Table 2 Results of univariate analysis between the control variables and the child’s frequency of sugary snack intake (n = 1332)

Gender

 Boy

365 (54.4)

366 (55.4)

0.721*

 Girl

306 (45.6)

295 (44.6)

Single child

 Yes

490 (73.0)

446 (67.5)

0.027*

 No

181 (27.0)

215 (32.5)

Caregiver

 Mother

591 (88.1)

550 (83.2)

0.021*

 Father

34 (5.0)

38 (5.8)

Grandfather or grandmother

46 (6.9)

73 (11.0)

Caregiver’s frequency of sugary snack intake

 <once/day

545 (81.2)

288 (43.6)

<0.001*

 ≥once/day

126 (18.8)

373 (56.4)

Marital status of parents

 Cohabiting

659 (98.2)

650 (98.3)

0.862*

 Not cohabiting

12 (1.8)

11 (1.7)

Mother’s education

 ≥college graduated

300 (44.7)

305 (46.1)

0.599*

 ≤high school graduated

371 (55.3)

356 (53.9)

Mother’s occupation

 Employer/professional

147 (21.9)

143 (21.6)

0.817*

 Employee/non-professional

395 (58.9)

399 (60.4)

 Unemployed

129 (19.2)

119 (18.0)

Father’s education

 ≥college graduated

327 (48.7)

328 (49.6)

0.746*

 ≤high school graduated

344 (51.3)

333 (50.4)

Father’s occupation

 Employer/professional

223 (33.2)

211 (31.9)

0.465*

 Employee/non-professional

426 (63.5)

420 (63.6)

 Unemployed

22 (3.3)

30 (4.5)

Family monthly income (per-capital)

 ≥5000 RMB

253 (37.7)

271 (41.0)

0.457*

 2000-4999 RMB

284 (42.3)

262 (39.6)

 <2000 RMB

134 (20.0)

128 (19.4)

Mean(SD)

Mean(SD)

Caregiver’s oral health knowledge score

9.3 (3.4)

9.0 (3.9)

0.161**

Caregiver’s oral health attitude score

6.3 (1.5)

6.1 (1.5)

0.016**