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Table 1 Demographic characteristics of participants

From: Gender differences in the association between self-reported stress and cigarette smoking in Korean adolescents

Characteristics

Total (%)

Girls (%)

Boys (%)

p

Age (years)

   

0.808

 12

697 (17.7)

317 (17.0)

380 (18.4)

 

 13

654 (16.6)

312 (16.7)

342 (16.6)

 

 14

658 (16.7)

313 (16.8)

345 (16.7)

 

 15

524 (13.3)

247 (13.2)

277 (13.4)

 

 16

507 (12.9)

251 (13.5)

256 (12.4)

 

 17

482 (12.3)

238 (12.8)

244 (11.8)

 

 18

408 (10.4)

188 (10.1)

220 (10.7)

 

Average household income (US$/month)

  

0.748

  < 1500

902 (23.0)

439 (23.5)

463 (22.4)

 

 1500–2499

1053 (26.8)

506 (27.1)

547 (26.5)

 

 2500–3500

771 (19.6)

359 (19.2)

412 (20.0)

 

  > 3500

1204 (30.6)

562 (30.1)

642 (31.1)

 

Place of residence

   

0.953

 Urban

3263 (83.0)

1550 (83.1)

1713 (83.0)

 

 Rural

667 (17.0)

316 (16.9)

351 (17.0)

 

Cigarette smoking

   

<0.001

 Yes

308 (7.8)

73 (3.9)

235 (11.4)

 

 No

3622 (92.2)

1793 (96.1)

1829 (88.6)

 

Stress

   

<0.001

 Very high

158 (4.0)

89 (4.8)

69 (3.3)

 

 High

911 (23.2)

480 (25.7)

431 (20.9)

 

 Medium

2250 (57.3)

1043 (55.9)

1207 (58.5)

 

 Low

611 (15.6)

254 (13.6)

357 (17.3)