{'fraction_non_alphanumeric': 0.016544117647058824, 'fraction_numerical': 0.0, 'mean_word_length': 5.646341463414634, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
[Pressure ulcer prevalence and incidence, instructions for use].

Pressure ulcer prevalence and incidence surveys are more and more frequently conducted and used as indicators in order to evaluate healthcare quality and effectiveness of implementation of prevention measures (guidelines and recommendations). The ever-increasing use of such surveys over the last ten years justifies the necessity for a better understanding of definitions and what can be expected from these results in order to optimise their use as epidemiological indicators.