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Table 3 Characteristics of the study population (n = 91)

From: Childhood immunizations in China: disparities in health care access in children born to North Korean refugees

Variable   Mean (SD) or n (%)
Socio-demographic   
Gender of Child   
  Male 43 (47.3 %)
  Female 48 (52.7 %)
Age (years)   9.5 (3.1)
  <8 13 (14.3 %)
  8-11 51 (56.0 %)
  ≥12 27 (29.7 %)
Total number of interracial children   91 (100.0 %)
Birthplace   
  Heilong Jiang 30 (33.0 %)
  Liaoning 17 (29.7 %)
  Jilin 34 (37.3 %)
Primary caregiver   
  Parent 74 (81.3 %)
  Grandparent 4 (4.4 %)
  Other relative 13 (14.3 %)
Mother’s age (years)   37.2 (5.8)
  <40 60 (65.9 %)
  ≥41 31 (34.1 %)
Father’s age (years)   41.1 (6.3)
  <40 33 (36.3 %)
  ≥41 58 (63.7 %)
Father’s region of origin   
  Han 63 (69.2 %)
  Chinese-Korean (Chosun) 28 (30.8 %)
Father’s educational level   
  No formal education 8 (8.8 %)
  Elementary school 74 (81.3 %)
  Middle school 7 (7.7 %)
  High school 2 (2.2 %)
Annual income (Yuana)   3544.0 (1837.3)
  <3000 36 (39.6 %)
  3000-6000 48 (52.7 %)
  ≥6000 7 (7.7 %)
Siblings   
  No 74 (81.3 %)
  Yes 17 (18.6 %)
Health-related   
Health condition at birth (Reported by caregiver)  
  Poor 11 (12.0 %)
  Good 80 (88.0 %)
Present health condition (Reported by caregiver)  
  Very poor 1 (1.1 %)
  Poor 4 (4.4 %)
  Good 70 (76.9 %)
  Very good 16 (17.6 %)
Vaccination diary available   
  No 65 (71.4 %)
  Yes 26 (28.6 %)
Maternal history of miscarriage   
  No 78 (85.7 %)
  Yes 13 (14.3 %)
  1. a1 US Dollar was equivalent to approximately 6.62 Yuan at time of data collection