Health Effects of the Tasman Spirit Oil Spill in Karachi
Author Information
Author(s): Janjua Naveed Zafar, Kasi Pashtoon Murtaza, Nawaz Haq, Farooqui Sadia Zohra, Khuwaja Urooj Bakht, Najam-ul-Hassan, Jafri Syed Nadim, Lutfi Shahid Ali, Kadir Muhammad Masood, Sathiakumar Nalini
Primary Institution: Aga Khan University
Hypothesis
Did the Tasman Spirit oil spill lead to increased health issues among residents of Karachi?
Conclusion
The study found that residents exposed to the oil spill reported significantly more health symptoms than those living further away.
Supporting Evidence
- 96% of the exposed group reported symptoms compared to 70% in control group A and 85% in control group B.
- Mean symptom scores were significantly higher in the exposed group (14.5) than in control groups A (4.5) and B (3.8).
- Logistic regression showed strong associations between exposure and reported symptoms.
Takeaway
People living near the oil spill got sick more often than those who lived far away from it.
Methodology
The study involved interviews with residents living on the affected shoreline and two control groups, assessing symptoms related to the oil spill.
Potential Biases
Potential recall bias and over-reporting of symptoms by the exposed group due to anxiety about health effects.
Limitations
The study's sample size was limited by funding, and exposure assessment was based on geographic location rather than direct measurement.
Participant Demographics
The sample included 57% women and 43% men, with a mean age of 35.5 years for the exposed group.
Statistical Information
P-Value
p<0.001
Confidence Interval
95% CI: 6.37 – 10.12
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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