Symptoms of patients (recorded at the time of consultation) after exposure to PIS (34 missing: multiple responses allowed)
| Symptoms | Total (n) of all PIS incidents | Not sprayed by police, number (%) | Sprayed by police, number (%) | Unadjusted odds ratio (95%CI) | p Value (Yates’s corrected) |
|---|---|---|---|---|---|
| Lachrymation | |||||
| No | 116 | 37 (64) | 68 (76) | 1 | |
| Yes | 44 | 21 (36) | 21 (24) | 0.54 (0.26 to 1.13) | p = 0.09 |
| Blurred vision | |||||
| No | 144 | 54 (93) | 79 (99) | 1 | |
| Yes | 16 | 4 (7) | 10 (11) | 1.70 (0.50 to 5.77) | p = 0.38 |
| Conjunctivitis | |||||
| No | 137 | 48 (83) | 83 (93) | 1 | |
| Yes | 23 | 10 (17) | 6 (7) | 0.34 (0.11 to 3.96) | p = 0.04 |
| Erythematous | |||||
| No | 123 | 54 (93) | 57 (64) | 1 | |
| Yes | 37 | 4 (7) | 32 (36) | 7.57 (2.34 to 24.51) | p⩽0.001 |
| Blisters | |||||
| No | 143 | 56 (97) | 74 (83) | 1 | |
| Yes | 17 | 2 (3) | 15 (17) | 5.67 (1.20 to 26.84) | p = 0.01 |
| Oedema | |||||
| No | 154 | 57 (98) | 84 (94) | 1 | |
| Yes | 6 | 1 (2) | 5 (6) | 3.39 (0.37 to 30.34) | p = 0.24 |
| Shortness of breath | |||||
| No | 149 | 53 (91) | 83 (93) | 1 | |
| Yes | 11 | 5 (9) | 6 (7) | 0.76 (0.22 to 2.65) | p = 0.67 |
| Burning sensation | |||||
| No | 120 | 43 (74) | 64 (72) | 1 | |
| Yes | 40 | 15 (26) | 25 (28) | 1.12 (0.52 to 2.37) | p = 0.76 |
| Other | |||||
| No | 126 | 45 (78) | 70 (79) | 1 | |
| Yes | 34 | 13 (22) | 19 (21) | 0.94 (0.42 to 2.09) | p = 0.87 |
| Adverse outcome | |||||
| No | 58 | 30 (52) | 24 (27) | 1 | |
| Yes | 102 | 28 (48) | 65 (73) | 2.90 (1.41 to 5.97) | p = 0.002 |
| Referred for further treatment to another specialist department | |||||
| No | 57 | 36 (63) | 43 (47) | 1 | |
| Yes | 91 | 21 (37) | 48 (53) | 1.91 (0.96 to 3.08) | p = 0.06 |