Table 2. Changes Over Time for Family Members of Patients Who Underwent Gastric Bypass Surgery
Family MembersBaseline3 Months6 Months1 YearP Value (Over Time)
Partners
    Body weight (kg)90.58 (18.78)88.72 (18.51)*90.21 (16.3)*88.87 (16.69)*<.01
    BMI (kg/m2)28.49 (5.40)27.68 (5.40)*28.03 (4.86)*28.00 (5.72)*<.01
    Eating behavior†
        Emotional eating1.64 (0.59)1.61 (0.67)1.60 (0.56)1.69 (0.67).623
        External eating2.68 (0.47)2.59 (0.48)2.56 (0.54)2.61 (0.54).410
        Restrained eating2.50 (0.91)2.64 (0.95)2.55 (0.82)2.62 (0.85).244
Children ≥18 years old
    Body weight (kg)82.88 (20.87)83.65 (19.23)86.56 (19.62)80.90 (16.42).206
    BMI (kg/m2)25.86 (4.79)25.10 (4.33)25.98 (5.39)24.99 (3.67).176
    Eating behavior†
        Emotional eating2.02 (0.87)2.18 (0.95)1.79 (0.69)2.14 (0.87).492
        External eating2.72 (0.55)2.79 (0.68)2.76 (0.49)2.87 (0.56).765
        Restrained eating2.41 (1.05)2.64 (1.06)2.30 (1.11)2.44 (1.11).115
Children 12–17 years old
    Body weight (kg)61.31 (11.95)60.10 (11.36)62.74 (13.86)64.45 (13.77)<.05
    BMI z score‡ (kg/m2)0.84 (0.96)0.57 (0.87)0.51 (1.32)0.60 (1.23).191
    Eating behavior†
        Emotional eating1.81 (0.62)1.62 (0.25)1.86 (0.89)1.48 (0.39).225
        External eating2.57 (0.56)2.57 (0.55)2.79 (0.46)2.64 (0.42).765
        Restrained eating1.95 (0.79)1.80 (0.75)1.88 (0.92)1.84 (0.69.802

  • Data are mean (standard deviation).

  • ↵* P < .05 compared with baseline value.

  • ↵† Eating behavior was assessed using the Dutch Eating Behavior Questionnaire.

  • ↵‡ Body mass index (BMI) z score is the standard deviation score of BMI according to Dutch reference values.