Table 2 Crude and adjusted a prevalence odds ratio (POR) and corresponding 95% confidence interval (CI) for specific symptoms by exposure category group
From: Acute health effects of the Tasman Spirit oil spill on residents of Karachi, Pakistan
Symptoms | N | Pr b | Crude POR | 95% CI | Adjusted POR | 95% CI |
|---|---|---|---|---|---|---|
Ocular Symptoms | ||||||
Sore eyes | ||||||
Control B | 12 | 11.9 | 1.0 | --- | 1.0 | --- |
Control A | 20 | 24.1 | 2.4 | 1.1–5.2 | 2.4 | 1.0–5.6 |
Exposed | 132 | 61.1 | 11.7 | 6.0–22.6 | 11.9 | 5.7–24.9 |
Itchy eyes | ||||||
Control B | 16 | 15.8 | 1.0 | --- | 1.0 | --- |
Control A | 18 | 21.7 | 1.5 | 0.7–3.1 | 1.5 | 0.7–3.4 |
Exposed | 118 | 54.6 | 6.4 | 3.5–11.6 | 5.9 | 3.0–11.7 |
Watery eyes | ||||||
Control B | 13 | 12.9 | 1.0 | --- | 1.0 | --- |
Control A | 16 | 19.3 | 1.6 | 0.7–3.6 | 1.5 | 0.6–3.5 |
Exposed | 103 | 47.7 | 6.2 | 3.2–11.7 | 5.3 | 2.6–10.9 |
Red eyes | ||||||
Control B | 8 | 7.9 | 1.0 | --- | 1 | --- |
Control A | 12 | 14.5 | 2.0 | 0.8–5.1 | 2.4 | 0.9–6.6 |
Exposed | 90 | 41.7 | 8.3 | 3.8–18.0 | 8.5 | 3.6–19.7 |
Respiratory symptoms | ||||||
Dry throat | ||||||
Control B | 25 | 24.8 | 1.0 | --- | --- | |
Control A | 22 | 26.5 | 1.1 | 0.6–2.1 | 0.9 | 0.5–1.9 |
Exposed | 140 | 64.8 | 5.6 | 3.3–9.5 | 4.7 | 2.5–8.6 |
Scratchy throat | ||||||
Control B | 22 | 21.8 | 1.0 | --- | 1.0 | --- |
Control A | 18 | 21.7 | 1.0 | 0.5–2.0 | 0.8 | 0.4–1.7 |
Exposed | 129 | 59.7 | 5.3 | 3.1–9.2 | 3.5 | 1.9–6.5 |
Sore throat | ||||||
Control B | 16 | 15.8 | 1.0 | --- | 1.0 | --- |
Control A | 18 | 21.7 | 1.5 | 0.7–3.1 | 1.2 | 0.5–2.7 |
Exposed | 113 | 52.3 | 5.8 | 3.2–10.6 | 3.8 | 1.9–7.4 |
Cough | ||||||
Control B | 18 | 17.8 | 1.0 | --- | 1.0 | --- |
Control A | 12 | 14.5 | 0.8 | 0.4–1.7 | 0.6 | 0.2–1.4 |
Exposed | 94 | 43.5 | 3.6 | 2.0–6.3 | 2.3 | 1.2–4.4 |
Shortness of breath after spill c | ||||||
Control B | 2 | 1.0 | --- | --- | ||
Control A | 15 | 18.1 | 10.9 | 2.4–49.3 | ||
Exposed | 110 | 50.9 | 51.4 | 12.4–213.6 | ||
Difficulty in breathing after spill | ||||||
Control B | 0 | 0.0 | --- | --- | ||
Control A | 1 | 1.2 | ||||
Exposed | 22 | 10.2 | ||||
Wheezing after spill | ||||||
Control B | 0 | 0 | --- | --- | ||
Control A | 8 | 9.6 | ||||
Exposed | 42 | 19.4 | ||||
Wheezing with shortness of breath after spill | ||||||
Control B | 0 | 0 | --- | --- | ||
Control A | 1 | 1.2 | ||||
Exposed | 13 | 6.0 | ||||
Skin symptoms | ||||||
Itchy Skin c | ||||||
Control B | 5 | 5.0 | 1.0 | --- | --- | |
Control A | 6 | 7.2 | 1.5 | 0.4–5.1 | ||
Exposed | 75 | 34.7 | 10.2 | 4.0–26.1 | ||
Skin irritation c | ||||||
Control B | 4 | 4.0 | 1.0 | --- | --- | |
Control A | 2 | 2.4 | 0.6 | 0.1–3.4 | ||
Exposed | 54 | 25.0 | 8.1 | 2.8–23.0 | ||
Nervous system symptoms | ||||||
Nausea/vomitingc | ||||||
Control B | 7 | 6.9 | 1.0 | --- | --- | |
Control A | 12 | 14.5 | 2.3 | 0.9–6.1 | ||
Exposed | 84 | 38.9 | 8.5 | 3.8–19.3 | ||
Headache | ||||||
Control B | 29 | 28.7 | 1.0 | --- | 1.0 | --- |
Control A | 18 | 21.7 | 0.7 | 0.3–1.4 | 0.6 | 0.3–1.2 |
Exposed | 138 | 63.9 | 4.4 | 2.6–7.3 | 3.1 | 1.7–5.5 |
Dizziness c | ||||||
Control B | 7 | 6.9 | 1.0 | --- | --- | |
Control A | 9 | 10.8 | 1.6 | 0.6–4.6 | ||
Exposed | 75 | 34.7 | 7.1 | 3.2–16.2 | ||
Irritability | ||||||
Control B | 4 | 4.0 | 1.0 | --- | 1.0 | --- |
Control A | 7 | 8.4 | 2.2 | 0.6–7.9 | 1.6 | 0.4–5.9 |
Exposed | 77 | 35.6 | 13.4 | 4.8–37.9 | 11.3 | 3.8–34.2 |
Weakness of extremities c | ||||||
Control B | 4 | 4.0 | 1.0 | --- | --- | |
Control A | 12 | 14.5 | 0.5 | 0.2–1.3 | ||
Exposed | 91 | 42.1 | 2.6 | 1.4–4.9 | ||
Other symptoms | ||||||
Fever | ||||||
Control B | 9 | 8.9 | 1.0 | --- | 1.0 | --- |
Control A | 7 | 8.4 | 0.9 | 0.3–2.6 | 1.0 | 0.4–3.1 |
Exposed | 65 | 30.1 | 4.4 | 2.1–9.3 | 4.5 | 1.9–10.3 |
Loss of appetite c | ||||||
Control B | 9 | 8.9 | 1.0 | --- | --- | |
Control A | 4 | 4.8 | 0.5 | 0.2–1.7 | ||
Exposed | 72 | 33.3 | 5.1 | 2.4–0.7 | ||
General fatigue | ||||||
Control B | 27 | 26.7 | 1.0 | --- | 1.0 | --- |
Control A | 22 | 26.5 | 1.0 | 0.5–1.9 | 0.9 | 0.4–1.8 |
Exposed | 116 | 53.7 | 3.2 | 1.9–5.3 | 3.1 | 1.7–5.7 |