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. 2021 Jan 27;21:223. doi: 10.1186/s12889-021-10240-x

Table 1.

Characteristics of Participants (N = 3373)

Characteristics Statistics
Children
 Children’s age (years), mean (SD) 4.24 (0.67)
  Three-year-old, n (%) 464 (13.76)
  Four-year-old, n (%) 1652 (48.98)
  Five-year-old, n (%) 1257 (37.27)
 Children’s gender, n (%)
  Boy 1765 (52.33)
  Girl 1608 (47.67)
 Children’s grades, n (%)
  The first year of kindergarten 1736 (51.47)
  The second year of kindergarten 1637 (48.53)
 Children’s BMI (kg/m2), M (Q1, Q2) 15.34 (14.49, 16.27)
 Children’s weight status, n (%)
  Underweight or normal weight 3097 (91.82)
  Overweight 179 (5.31)
  Obesity 97 (2.88)
 Relationships between participating guardians and children, n (%)
  Father-child 789 (23.39)
  Mother-child 2395 (71.01)
  Other relationships 160 (4.74)
  Data missing 29 (0.86)
Children’s parents
 Parents’ agea (years), mean (SD)
  Father 37.12 (4.39)
  Mother 35.16 (3.45)
 Parents’ highest level of educational attainment, n (%)
  Father
   Technical college or below 778 (23.07)
   University 1600 (47.44)
   Postgraduate or above 956 (28.34)
   Data missing 39 (1.16)
  Mother
   Technical college or below 657 (19.48)
   University 1789 (53.04)
   Postgraduate or above 882 (26.15)
   Data missing 45 (1.33)
 Parents’ occupations, n (%)
  Father
   Administrative 785 (23.27)
   Technician 839 (24.87)
   Clerk 1048 (31.07)
   Other occupation 623 (18.47)
   Data missing 78 (2.31)
  Mother
   Administrative 652 (19.33)
   Technician 746 (22.12)
   Clerk 1245 (36.91)
   Other occupation 639 (18.94)
  Data missing 91 (2.70)
 Parents’ weight status, n (%)
  Father
   Underweight or normal weight 1276 (37.83)
   Overweight 1394 (41.33)
   Obesity 548 (16.25)
   Data missing 155 (4.60)
  Mother
   Underweight or normal weight 2646 (78.45)
   Overweight 507 (15.03)
   Obesity 93 (2.76)
   Data missing 127 (3.77)

Abbreviations: SD: standard deviation; BMI: body mass index; M (Q1, Q2): median (25th and 75th percentiles)

Note: aMissing data exists