GDM treatment: metformin decimal 1 : No
2 : Yes
3 : Not documented
0.42% complete
prnbpgdmt_none_p1 GDM no treatment decimal 1 : No
2 : Yes
3 : Not documented
15.48% complete
prnbpgdmt_notdoc_p1 GDM treatment not documented decimal 1 : Documented
2 : Not documented
0.23% complete
prnbpgenherpes_p1 Genital herpes decimal 1 : No
2 : Yes
3 : Not documented
99.89% complete
prnbpgestaged3rdtriw_p1 Gestational age at 3rd trimester weight measurement (weeks) decimal mean (sd)
254.07 (19.09)

min < median < max
29.00 < 256.00 < 295.00

56.46% complete
prnbpgestagew3rdtriw_p1 Gestational age at 3rd trimester weight measurement (weeks) decimal mean (sd)
36.30 (2.73)

min < median < max
4.14 < 36.57 < 42.14

56.46% complete
prnbpgestht_p1 Gestational hypertension decimal 1 : No
2 : Yes
99.63% complete
prnbpgonorrhoea_p1 Gonorrhoea decimal 1 : No
2 : Yes
3 : Not documented
99.89% complete
prnbphdp_p1 HDP category decimal 1 : Normotensive
2 : Gestational HT
3 : Pre-eclampsia
99.63% complete
prnbphepatitisb_p1 Hepatitis b decimal 1 : No
2 : Yes
3 : Not documented
99.88% complete
prnbphyperemesis_p1 Hyperemesis decimal 1 : No
2 : Yes
3 : Not documented
99.90% complete
prnbpintfetmon_p1 Intermittent fetal monitoring decimal 1 : No
2 : Yes
3 : Not documented
0.46% complete
prnbpivf_p1 In vitro fertilisation decimal 1 : No
2 : Yes
3 : Not documented
99.89% complete
prnbplaburprot_p1 Was urine tested for protein in labour decimal 1 : No
2 : Yes
3 : Not documented
96.66% complete
prnbpoedemalab_p1 Any oedemas recorded in labour decimal 1 : No
2 : Yes
3 : Not documented
95.99% complete
prnbpoedemapreg_p1 Any oedemas recorded in pregnancy decimal 1 : No
2 : Yes
3 : Not documented
98.87% complete
prnbpoligohydram_p1 Oligohydramnios decimal 1 : No
2 : Yes
3 : Not documented
99.87% complete
prnbpothmed_p1 Other medications taken in last 6 months (y/n) decimal 1 : No
2 : Yes
3 : Not documented
99.32% complete
prnbpothmedn_p1 Other medications taken in last 6 months (count) decimal mean (sd)
0.47 (0.74)

min < median < max
0.00 < 0.00 < 6.00

97.46% complete
prnbppainrellab1_p1 Pain relief in labour (1) text 18 unique values
1514 non-missing values
4 to 19 characters
prnbppainrellab2_p1 Pain relief in labour (2) text 13 unique values
788 non-missing values
7 to 19 characters
prnbppainrellab3_p1 Pain relief in labour (3) text 10 unique values
298 non-missing values
7 to 19 characters
prnbppainrellab4_p1 Pain relief in labour (4) text 6 unique values
86 non-missing values
8 to 18 characters
prnbppainrellab5_p1 Pain relief in labour (5) text 5 unique values
14 non-missing values
9 to 18 characters
prnbppainrellab6_p1 Pain relief in labour (6) text 1 unique values
2 non-missing values
18 characters
prnbpperinealtr_p1 Perineal trauma decimal 1 : None
10 : Not documented
2 : 1st degree
3 : 2nd degree
4 : 3rd degree
5 : 4th degree
6 : Episiotomy
7 : Laceration
8 : Tear
9 : Graze
14.93% complete
prnbpplacpraev_p1 Placenta praevia decimal 1 : No
2 : Yes
3 : Not documented
99.90% complete
prnbppolyhydr_p1 Polyhydramnios/hydramnios decimal 1 : No
2 : Yes
3 : Not documented
99.91% complete
prnbppostadmany_p1 Any hospital admissions postpartum decimal 1 : No
2 : Yes
3 : Not documented
98.59% complete
prnbppostadmn_p1 Number of hospital admissions post partum decimal mean (sd)
0.01 (0.09)

min < median < max
0.00 < 0.00 < 3.00

97.96% complete
prnbppostsutexam_p1 Post suturing examination decimal 1 : No
2 : Yes
3 : Not documented
7.04% complete
prnbppreeclampsia_p1 Pre-eclampsia decimal 1 : No
2 : Yes
99.63% complete
prnbppregadmany_p1 Any hospital admissions in pregnancy decimal 1 : No
2 : Yes
3 : Not documented
15.87% complete
prnbppregadmn_p1 Number hospital admissions in pregnancy decimal mean (sd)
0.85 (1.36)

min < median < max
0.00 < 0.00 < 15.00

15.78% complete
prnbppresutexam_p1 Pre suturing examination decimal 1 : No
2 : Yes
3 : Not documented
7.25% complete
prnbprenalpreg_p1 Any renal function recorded in pregnancy decimal 1 : No
2 : Yes
3 : Not documented
99.54% complete
prnbprenalpregn_p1 Number of renal function observations decimal mean (sd)
1.56 (1.94)

min < median < max
0.00 < 1.00 < 21.00

99.06% complete
prnbpsfetgrthret_p1 Suspected fetal growth retardation decimal 1 : No
2 : Yes
3 : Not documented
99.91% complete
prnbpsyphilis_p1 Syphilis decimal 1 : No
2 : Yes
3 : Not documented
99.90% complete
prnbpthrpreterm_p1 Threatened preterm birth decimal 1 : No
2 : Yes
3 : Not documented
99.91% complete
prnbpurtrinf_p1 Urinary tract infection decimal 1 : No
2 : Yes
3 : Not documented
99.90% complete
prnbpvagbld1st_p1 Vaginal bleeding 1st trimester decimal 1 : No
2 : Yes
3 : Not documented
99.91% complete
prnbpvagbld2nd_p1 Vaginal bleeding 2nd trimester decimal 1 : No
2 : Yes
3 : Not documented
99.90% complete
prnbpvagbld3rd_p1 Vaginal bleeding 3rd trimester decimal 1 : No
2 : Yes
3 : Not documented
99.88% complete
prnpbaddvit_p1 Pregnancy vitamins in last 6 months decimal 1 : No
2 : Yes
3 : Not documented
99.63% complete
prnpbgestagedpregbk_p1 Gestational age in days at BiB pregnancy booking decimal mean (sd)
89.40 (26.25)

min < median < max
0.00 < 85.00 < 271.00

99.06% complete
prnpbgestagewpregbk_p1 Gestational age in weeks at BiB pregnancy booking decimal mean (sd)
12.77 (3.75)

min < median < max
0.00 < 12.14 < 38.71

99.06% complete
prnprexconany_p1 Any pre-existing condition decimal 1 : No
2 : Yes
3 : Not documented
88.96% complete
prnprexconasthma_p1 Pre-existing asthma decimal 1 : No
2 : Yes
3 : Not documented
22.65% complete
prnprexconbackprob_p1 Pre-existing back problems decimal 1 : No
2 : Yes
3 : Not documented
20.74% complete
prnprexcondoth1_p1 Other pre-existing condition 1 text 272 unique values
2239 non-missing values
2 to 42 characters
prnprexcondoth2_p1 Other pre-existing condition 2 text 81 unique values
140 non-missing values
2 to 39 characters
prnprexcondoth3_p1 Other pre-existing condition 3 text 19 unique values
21 non-missing values
6 to 28 characters
prnprexcondoth4_p1 Other pre-existing condition 4 text 3 unique values
3 non-missing values
10 to 13 characters
prnprexconeclampsia_p1 Previous eclampsia decimal 1 : No
2 : Yes
3 : Not documented
16.84% complete
prnprexconepilepsy_p1 Pre-existing epilepsy decimal 1 : No
2 : Yes
3 : Not documented
17.12% complete
prnprexconfemcirc_p1 Pre-existing female circumcision decimal 1 : No
2 : Yes
3 : Not documented
16.89% complete
prnprexconfertprob_p1 Pre-existing fertility problems decimal 1 : No
2 : Yes
3 : Not documented
18.65% complete
prnprexcongeninf_p1 Pre-existing genital infection decimal 1 : No
2 : Yes
3 : Not documented
17.12% complete
prnprexcongynprob_p1 Pre-existing gynae problems decimal 1 : No
2 : Yes
3 : Not documented
18.13% complete
prnprexconheartprob_p1 Pre-existing heart problems decimal 1 : No
2 : Yes
3 : Not documented
17.28% complete
prnprexconhighbp_p1 Pre-existing high blood pressure decimal 1 : No
2 : Yes
3 : Not documented
17.74% complete
prnprexconincont_p1 Pre-existing incontinence decimal 1 : No
2 : Yes
3 : Not documented
17.24% complete
prnprexconkidprob_p1 Pre-existing kidney problems decimal 1 : No
2 : Yes
3 : Not documented
17.75% complete
prnprexconlivdis_p1 Pre-existing liver disease decimal 1 : No
2 : Yes
3 : Not documented
16.82% complete
prnprexconmentheal_p1 Pre-existing mental illness decimal 1 : No
2 : Yes
3 : Not documented
19.00% complete
prnprexconmigraine_p1 Pre-existing migraine decimal 1 : No
2 : Yes
3 : Not documented
21.71% complete
prnprexconsti_p1 Pre-existing constipation decimal 1 : No
2 : Yes
3 : Not documented
17.22% complete
prnprexcont1dm_p1 Pre-existing type 1 diabetes decimal 1 : No
2 : Yes
3 : Not documented
16.89% complete
prnprexcont2dm_p1 Pre-existing type 2 diabetes decimal 1 : No
2 : Yes
3 : Not documented
16.81% complete
prnprexcontbexp_p1 Pre-existing TB exposure decimal 1 : No
2 : Yes
3 : Not documented
17.08% complete
prnprexconthromb_p1 Pre-existing thrombosis decimal 1 : No
2 : Yes
3 : Not documented
16.91% complete
prnprexconthryroid_p1 Pre-existing thyroid problems decimal 1 : No
2 : Yes
3 : Not documented
17.90% complete
prnprfhistdiab_p1 FH of diabetes decimal 1 : No
2 : Yes
3 : Not documented
99.87% complete
prnprfhistdiabch_p1 FH of diabetes in woman’s child decimal 1 : No
2 : Yes
3 : Not documented
99.87% complete
prnprfhistdiabfa_p1 FH of diabetes in woman’s father decimal 1 : No
2 : Yes
3 : Not documented
99.87% complete
prnprfhistdiabmo_p1 FH of diabetes in woman’s mother decimal 1 : No
2 : Yes
3 : Not documented
99.87% complete
prnprfhistdiabrelnd_p1 FH of diabetes, relationship not documented decimal 1 : No family history
2 : Relatives documented
3 : Relatives not documented
4 : Family history not documented
99.87% complete
prnprfhistdiabsb_p1 FH of diabetes in woman’s sibling decimal 1 : No
2 : Yes
3 : Not documented
99.87% complete
prnprfhistecl_p1 FH of eclampsia decimal 1 : No
2 : Yes
3 : Not documented
99.84% complete
prnprfhisteclch_p1 FH of eclampsia in woman’s child decimal 1 : No
2 : Yes
3 : Not documented
99.84% complete
prnprfhisteclfa_p1 FH of eclampsia in woman’s father decimal 1 : No
2 : Yes
3 : Not documented
99.84% complete
prnprfhisteclmo_p1 FH of eclampsia in woman’s mother decimal 1 : No
2 : Yes
3 : Not documented
99.84% complete
prnprfhisteclrelnd_p1 FH of eclampsia, relationship not documented decimal 1 : No family history
2 : Relatives documented
3 : Relatives not documented
4 : Family history not documented
99.84% complete
prnprfhisteclsb_p1 FH of eclampsia in woman’s sibling decimal 1 : No
2 : Yes
3 : Not documented
99.84% complete
prnprfhisthyp_p1 FH of high blood pressure decimal 1 : No
2 : Yes
3 : Not documented
99.90% complete
prnprfhisthypch_p1 FH of hypertension in woman’s child decimal 1 : No
2 : Yes
3 : Not documented
99.90% complete
prnprfhisthypfa_p1 FH of hypertension in woman’s father decimal 1 : No
2 : Yes
3 : Not documented
99.90% complete
prnprfhisthypmo_p1 FH of hypertension in woman’s mother decimal 1 : No
2 : Yes
3 : Not documented
99.90% complete
prnprfhisthyprelnd_p1 FH of hypertension, relationship not documented decimal 1 : No family history
2 : Relatives documented
3 : Relatives not documented
4 : Family history not documented
99.90% complete
prnprfhisthypsb_p1 FH of hypertension in woman’s sibling decimal 1 : No
2 : Yes
3 : Not documented
99.90% complete
prnprfhistment_p1 FH of mental illness decimal 1 : No
2 : Yes
3 : Not documented
99.89% complete
prnprfhistmentch_p1 FH of mental illness in woman’s child decimal 1 : No
2 : Yes
3 : Not documented
99.89% complete
prnprfhistmentfa_p1 FH of mental illness in woman’s father decimal 1 : No
2 : Yes
3 : Not documented
99.89% complete
prnprfhistmentmo_p1 FH of mental illness in woman’s mother decimal 1 : No
2 : Yes
3 : Not documented
99.89% complete
prnprfhistmentrelnd_p1 FH of mental illness, relationship not documented decimal 1 : No family history
2 : Relatives documented
3 : Relatives not documented
4 : Family history not documented
99.89% complete
prnprfhistmentsb_p1 FH of mental illness in woman’s sibling decimal 1 : No
2 : Yes
3 : Not documented
99.89% complete
prnprfhistthrom_p1 FH of thrombosis decimal 1 : No
2 : Yes
3 : Not documented
99.88% complete
prnprfhistthromch_p1 FH of thrombosis in woman’s child decimal 1 : No
2 : Yes
3 : Not documented
99.88% complete
prnprfhistthromfa_p1 FH of thrombosis in woman’s father decimal 1 : No
2 : Yes
3 : Not documented
99.88% complete
prnprfhistthrommo_p1 FH of thrombosis in woman’s mother decimal 1 : No
2 : Yes
3 : Not documented
99.88% complete
prnprfhistthromrelnd_p1 FH of thrombosis, relationship not documented decimal 1 : No family history
2 : Relatives documented
3 : Relatives not documented
4 : Family history not documented
99.88% complete
prnprfhistthromsb_p1 FH of thrombosis in woman’s sibling decimal 1 : No
2 : Yes
3 : Not documented
99.88% complete