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Table 1

Participant characteristics

Total
(N = 386)
StudyBirth weight
CONCEPTT
(n = 200)
Sweden
(n = 186)
Statistic (P)LGA
(n = 232)
Non-LGA
(n = 154)
Statistic (P)
Age, years, mean (SD) 37.21 (1.87) 36.97 (1.69) 37.49 (2.03) −2.73 (1.00) 37.14 (1.63) 37.34 (2.19) 0.99 (0.84) 
European descent, n (%) 346 (90) 178 (89) 173 (93) −1.37 (0.17) 206 (89) 145 (94) 1.80 (0.07) 
Diabetes duration, years, mean (SD) 15.95 (7.89) 16.49 (7.66) 15.39 (8.12) 1.36 (0.91) 16.13 (7.89) 15.69 (7.89) −0.54 (0.70) 
Insulin delivery by pump, n (%) 144 (37) 90 (45) 54 (29) 3.24 (<0.01) 94 (41) 50 (32) −1.60 (0.11) 
First trimester HbA1c, mmol/mol, mean (SD) 56.6 (9.9) 57.1 (7.8) 55.7 (12.4) 1.30 (0.19) 56.9 (9.9) 56.1 (9.9) −0.71 (0.48) 
First trimester HbA1c, %, mean (SD) 7.3 (1.6) 7.4 (1.4) 7.2 (1.9) 1.30 (0.19) 7.4 (1.6) 7.3 (1.6) −0.71 (0.48) 
BMI, kg/m2, mean (SD) 25.8 (4.6) 25.7 (4.6) 25.9 (4.7) −0.34 (0.73) 25.9 (4.7) 25.4 (4.4) −0.33 (0.74) 
Primiparous, n (%) 187 (48) 98 (49) 89 (48) 0.22 (0.82) 66 (28) 121 (78) 0.08 (0.93 
Gestation birth, weeks, mean (SD) 37.2 (1.9) 36.9 (1.7) 37.5 (2.0) −3.18 (<0.01) 37.0 (1.6) 37.3 (2.2) −1.55 (0.12) 
Preterm delivery <37 weeks, n (%) 132 (34) 80 (40) 52 (28) 2.49 (0.01) 83 (36) 49 (32) −0.80 (0.42) 
Caesarean section, n (%) 224 (58) 137 (69) 87 (47) 4.32 (<0.01) 150 (65) 74 (48) −3.24 (<0.01) 
Birth weight, kg, mean (SD) 3.69 (0.72) 3.56 (0.71) 3.82 (0.72) 3.47 (<0.01) 4.00 (0.55) 3.00 (0.57) −12.94 (<0.01) 
Birth weight percentile, mean (SD)* 82.7 (24.7) 82.0 (25.8) 83.6 (23.4) −0.64 (0.52) 98.1 (2.67) 59.6 (25.0) −23.22 (<0.01) 
LGA ≥90th percentile, n (%) 232 (60) 122 (61) 110 (59) −1.17 (0.24) 225 (97) 7 (26) −14.73 (<0.01) 
Total
(N = 386)
StudyBirth weight
CONCEPTT
(n = 200)
Sweden
(n = 186)
Statistic (P)LGA
(n = 232)
Non-LGA
(n = 154)
Statistic (P)
Age, years, mean (SD) 37.21 (1.87) 36.97 (1.69) 37.49 (2.03) −2.73 (1.00) 37.14 (1.63) 37.34 (2.19) 0.99 (0.84) 
European descent, n (%) 346 (90) 178 (89) 173 (93) −1.37 (0.17) 206 (89) 145 (94) 1.80 (0.07) 
Diabetes duration, years, mean (SD) 15.95 (7.89) 16.49 (7.66) 15.39 (8.12) 1.36 (0.91) 16.13 (7.89) 15.69 (7.89) −0.54 (0.70) 
Insulin delivery by pump, n (%) 144 (37) 90 (45) 54 (29) 3.24 (<0.01) 94 (41) 50 (32) −1.60 (0.11) 
First trimester HbA1c, mmol/mol, mean (SD) 56.6 (9.9) 57.1 (7.8) 55.7 (12.4) 1.30 (0.19) 56.9 (9.9) 56.1 (9.9) −0.71 (0.48) 
First trimester HbA1c, %, mean (SD) 7.3 (1.6) 7.4 (1.4) 7.2 (1.9) 1.30 (0.19) 7.4 (1.6) 7.3 (1.6) −0.71 (0.48) 
BMI, kg/m2, mean (SD) 25.8 (4.6) 25.7 (4.6) 25.9 (4.7) −0.34 (0.73) 25.9 (4.7) 25.4 (4.4) −0.33 (0.74) 
Primiparous, n (%) 187 (48) 98 (49) 89 (48) 0.22 (0.82) 66 (28) 121 (78) 0.08 (0.93 
Gestation birth, weeks, mean (SD) 37.2 (1.9) 36.9 (1.7) 37.5 (2.0) −3.18 (<0.01) 37.0 (1.6) 37.3 (2.2) −1.55 (0.12) 
Preterm delivery <37 weeks, n (%) 132 (34) 80 (40) 52 (28) 2.49 (0.01) 83 (36) 49 (32) −0.80 (0.42) 
Caesarean section, n (%) 224 (58) 137 (69) 87 (47) 4.32 (<0.01) 150 (65) 74 (48) −3.24 (<0.01) 
Birth weight, kg, mean (SD) 3.69 (0.72) 3.56 (0.71) 3.82 (0.72) 3.47 (<0.01) 4.00 (0.55) 3.00 (0.57) −12.94 (<0.01) 
Birth weight percentile, mean (SD)* 82.7 (24.7) 82.0 (25.8) 83.6 (23.4) −0.64 (0.52) 98.1 (2.67) 59.6 (25.0) −23.22 (<0.01) 
LGA ≥90th percentile, n (%) 232 (60) 122 (61) 110 (59) −1.17 (0.24) 225 (97) 7 (26) −14.73 (<0.01) 

Results are given as n (%) or mean (SD). t test used where mean (SD) are given (t), and percentage used a two-sample test of proportion (z).

*

Birth weight was adjusted for infant sex and gestational age, maternal height, weight, parity, and ethnicity for singleton pregnancies using the Gestation Related Optimal Weight centile tool (15).

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