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Table 1 Characteristics of the participating pregnancy cohorts (n = 218,216)a

From: Gestational weight gain charts for different body mass index groups for women in Europe, North America, and Oceania

Cohort name, number of participants, birth years (country) Maternal pre-pregnancy body mass index (kg/m2) Maternal total gestational weight gain (kg) Gestational age at birth (weeks)
ABCD, n = 7820, 2003–2004
(The Netherlands)
22.3 (20.5, 24.8) NA 40.0 (39.0, 41.0)
ALSPAC, n = 11,344, 1991–1992
(UK)
22.2 (20.5, 24.4) 12.5 (9.5, 15.5) 40.0 (39.0, 41.0)
AOB/F, n = 2941, 2008–2010
(Canada)
23.0 (20.8, 26.3) NA 39.0 (38.0, 40.0)
Co.N.ER, n = 637, 2004–2005
(Italy)
21.1 (19.7, 23.4) 13.0 (10.0, 16.0) 39.0 (39.0, 40.0)
DNBC, n = 42,761, 1996–2002
(Denmark)b
22.5 (20.7, 25.1) 15.0 (12.0, 18.0) 40.1 (39.1, 41.0)
EDEN, n = 1875, 2003–2005
(France)
22.1 (20.1, 25.3) 13.0 (11.0, 16.3) 39.0 (39.0, 40.0)
FCOU, n = 3650, 1993–1996
(Ukraine)
21.6 (19.8, 24.0) 12.0 (9.2, 15.0) 40.0 (39.0, 41.0)
GASPII, n = 675, 2003–2004
(Italy)
21.3 (19.8, 23.6) 13.0 (10.5, 16.0) 40.0 (39.0, 41.0)
GECKO Drenthe, n = 2501, 2006–2007 (The Netherlands) 23.7 (21.5, 26.8) 13.0 (10.0, 17.0) 40.0 (39.0, 40.9)
Generation R, n = 7183 2002–2006 (The Netherlands) 22.6 (20.8, 25.4) 12.0 (9.0, 16.0) 40.1 (39.0, 41.0)
Generation XXI, n = 7621, 2005–2006 (Portugal) 22.9 (21.0, 25.8) 13.0 (10.0, 17.0) 39.0 (38.0, 40.0)
GENESIS, n = 2218, 2003–2004
(Greece)
21.9 (20.2, 24.0) 13.0 (10.0, 17.0) 40.0 (39.0, 40.0)
Gen3G, n = 846, 2010–2013
(Canada)
23.3 (20.9, 27.3) 13.7 (10.7, 17.0) 39.4 (38.5, 40.2)
GINIplus, n = 2329, 1995–1998
(Germany)
22.1 (20.4, 24.2) 13.0 (10.0, 15.7) 40.0 (39.0, 41.0)
HUMIS, n = 1067, 2003–2008
(Norway)
23.5 (21.3, 26.2) 14.0 (11.0, 18.0) 40.1 (39.0, 41.1)
INMA, n = 2561, 1997–2008
(Spain)
22.5 (20.7, 25.0) 13.5 (10.5, 16.6) 39.9 (38.9, 40.6)
KOALA, n = 2812, 2000–2002
(The Netherlands)
22.7 (20.9, 25.3) 14.0 (11.0, 17.0) 40.0 (39.0, 40.0)
Krakow Cohort, n = 503,
2000–2003 (Poland)
21.0 (19.5, 22.7) 15.0 (12.0, 18.0) 40.0 (39.0, 40.0)
LISAplus, n = 2962, 1997–1999
(Germany)
21.7 (20.2, 24.1) 14.0 (11.5, 17.0) 40.0 (39.0, 41.0)
LUKAS, n = 417, 2002–2005
(Finland)
24.1 (21.9, 27.2) 13.8 (10.9, 17.8) 40.0 (39.0, 40.0)
MoBa, n = 88,503, 1999–2009
(Norway)
23.1 (21.1, 25.9) 15.0 (11.0, 18.0) 40.1 (39.1, 41.0)
NINFEA, n = 2237, 2005–2010
(Italy)c
21.4 (19.9, 23.9) 12.0 (10.0, 15.0) 39.7 (38.9, 40.7)
PÉLAGIE, n = 1490, 2002–2005
(France)
21.6 (20.0, 23.8) NA 40.0 (39.0, 40.0)
PIAMA, n = 3459, 1996–1997
(The Netherlands)
22.2 (20.6, 24.3) 13.0 (10.0, 16.0) 40.0 (39.1, 40.9)
Piccolipiù, n = 3294, 2011–2015
(Italy)
21.7 (19.9, 24.2) 13.0 (10.0, 15.0) 39.0 (39.0, 40.0)
PRIDE Study, n = 1513, 2011–2015
(The Netherlands)
22.5 (20.7, 24.8) 14.0 (11.0, 17.0) 39.0 (39.0, 40.0)
Project Viva, n = 2106,
1999–2002 (United States)
23.5 (21.0, 27.3) 15.5 (12.3, 19.1) 39.7 (38.9, 40.6)
Raine Study, n = 2791,
1989–1992 (Australia)
21.3 (19.6, 23.7) NA 39.0 (38.0, 40.0)
REPRO_PL, n = 1409,
2007–2011(Poland)
21.5 (19.8, 23.8) 12.0 (9.0, 15.0) 39.0 (38.5, 40.0)
RHEA, n = 816, 2007–2008
(Greece)
23.3 (21.2, 26.2) 13.0 (10.0, 17.0) 38.0 (38.0, 39.0)
Slovak PCB study, n = 1048, 2002–2004 (Slovakia) 21.2 (19.5, 24.0) 13.0 (10.0, 17.0) 40.0 (39.0, 40.0)
STEPS, n = 1708, 2008–2010
(Finland)
23.0 (21.1, 26.1) 13.9 (10.8, 17.4) 40.0 (39.0, 41.0)
SWS, n = 3119, 1998–2007
(UK)
24.1 (21.9, 27.4) 11.9 (8.3, 15.7) 40.0 (39.0, 41.0)
Total group 22.7 (20.8, 25.4) 14.0 (11.0, 17.9) 40.0 (39.0, 41.0)
  1. aValues are expressed as medians (interquartile range). NA not available
  2. bSubset of participants with offspring body mass index available at 7 years by the time of data transfer (May 2015)
  3. cSubset of participants with follow-up completed at 4 years of child’s age by the time of data transfer (March 2015)