Meta-analysis of the optimal needle length and decompression site for tension pneumothorax and consensus recommendations on current ATLS and ETC guidelines.

Intercept : 65.43 R-Squared : 0.317 p-value : 0.00064 The ANOVA results for failure rates across the sites, 2MCL, 5 AAL and 5MAL, standardized by needle length, are: F-statistic : 2.90 p-value : 0.0516 The p-value (0.0516) is above the typical significance threshold of 0.05, indicating that there is no statistically significant difference in failure rates between sites when comparing standardized needle lengths, but the result is noted to be close to significance.

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