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Table 1 Baseline characteristics

From: Planning is not equivalent to preparing, how Dutch women perceive their pregnancy planning in relation to preconceptional lifestyle behaviour change - a cross-sectional study

Demographics Cohort
(N = 1,077)
Unplanned/Ambivalent (N = 156) Planned (N = 921) P -value
Age (years)a 31.0 (29.0–33.0) 30.0 (27.0–33.0) 31.0 (29.0–33.0) 0.012
 Women under 20 years old 5 (0.5) 4 (2.6) 1 (0.1)  
 Women between 20–29 years old 362 (33.8) 58 (37.4) 304 (33.2)  
 Women between 30–39 years old 686 (64.0) 93 (60.0) 593 (64.7)  
 Women above 40 years old 19 (1.7) 0 (0.0) 19 (2.1)  
 Missing data 5 1 4  
Ethnic background     0.063
 Women with a Dutch ethical background 1,013 (94.7) 141 (91.6) 872 (95.2)  
 Women with a non-Dutch ethical background 57 (5.3) 13 (8.4) 44 (4.8)  
 Missing data 7 2 5  
Pre-pregnancy BMIa 23.2 (21.3–26.4) 23.5 (21.0–27.3) 23.2 (21.4–26.1) 0.658
 Women who are underweight (< 18.5 kg/m2) 20 (1.9) 5 (3.2) 15 (1.6)  
 Women with a healthy weight range (18.5—24.9 kg/m2) 699 (65.5) 88 (57.1) 611 (66.9)  
 Women who are overweight (25.0—29.9 kg/m2) 218 (20.4) 41 (26.6) 177 (19.4)  
 Women with obesity (≥ 30.0 kg/m2) 130 (12.2) 20 (13.0) 110 (12.0)  
 Missing 10 2 8  
Level of education      < 0.001
 Women with a low or moderate level of education 307 (28.7) 64 (41.6) 243 (26.5)  
 Women with a high level of education 763 (71.3) 90 (58.4) 673 (73.5)  
 Missing 7 2 5  
Parity     0.046
 Women who are nullipara 508 (47.4) 62 (40.0) 446 (48.6)  
 Women who are multipara 564 (52.6) 93 (60.0) 471 (51.4)  
 Missing 5 1 4  
Time to conception 3.0 (1.0 – 6.0) 1.0 (1.0–3.5) 3.0 (1.0–7.0)  < 0.001
 < 6 months 722 (70.3) 91 (80.5) 631 (96.0)  
 6—11 months 153 (14.9) 12 (10.6) 141 (15.5)  
 ≥ 12 months 152 (14.8) 10 (8.8) 142 (15.5)  
 Missing 50 43 7  
  1. a Median (interquartile range)