Background
Methods
Study design and setting
Participants
Characteristic | Total (N = 735) | Low wellbeinga
(n = 200) | High wellbeinga
(n = 535) |
---|---|---|---|
Age, years (M ± SD) | 32.0 ± 5.4 | 31.3 ± 5.9 | 32.3 ± 5.2 |
BMI, kg/m
2
(median (IQR)) | 33.4 (31.4–36.6) | 33.4 (31.7–36.9) | 33.4 (31.3–36.6) |
Pre-pregnancy BMI, kg/m
2
(median (IQR)) | 32.7 (30.5–35.8) | 33.0 (30.9–35.7) | 32.5 (30.2–35.8) |
Ethnicity, European descent (n (%)) | 638 (86.8) | 160 (80.0) | 478 (89.3) |
Education (n (%), total = 734) | |||
Low (no qualification/intermediate) | 89 (12.1) | 28 (14.0) | 61 (11.4) |
Medium (higher school/apprenticeship) | 233 (31.7) | 75 (37.5) | 158 (29.5) |
High (diploma/university) | 412 (56.1) | 96 (48.0) | 316 (59.1) |
Occupational status (n (%), total = 733) | |||
Home duties | 63 (8.6) | 21 (10.5) | 42 (7.9) |
Unemployed/not able to work | 109 (14.8) | 37 (18.5) | 72 (13.5) |
Working (fulltime/part-time/student) | 561 (76.3) | 141 (70.5) | 420 (78.5) |
Household composition, living with partner (n (%)) | 672 (91.4) | 177 (88.5) | 495 (92.5) |
Marital status, with partner (n (%), total = 734) | 690 (93.9) | 179 (89.5) | 511 (95.5) |
Shift work, yes (n (%), total = 730) | 149 (20.3) | 52 (26.0) | 97 (18.1) |
Measures
Mental health
Potential correlates
Statistical analysis
Results
Sample characteristics
Characteristic | Total (N = 735) | Low wellbeinga
(n = 200) | High wellbeinga
(n = 535) |
---|---|---|---|
Lifestyle | |||
Smoking behaviour, yes (n (%)) | 122 (16.6) | 37 (18.5) | 85 (15.9) |
Any alcohol consumption, yes (n (%)) | 43 (5.9) | 12 (6.0) | 31 (5.8) |
Sleep, hours per day (median (IQR), total = 734) | 8.0 (7.0–8.5) | 8.0 (7.0–9.0) | 8.0 (7.0–8.0) |
Insufficient sleep, days per month (median (IQR, total = 722) | 7.0 (3.0–15.0) | 15.0 (5.0–20.0) | 5.0 (2.0–15.0) |
Snoring, days per week (median (IQR, total = 714) | 0.0 (0–2.0) | 0.0 (0–3.0) | 0.0 (0–2.0) |
PPAQ, MET-h·wk.
−1
(median (IQR)) | |||
MVPA | 70.2 (34.7–127.8) | 74.7 (32.3–128.2) | 69.0 (35.5–127.8) |
SB | 42.0 (19.1–62.1) | 36.8 (18.6–61.1) | 43.2 (19.4–62.7) |
Biological | |||
First degree relative with diabetes, yes (n (%)) | 168 (22.9) | 48 (24.0) | 120 (22.4) |
Chronic hypertension, yes (n (%), total = 730) | 98 (13.3) | 30 (15.0) | 68 (12.7) |
Polycystic ovary syndrome, yes (n (%), total = 728) | 73 (9.9) | 24 (12.0) | 49 (9.2) |
Fasting plasma glucose, mmol/L (median (IQR), total = 727) | 4.6 (4.3–4.8) | 4.6 (4.3–4.8) | 4.6 (4.3–4.8) |
Fasting plasma insulin, mmol/L (median (IQR), total = 720) | 12.7 (9.8–17.5) | 13.1 (10.1–17.5) | 12.5 (9.5–17.4) |
HOMA-IR (median (IQR), total = 717) | 2.6 (1.9–3.6) | 2.7 (2.0–3.6) | 2.6 (1.9–3.6) |
Systolic blood pressure (median (IQR), total = 733) | 116 (109–123) | 114 (107–121) | 116 (110–124) |
Diastolic blood pressure (median (IQR), total = 733) | 72 (67–79) | 71 (67–77) | 72 (67–79) |
Resting heart rate (median (IQR), total = 694) | 79 (72–86) | 79 (71–87) | 79 (73–85) |
Pregnancy-specific | |||
Gestational week (median (IQR)) | 15.1 (13.4–16.7) | 14.9 (13.3–16.2) | 15.3 (13.6–17.0) |
Number of own children (n (%), total = 734) | |||
Zero | 366 (49.8) | 93 (46.5) | 273 (51.0) |
One | 256 (34.8) | 73 (36.5) | 183 (34.2) |
Two or more | 112 (15.2) | 34 (17.0) | 78 (14.6) |
Pregnant before, yes (n (%)) | 460 (62.6) | 136 (68.0) | 324 (60.6) |
Previous stillbirths/miscarriage, ≥ 1 (n (%), total = 445) | 200 (27.2) | 63 (31.5) | 137 (25.6) |
Previous fetal macrosomia, yes (n (%), total = 453) | 81 (11.0) | 22 (11.0) | 59 (11.0) |
Previous congenital malformation, yes (n (%), total = 454) | 16 (2.2) | 4 (2.0) | 12 (2.2) |
Previous gestational diabetes, yes (n (%), total = 455) | 36 (4.9) | 12 (6.0) | 24 (4.5) |
Pre to baseline weight gain, kg (median (IQR)) | 1.7 (−0.4–4.0) | 1.6 (−0.6–4.2) | 1.7 (−0.3–4.0) |
Perceptions and attitudeb (median (IQR)) | |||
Attitude to current weight (total = 729) | 16.0 (14.0–18.0) | 17.0 (14.0–19.0) | 16.0 (13.0–18.0) |
Self-efficacy (total = 730) | 35.0 (30.0–41.0) | 31.0 (27.0–38.0) | 37.0 (31.0–41.0) |
Social support (total = 731) | 16.0 (13.0–18.0) | 14.0 (10.0–17.0) | 16.0 (14.0–18.0) |
Outcome expectancy (total = 723) | 52.0 (46.0–58.0) | 52.0 (46.0–58.0) | 52.0 (46.0–58.0) |
Cambridge worry scale (median (IQR)) | |||
Total 13 items (total = 720) | 18.0 (12.0–26.0) | 24.0 (16.0–32.0) | 17.0 (12.0–24.0) |
Sociomedical (total = 731) | 5.0 (2.0–8.0) | 6.0 (2.0–10.0) | 5.0 (2.0–8.0) |
Socioeconomic (total = 733) | 4.0 (2.0–7.0) | 6.0 (3.0–9.0) | 4.0 (1.0–6.0) |
Health (total = 729) | 8.0 (5.0–12.0) | 10.0 (6.0–13.0) | 8.0 (5.0–11.0) |
Relationship (total = 729) | 0.0 (0–2.0) | 1.0 (0–3.0) | 0.0 (0–1.0) |
Bivariate analysis
Multivariate analysis
Odds Ratio, 95% CI | ||||
---|---|---|---|---|
Maternal characteristic
|
OR
| Lower | Upper |
p
|
Ethnicity (European) | .44 | .25 | .77 | < .01* |
Marital status (with partner) | .45 | .20 | 1.02 | .06 |
Shift work (yes) | 1.81 | 1.11 | 2.93 | .02* |
Occupational status (working = ref) | ||||
Not working | 1.39 | .80 | 2.42 | .24 |
Home duties | 1.28 | .59 | 2.78 | .53 |
Sleep h/d (6–9 h = ref)a
| ||||
≤ 6 h | .90 | .52 | 1.56 | .70 |
≥ 9 h | 1.11 | .68 | 1.84 | .67 |
Insufficient sleep d/m (low = ref)b
| ||||
Medium | 1.26 | .73 | 2.17 | .41 |
High | 3.30 | 1.96 | 5.55 | < .01* |
Perceptions and attitudec
| ||||
Attitude to current weight | 1.05 | .99 | 1.12 | .11 |
Self-efficacy | .95 | .92 | .98 | < .01* |
Social support | .94 | .90 | .99 | .03* |
Cambridge worry scale | ||||
Socioeconomic | 1.08 | 1.02 | 1.15 | .01* |
Health | 1.06 | 1.01 | 1.11 | .03* |
Relationship | 1.17 | 1.05 | 1.31 | < .01* |
Age (young = ref)d
| ||||
middle | .81 | .50 | 1.31 | .39 |
old | .90 | .54 | 1.49 | .68 |
BMI at baseline | 1.03 | .98 | 1.08 | .32 |
Weeks of gestation | .95 | .87 | 1.03 | .17 |
Pregnant before (yes) | 1.11 | .72 | 1.71 | .64 |
Systolic blood pressure | .99 | .97 | 1.01 | .21 |