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Table 3 Comparisons of oral health-related variables between various experiences of parental migration (N = 1085)

From: Impact of parental migration on oral health outcomes of left-behind school-aged children in Luchuan, southern China

Variables

Parental migration

Types of migration

Duration of migration

Non-LBC

N (%)

LBC

N (%)

Father-only

N (%)

Mother-only

N (%)

Both parent

N (%)

≤ 6 months

N (%)

<  6 months

N (%)

 

424

661

213

89

359

369

292

Gender

 Boy

218 (51.4)

318 (48.1)

91 (42.7)

46 (51.7)

181 (50.4)

169 (45.8)

149 (51.0)

 Girl

206 (48.6)

343 (51.9)

122 (57.3)

43 (48.3)

178 (49.6)

200 (54.2)

143 (49.0)

Age (years old)

 8–9

137 (32.3)

256 (38.7)

80 (30.8)

36 (40.4)

140 (39.0)

136 (36.9)

120 (41.1)

 10

101 (23.8)

157 (23.8)

101 (38.7)

22 (24.7)

82 (22.8)

84 (22.8)

73 (25.0)

 11–12

186 (43.9)

248 (37.5)

80 (30.8)

31 (34.8)

137 (38.2)

149 (40.4)

99 (33.9)

Frequency sugary snack intake

  < once/day

288 (67.9)

462 (69.9)

154 (72.3)

62 (69.7)

246 (68.5)

258 (69.9)

204 (69.9)

  ≥ once/day

136 (32.1)

199 (30.1)

59 (27.7)

27 (30.3)

113 (31.5)

111 (30.1)

88 (30.1)

Frequency of sugary beverages intake

  < once/day

299 (70.5)

490 (74.1)

159 (56.0)

65 (54.6)

266 (74.1)

280 (75.9)

210 (71.9)

  ≥ once/day

125 (29.5)

171 (25.9)

125 (44.0)

54 (45.4)

93 (25.9)

89 (24.1)

82 (28.1)

Frequency of drink with added sugar intake

  < once/day

332 (78.3)

513 (77.6)

152 (71.4)

73 (82.0)

288 (80.2)

283 (76.7)

230 (78.8)

  ≥ once/day

92 (21.7)

148 (22.4)

61 (28.6)

16 (18.0)

71 (19.8)

86 (23.3)

62 (21.2)

Tooth brushing frequency

 Not every day

33 (7.8)

72 (10.9)

23 (10.8)

10 (11.2)

39 (10.9)

41 (11.0)

31(10.6)

 Once/day

259 (61.1)

399 (60.4)

115 (54.0)

59 (66.3)

225 (62.7)

216 (58.5)

183 (62.7)

  ≥ twice/day

132 (31.1)

190 (28.7)

75 (35.2)

20 (22.5)

95 (26.5)

112 (30.4)

78 (26.7)

  1. All the groups with different experiences of parental migration were compared between LBC and non-LBC. All p-values were > 0.05. The comparisons within different experiences of parental migration were not statistically significant (All p-values > 0.05). The exact p-values for all the comparisons were listed in the Additional file 1: Table S1