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Table 1 Socio-demographic characteristics

From: Reliability and validity of the Japanese version of the Pediatric Quality of Life Inventory Infant Scales

  N = 183
Infants aged 1–12 months (n = 50) Infants aged 13–24 months (n = 95) Infants aged 25–30 months (n = 38)
n or mean % or SD Range n or mean % or SD Range n or mean % or SD Range
Child
Gender
 Male 27 54.0   47 49.5   23 60.5  
 Female 23 46.0   48 50.5   15 39.5  
Place at where a child spends daytime
 Home 32 64.0   18 18.9   4 10.5  
 Day care center 17 34.0   75 78.9   34 89.5  
 Other 1 2.0   1 1.1   0 0.0  
 Missing 0 0.0   1 1.1   0 0.0  
Presence of diseasea
 Acute disease 25 50.0   50 52.6   27 71.1  
 Chronic disease 4 8.0   14 14.7   6 15.8  
 Other disease 4 8.0   13 13.7   3 8.9  
Parents          
Age (years) 35.7 5.3 23–52 35.8 5.4 22–55 35.3 4.3 26–45
Familial relations to children
 Mother 46 92.0   83 87.4   37 97.4  
 Father 4 8.0   12 12.6   1 2.6  
Subjective opinion of current economic status
 Very affluent 6 12.0   3 3.2   0 0.0  
 Reasonably affluent 15 30.0   23 24.2   8 21.1  
 Normal 24 48.0   58 61.1   29 76.3  
 Not reasonably affluent 4 8.0   9 9.5   1 2.6  
 Not very affluent 1 2.0   2 2.1   0 0.0  
K6 3.0 3.7 0–24 3.2 3.6 0–15 2.2 3.4 0–14
  1. K6, Kessler-6 questionnaire (range 0–24); SD, standard deviation
  2. aMultiple answers allowed