{'fraction_non_alphanumeric': 0.02857142857142857, 'fraction_numerical': 0.03945578231292517, 'mean_word_length': 4.75, '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}}
The incidence of otosclerosis in the general population.

The incidence of clinical otosclerosis in the general population of Lithuania (USSR) was recorded from December 1961 to May 1970. A total of 974 otosclerotic individuals were found during this period, 27.2% of whom were males and 72.8%, females. In the majority of these patients, the clinical diagnosis of otosclerosis was confirmed at operation. The incidence of clinical otosclerosis in the population was found to be about 0.1%. The ratio of incidence of clinical:histological otosclerosis in the population investigated is assumed to be 1:4. The age period at risk for clinical otosclerosis is between 16 and 50 years, the greatest age period at risk being 20 to 40 years.