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Table 3 Proportions of respondents reporting health changes by intensity of exposure

From: Health issues and healthcare utilization among adults who reported exposure to tear gas during 2020 Portland (OR) protests: a cross-sectional survey

Delayed health issues categories

Participants reporting health issues

by intensity of exposure

Test of trend

1 day of exposure

N = 398

2–4 days of exposure

N = 1391

≥5 days of exposure

N = 468

n

%a

n

%a

n

%a

p value

Z value

Any physical or psychological health issues

309

77.6

1215

87.3

420

89.7

< 0.01

− 3.8

Any physical health issuesa

290

72.9

1126

80.9

407

87

< 0.01

−4.7

 Eye

91

22.9

356

25.6

147

31.4

< 0.01

−3.0

 Nose

62

15.6

257

18.5

118

25.2

< 0.01

−3.8

 Mouth

59

14.8

232

16.7

87

18.6

0.16

−1.4

 Lungs and/or Chest

126

31.7

648

46.6

289

61.8

< 0.01

−8.3

 Skin

57

14.3

294

21.1

144

30.8

< 0.01

−5.8

 Gastrointestinal

77

19.3

358

25.7

203

43.4

< 0.01

−8.5

 Head

91

22.9

385

27.7

150

32.1

< 0.01

−2.8

 Menstrualb

116

39.7

566

54.8

217

66.6

< 0.01

−6.0

Psychological health issues

204

51.3

1041

74.8

390

83.3

< 0.01

−8.2

  1. a Total count for the delayed physical issues includes menstrual health/breast/chest health
  2. b Denominators for exposure of 1 day, 2–4 days, and ≥ 5 days were 292; 1032, 326, respectively, because of the eligibility criteria for this outcome (see Table 4 for details)