The effect of a prenatal lifestyle intervention on glucose metabolism: results of the Norwegian Fit for Delivery randomized controlled trial

Table 1 Baseline characteristics of participants

	Intervention (n = 281)		Control (n = 276)
	Mean	SD	Mean	SD
Age at trial inclusion (years)	28.0	4.2	28.0	4.5
Gestational age at inclusion (weeks)	15.4	2.7	15.6	2.5
Pre-pregnancy weight (kg)	67.5	11.9	67.3	12.4
Height (cm)	168.7	5.6	168.9	6.7
Pre-pregnancy BMI (kg/m²)	23.7	4.0	23.6	3.8
Inclusion weight (kg)^a	69.8	12.2	70.1	12.6
Glucose, fasting (mmol/l)	4.43	0.38	4.45	0.40
C-Reactive Protein (mg/l)	4.38	4.26	4.36	4.04
	N	%	N	%
BMI category, pre-pregnancy
Underweight	2	0.7	3	1.1
Normal-weight	193	68.7	201	72.8
Overweight	64	22.8	52	18.8
Obese	22	7.8	20	7.2
Education level^b
12 years or less	84	30.0	89	32.4
< 4 years of higher education	101	36.1	84	30.5
≥ 4 years of higher education	95	35.5	102	37.1
Occupation^c
Employed outside the home	230	81.9	239	86.9
Student	33	11.7	16	5.8
Unemployed	7	2.5	13	4.7
Long-term sick leave	6	2.1	4	1.4
Homemaker	5	1.8	3	1.1
Cohabitation^c
Husband/boyfriend/partner	274	97.5	263	95.6
Other	7	2.5	12	4.4
Household Income (NKR)^d
≤ 400,000	89	31.7	84	30.8
401–700,000	79	28.1	76	27.8
> 700,000	99	35.2	93	34.1
Refrained from response	14	5.0	20	7.3
Smoking status^c
Smoker	8	2.8	13	4.7
Non-smoker	273	97.2	262	95.3

^aWeight at inclusion was missing for 8 (2 control and 6 intervention) participants
^bEducation information missing for 1 intervention and 1 control participant
^cInformation on occupation, cohabitation and smoking missing for 1 control participant
^dIncome information missing for 3 control participants

ISSN: 1471-2393