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Table 1 Socio-demographic characteristics of study population

From: Digital screen time and its effect on preschoolers’ behavior in China: results from a cross-sectional study

VariablesScreen timeTotal (n = 1897)Chi-sq /t test Valuep
60 min (n = 858)> 60 min (n = 1039)
Gender, n(%)   9.4120.035
 Male411 (39.7)623 (60.3)1034 (54.5)  
 Female447 (51.8)416 (48.2)863 (45.5)  
Ethnicity, n(%)   2.8640.249
 Han796 (44.3)999 (55.7)1795 (94.6)  
 Minorities62 (60.8)40 (39.2)102 (5.4)  
Age, n(%)   2.3860.812
 3–4 years192 (31.7)413 (68.3)605 (31.9)  
 4–5 years305 (42.8)408 (57.2)713 (37.6)  
 5–6 years361 (62.3)218 (36.7)579 (30.5)  
The only child, n(%)   3.6700.625
 Yes473 (56.7)361 (43.3)834 (44.0)  
 No385 (36.2)678 (63.8)1063 (56.0)  
Household location, n(%)   26.581< 0.001
 Rural210 (26.1)595 (73.9)805 (42.4)  
 Urban648 (59.3)444 (40.7)1092 (57.6)  
Maternal education, n(%)   10.9960.021
 High school or higher357 (55.8)283 (44.2)640 (33.7)  
 Secondary395 (43.3)517 (56.7)912 (48.1)  
 Primary school or lower106 (30.7)239 (69.3)345 (18.2)  
Marital status, n(%)   10.6810.016
 Married758 (53.4)66,246.6()1420 (74.9)  
 Divorced76 (18.1)348 (82.7)421 (22.2)  
 Widowed24 (42.9)32 (57.1)56 (3.0)  
Family income, n(%)   8.4720.034
  < 3000RMB107 (41.3)152 (58.7)259 (13.7)  
 3000-5000RMB348 (40.1)519 (59.9)867 (45.7)  
  > 5000RMB403 (52.3)368 (47.7)771 (40.6)  
Primary Caregiver, n(%)   20.89< 0.001
 Parents405 (50.8)393 (49.2)798 (42.1)  
 Grandparents312 (37.7)515 (62.3)827 (43.6)  
 Nanny or others141 (51.8)131 (48.2)272 (14.3)  
  1. Notes: Differences were determined by Chi-square tests, except for sleep duration which is by t-test; p-values < 0.05 were considered statistically significant, and the data were set in bold