Table 1:

Studies included in the systematic review and meta-analysis

Author (year)CountryStudy populationnAge, yr, mean*Baseline office BP,* mm Hg, mean ± SDBrand of monitor and validation for pregnancyNo. of measurements/wk
Dalton et al. (1987) (20)UKHDP10Range
28 to 39
136 ± 17/83 ± 8Dinamap 1846, not validated4 to 28
Mooney et al. (1991) (21)UK1 or 2 high BP readings35NA139 ± 13/74 ± 10Dinamap 1846P, not validated10
Naef et al. (1998) (22)USHTN7NAMAP 102 ± 10Vasoplex, not validated4 to 28
Lo et al. (2002) (23)New ZealandNormal101NA107 ± 8/66 ± 7Omron HEM-705CP, validated4 (1 d only)
Brown et al. (2004) (24)New ZealandWCH66NA126/80Omron HEM-705CP, not validated6
Rey et al. (2007) (25)CanadaNormal, HTN123Normal 31.4
HTN 32.7
127 ± 3/80 ± 2Aneroid, not validated3 to 7
Rey et al. (2009) (26)CanadaHTN, WCH, PE159HTN 32.5
WCH 29.6
PE 32.2
NAAneroid, not validated6 to 14
Chung et al. (2009) (27)UKHDP21NANAMicrolife WatchBP, validated24
BOSHI (2013, 2015, 2016) (17) (19)JapanNormal53031.2Normal 108 ± 11/66 ± 9
HTN 119 ± 13/74 ± 9
Omron HEM-747IC, HEM7080IC, not validated7
Denolle (2014) (28)FranceNormal4530115 ± 11/65 ± 7Hestia Pharma D2, not validated36
Tucker et al. (2017) (29)UKHigh risk for PE16131.0117 ± 10/71 ± 9Microlife WatchBP, validated12
Mikami et al. (2017) (30)JapanNormal10035.8114 ± 10/68 ± 6Omron 7251G, not validated14
Lan et al. (2017) (31)AustraliaHTN3733.4NAOmron HEM-7200, not validated14
Perry et al. (2018) (32)UKHTN16632.5NAMicrolife WatchBP, validated4 to 14
Kalafat et al. (2018) (33)UKHTN14734134 ± 3/88 ± 3Microlife WatchBP, validatedNA
Vestgaard et al. (2019) (34)DenmarkNormal10332115 ± 11/72 ± 7Microlife 3A Plus, validated18
Vestgaard et al. (2019) (35)DenmarkPre-existing diabetes mellitus222WCH: 33
HTN: 34
Normal: 32
WCH: 133 ± 10/87 ± 5
HTN: 130 ± 13/84 ± 10
Normal: 117 ± 9/74 ± 6
Microlife 3A Plus, validated18
Pealing et al. (2019) (36)UKHTN
HDP
154HTN: 35.9
GHTN: 33.4
HTN: 136.6 ± 13.8/85.9 ± 10.1
GHTN: 139.5 ± 13.1/86.9 ± 9.9
Microlife WatchBP, validated14
Usuzaki et al. (2020) (37)JapanNormal65632.2110.5 ± 10.8/63.8 ± 8.7Omron HEM-7080IC, not validated7
  • Note: BOSHI = Babies and Their Parents’ Longitudinal Observation in Suzuki Memorial Hospital on Intrauterine Period, BP = blood pressure, GHTN = gestational hypertension, HDP = hypertensive disorders of pregnancy, HTN = hypertension, MAP = mean arterial pressure, NA = not available, PE = preeclampsia, SD = standard deviation, WCH = white coat hypertension.

  • * Except where indicated otherwise.

  • All studies were observational except Pealing and colleagues. (36)