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. 2018 Aug 13;8(8):e021621. doi: 10.1136/bmjopen-2018-021621

Table 4.

Time of unintentional injuries among children and socioeconomic factors

Factors Overall (n=976) Unintentional injury
Daytime on a weekday %* Night-time on a weekday %* Holiday %* Total %*
(n=106) (n=64) (n=31) (n=201)
Family type
 Two parents 936 102 10.9 62 6.6 31 3.3 195 20.8
 Single parent 40 4 10.0 2 5.0 0 0.0 6 15.0
Age of mother
 <29 years 109 14 12.8 8 7.3 4 3.7 26 23.9
 30–39 years 579 65 11.2 32 5.5 18 3.1 115 19.9
 ≥40 years 288 27 9.4 24 8.3 9 3.1 60 20.8
Age of father
 <29 years 68 9 13.2 4 5.9 1 1.5 14 20.6
 30–39 years 462 52 11.3 26 5.6 15 3.2 93 20.1
 ≥40 years 446 45 10.1 34 7.6 15 3.4 94 21.1
Education of mother
 High school 277 29 10.5 20 7.2 9 3.2 58 20.9
 Business technical school or junior college 351 43 12.3 25 7.1 14 4.0 82 23.4
 College 348 34 9.8 19 5.5 8 2.3 61 17.5
Education of father
 High school 281 34 12.1 22 7.8 12 4.3 68 24.2
 Business technical school or junior college 150 19 12.7 8 5.3 3 2.0 30 20.0
 College 545 53 9.7 34 6.2 16 2.9 103 18.9
Number of children
 1 375 37 9.9 19 5.1 9 2.4 65 17.3
 2 447 50 11.2 34 7.6 17 3.8 101 22.6
 ≥3 154 19 12.3 11 7.1 5 3.2 35 22.7
Infant (<1 year old)
 Yes 170 23 13.5 7 4.1 1 0.6 31 18.2
 No 806 83 10.3 57 7.1 30 3.7 170 21.1
Older siblings (>6 years old)
 Yes 374 43 11.5 24 6.4 16 4.3 83 22.2
 No 602 63 10.5 40 6.6 15 2.5 118 19.6
Living with grandmother
 Yes 128 13 10.2 7 5.5 6 4.7 26 20.3
 No 848 93 11.0 57 6.7 25 2.9 175 20.6
Living with grandfather
 Yes 362 44 12.2 26 7.2 9 2.5 79 21.8
 No 614 62 10.1 38 6.2 22 3.6 122 19.9
Mother’s employment status
 Employed 391 35 9.0 33 8.4 16 4.1 84 21.5
 Unemployed 585 71 12.1 31 5.3 15 2.6 117 20.0
Father’s employment status
 Employed 964 104 10.8 63 6.5 31 3.2 198 20.5
 Unemployed 12 2 16.7 1 8.3 0 0.0 3 25.0
Use of sitter, kindergarten or nursery school
 Yes 197 16 8.1 21 10.7 11 5.6 48 24.4
 No 779 90 11.6 43 5.5 20 2.6 153 19.6
Type of housing
 House 516 59 11.4 34 6.6 17 3.3 110 21.3
 Apartment 460 47 10.2 30 6.5 14 3.0 91 19.8
Annual income
 <3 million 117 15 12.8 9 7.7 1 0.9 25 21.4
 3–5 million 366 42 11.5 23 6.3 13 3.6 78 21.3
 >5 million 493 49 9.9 32 6.5 17 3.4 98 19.9

*The proportion of the number of unintentional injuries to the overall number of each socioeconomic factor.