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Table 1 Characteristics of the study population

From: An assessment of the construct validity of the Child Health Utility 9D-CHN instrument in school-aged children: evidence from a Chinese trial

Characteristics  
Gender: n (%)  
 Male 831 (54.0)
 Female 708 (46.0)
Age (years): mean (SD) 6.6 (0.42)
Measures of socio-economic status  
Maternal university education: n (%)  
 Yes 963 (62.6)
 No 576 (37.4)
Maternal education level: n (%)  
 1 School education 296 (19.2)
 2 Occupation college 280 (18.2)
 3 University undergraduate education 847 (55.1)
 4 University postgraduate education 116 (7.5)
Paternal university education: n (%)  
 Yes 1005 (65.3)
 No 534 (34.7)
Paternal education level: n (%)  
 1 School education 247 (16.2)
 2 Occupation college 287 (18.6)
 3 University undergraduate education 824 (53.5)
 4 University postgraduate education 181 (11.7)
Weight status: n (%)  
 Underweight 75 (4.9)
 Healthy weight 1189 (77.2)
 Overweight 165 (10.7)
 Obese 110 (7.2)
Underweight/Healthy weight compared to Overweight/Obese: n (%)  
 Underweight/Healthy weight 1264 (82.1)
 Overweight/Obese 275 (17.9)
BMI: mean (SD) 15.45 (2.13)
 BMI z-score: mean (SD) − 0.12 (1.29)
CHU-9D-CHN mean utility value (SD)  
 CHU-9D: using UK tariff 0.937 (0.068)
 CHU-9D: using Chinese tariff 0.920 (0.094)
PedsQL mean score (SD)  
 PedsQL Total scale score 82.92 (11.21)
 PedsQL Physical functioning 83.67 (13.15)
 PedsQL Emotional functioning 81.69 (17.54)
 PedsQL Social functioning 84.09 (15.30)
 PedsQL School functioning 81.77 (15.36)
  1. BMI body mass index, SD standard deviation