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Table 1 Descriptive characteristics for children and their mothers (n = 530)

From: The association between maternal-child physical activity levels at the transition to formal schooling: cross-sectional and prospective data from the Southampton Women’s Survey

  Cross-sectional (n = 530) Prospective (n = 170)
Childrena Mothersb Children Mothers
Female (n (%)) 257 (48.5)   85 (50)  
Age (years) 6.7 (0.3) 37.2 (3.6) 6.7 (0.3) 37.7 (3.7)
BMI (kg/m2) 16.1 (1.7) 24.4 (9.2) 16.2 (1.7) 26.7 (5.2)
Weight Status (n (%))
 Underweight 30 (5.7)   7 (4.2)  
 Normal weight 408 (77.9) 264 (50.6) 130 (78.3) 56 (42.4)
 Overweight/ obese 86 (16.4) 257 (49.3) 29 (17.5) 78 (57.5)
BMI z-score 0.25 (1.0)   0.32 (1.0)  
Age mother left full-time education (n (%))
< 16 years   191 (36.1)   55 (32.4)
 17–18 years   196 (37.1)   65 (38.2)
 > 18 years   142 (26.8)   50 (29.4)
Other children in the home (n (%))
 None 218 (41.4)   71 (41.8)  
 Older only 138 (26.0)   40 (23.5)  
 Younger only 135 (25.5)   46 (27.1)  
 Older and younger 39 (7.4)   13 (7.7)  
  1. All values are mean (sd) unless stated otherwise; sd standard deviation, a Inclusive of 170 children in prospective cohort, BMI Body Mass Index; a Children included in the longitudinal analyses (compared with those providing valid activity data at age 6 only) were more likely to have a higher BMI at age 4 (16.8 vs. 16.1, p = 0.003) and be older at age 6 (6.7 vs. 6.6 years, p = 0.001); b Mothers providing data at both time points (vs. aged 6 only) were more likely to have a higher BMI (26.7 vs. 24.4 kg/m2, p = 0.03) and have left school later (29.4% vs. 26.8% leaving school after 18 years p = 0.04)