Table 1 Characteristics of study sample included in final data analysis

From: App-based prevention of preschooler unintentional injury in rural China: a cluster randomized controlled trial

 

Intervention group (n = 1662)

Control group (n = 1676)

Individual level

Preschooler age in years (\(\bar{x}\pm s\))

4.8 ± 1.0

4.9 ± 1.0

Preschooler sex, n (%)

 Male

859 (51.7)

822 (49.0)

 Female

803 (48.3)

854 (51.0)

Caregiver age in years (\(\bar{x}\pm s\))

36.9 ± 8.8

37.6 ± 9.0

Caregiver sex, n (%)

 Male

386 (23.2)

369 (22.0)

 Female

1276 (76.8)

1307 (78.0)

Caregiver relationship to child, n (%)

 Father

318 (19.1)

295 (17.6)

 Mother

1081 (65.1)

1104 (65.9)

 Grandparent

223 (13.4)

235 (14.0)

 Other

40 (2.4)

42 (2.5)

Caregiver education, n (%)

 College and above

471 (28.3)

519 (31.0)

 Senior high school

616 (37.1)

586 (35.0)

 Junior high school and below

575 (34.6)

571 (34.0)

Household size, n (%)

 6 people and above

382 (23.0)

393 (23.5)

 4–5 people

948 (57.0)

949 (56.6)

 3 people and below

332 (20.0)

334 (19.9)

Frequency of using other parenting apps, n (%)

 7 times or more per week

53 (3.2)

57 (3.4)

 3–6 times per week

169 (10.2)

154 (9.2)

 1–2 times per week

375 (22.5)

407 (24.3)

 Once every two weeks or less

405 (24.4)

440 (26.2)

 None

660 (39.7)

618 (36.9)

Learning about child injury prevention in the 3 months, n (%)

 Yes

1024 (61.6)

1050 (62.6)

 No

638 (38.4)

626 (37.4)

Cluster level

Number of preschools

12

12

Cluster size, median (P25-P75)

142 (81–194)

142 (118–196)