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Statistics or be damned – about PBM and aphthous ulcers

By Jan Tunér

A few years ago I and my Cuban friends performed a clinical study on the effect of PBM on aphthous ulcers. The paper was submitted to a scientific journal but was not accepted, mainly because a statistical evaluation was missing. Here is the situation: 102 ulcers were treated in the PBM group and another 102 were given traditional treatment such as food counselling and analgesics. The points of evaluation were at 48 hrs, between 48 hrs to 4 days, 5-7 days, and more than 7 days. In the PBM group about 65% of the ulcers healed within 48 hrs and another 25% in the period between 48 hrs and 4 days. NO ulcer in the non-PBM group healed prior to 4 days. Statistics, anyone? How do you calculate it – and are very obvious results in need of statistics? Statistics for the sake of statistics?

We preferred not to take a fight with the very persistent reviewer and choose to publish it in the journal “Laser international magazine” from Oemus Publishing in Germany. For your information, you can download it here. Read and make your own judgement.

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