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Table 1 Baseline characteristics of participants

From: Mighty Mums – a lifestyle intervention at primary care level reduces gestational weight gain in women with obesity

Variable Intention-to-treat population Per-protocol population
  Intervention
Mean (SD)
Median (range)
(n = 438)
Controls
Mean (SD)
Median (range)
(n = 871)
Intervention
Mean (SD)
Median (range)
(n = 116)
Control
Mean (SD)
Median (range)
(n = 845)
Weeks pregnant at first pregnancy visit 8.6 (2.5)
8.2 (3–20)
7.9 (2.3)
7.9 (5–18)
8.3 (2.1)
7.9 (4–15)
7.9 (2.3)
7.7 (5–18)
Age, years 30.9 (5.5)
30.5 (18.2–47.4)
30.7 (5.1)
30.4 (17.6–46.1)
30.7 (5.4)30.1 (20.7–47.4) 30.7 (5.1)
30.3 (17.6–46.1)
Weight at first pregnancy visit, transformed
to week 15, kg
94.0 (13.9)
92.0 (63.0–152.0)
93.4 (11.5)
92.0 (69.0–153.0)
94.1 (14.7)
91.0 (67.0–152.0)
93.3 (11.3)
92.0 (69.0–144.0)
Height at first pregnancy visit, cm 165.8 (7.5)
165.0 (133.0–187.0)
n = 437
166.4 (6.2)
166.0 (148.0–185.0)
165.8 (7.2)
165.0 (148.0–180.0)
166.4 (6.2)
166.0 (148.0–185.0)
BMI at first pregnancy visit, transformed to week 15 34.1 (4.0)
33.3 (27.7–57.2)
n = 437
33.7 (3.2)
32.8 (29.7–50.0)
34.1 (3.7)
33.1 (29.3–49.6)
33.6 (3.1)
32.8 (29.7–47.0)
  n (%) n (%) n (%) n (%)
Overweight
BMI < 30.0a
28 (6.4) 5 (0.6) 6 (5.2) 5 (0.6)
Obese Class I
BMI 30.0–34.9
271 (62.0) 611 (70.1) 74 (63.8) 596 (70.5)
Obese Class II
BMI 35.0–39.9
98 (22.4) 210 (24.1) 25 (21.6) 204 (24.1)
Obese Class III
BMI ≥40
40 (9.2) 45 (5.2) 11 (9.5) 40 (4.7)
Primipara 204 (46.6) 338 (38.8) 63 (54.3) 326 (38.6)
Born outside Sweden 131 (29.9) 92 (10.6) 35 (30.2) 89 (10.5)
Use of translator 46 (10.5) 17 (2.0) 14 (12.1) 17 (2.0)
Education
≤12 yearsb
269 (61.6) 564 (64.8) 68 (58.6) 545 (64.6)
Other than
employedc
151 (34.5) 194 (22.3) 43 (37.1) 187 (22.2)
Use of nicotine 33 (7.5) 79 (11.0) 8 (6.9) 77 (11.1)
  1. Values represent mean (SD) and median (range) for continuous variables, and n (%) for categorical variables
  2. aDue to clinical routines, BMI has been rounded off and some women having a true BMI less than 30 have been included, n = 37
  3. bBelow university studies
  4. cBeing subsidised by parental leave, unemployment benefits, student loans, or social security