Table 1 General characteristics.

From: Relationship between the actual fine dust concentration and media exposure that influenced the changes in outdoor activity behavior in South Korea

Variable

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

n (%)

n (%)

n (%)

n (%)

n (%)

n (%)

n (%)

n (%)

n (%)

n (%)

Sex

Male

2,615 (42.0)

974 (49.7)

937 (49.1)

944 (49.3)

431 (56.0)

449 (60.8)

448 (63.5)

2,020 (43.4)

553 (60.0)

545 (66.7)

Female

3,609 (58.0)

985 (50.3)

971 (50.9)

969 (50.7)

338 (44.0)

289 (39.2)

257 (36.5)

2,630 (56.6)

369 (40.0)

272 (33.3)

Age

20–39

2,109 (33.9)

786 (40.1)

750 (39.3)

738 (38.6)

145 (18.9)

164 (22.2)

153 (21.7)

1,172 (25.2)

201 (21.8)

172 (21.1)

40–64

2,802 (45.0)

905 (46.2)

933 (48.9)

971 (50.8)

454 (59.0)

429 (58.1)

391 (55.5)

2,305 (49.6)

504 (54.7)

463 (56.7)

6574

920 (14.8)

204 (10.4)

207 (10.8)

186 (9.7)

127 (16.5)

108 (14.6)

114 (16.2)

770 (16.6)

146 (15.8)

120 (14.7)

≥ 75

393 (6.3)

64 (3.3)

18 (0.9)

18 (0.9)

43 (5.6)

37 (5.0)

47 (6.7)

403 (8.7)

71 (7.7)

62 (7.6)

House-hold income

High

1,674 (26.9)

572 (29.2)

548 (28.7)

563 (29.4)

225 (29.3)

196 (26.60

184 (26.1)

1,379 (29.7)

258 (28.0)

222 (27.2)

Mid-high

1,634 (26.3)

570 (29.1)

533 (27.9)

563 (29.4)

194 (25.2)

206 (27.9)

187 (26.5)

1,283 (27.6)

223 (24.2)

208 (25.5)

Mod-low

1,635 (26.3)

471 (24.0)

520 (27.3)

534 (27.9)

222 (28.9)

178 (24.1)

191 (27.1)

1,1,369 (24.4)

244 (26.5)

196 (24.0)

Low

1,281 (20.6)

346 (17.7)

307 (16.1)

253 (13.2)

128 (16.6)

158 (21.4)

143 (20.3)

852 (18.3)

197 (21.4)

191 (23.4)

Education level

≥ College

1,609 (25.9)

583 (29.8)

673 (35.3)

685 (35.8)

190 (24.7)

214 (29.0)

196 (27.8)

1,532 (32.9)

316 (34.3)

285 (34.9)

High School

2,117 (34.0)

737 (37.6)

683 (35.8)

720 (37.6)

266 (34.6)

256 (34.7)

232 (32.9)

1,540 (33.1)

281 (30.5)

265 (32.4)

Middle School

706 (11.3)

221 (11.3)

201 (10.5)

205 (10.7)

106 (13.8)

89 (12.1)

92 (13.0)

507 (10.9)

104 (11.3)

99 (12.1)

≤ Elementary

School

1,792 (28.8)

418 (21.3)

351 (18.4)

303 (15.8)

207 (26.9)

179 (24.3)

185 (26.2)

1,071 (23.0)

221 (24.0)

168 (20.6)

Occupation

Non-Physical

1,853 (29.8)

709 (36.2)

759 (39.8)

728 (38.1)

268 (34.9)

283,938.3)

245 (34.8)

1,666 (35.8)

332 (36.0)

302 (37.0)

Physical

1,905 (30.6)

518 (26.4)

506 (26.5)

507 (26.5)

216 (28.1)

211 (28.6)

210 (29.8)

1,139 (24.5)

259 (28.1)

230 (28.3)

Inoccupation

2,466 (39.6)

732 (37.4)

643 (33.7)

678 (35.4)

285 (37.1)

244 (33.1)

250 (35.5)

1,845 (39.7)

331 (35.9)

285 (34.9)

Subjective health state

Good

2,605 (41.9)

861 (44.0)

707 (37.1)

697 (36.4)

202 (26.3)

180 (24.4)

179 (25.4)

1,356 (29.2)

229 (24.8)

164 (20.1)

Normal

2,045 (32.9)

658 (33.6)

865 (45.3)

920 (48.1)

419 (54.5)

408 (55.3)

373 (52.9)

2,361 (50.8)

475 (51.5)

460 (56.3)

Bad

1,574 (25.3)

440 (22.5)

336 (17.6)

296 (15.5)

148 (19.2)

150 (20.3)

153 (21.70

933 (20.1)

218 (23.6)

193 (23.6)

Total

6,224 (100.0)

1,959 (100.0)

1,908 (100.0)

1,913 (100.0)

769 (100.0)

738 (100.0)

705 (100.0)

4.650 (100.0)

922 (100.0)

817 (100.0)

  1. Frequency test: categorical variables were expressed as sample number and %.