{'fraction_non_alphanumeric': 0.028286189683860232, 'fraction_numerical': 0.06156405990016639, 'mean_word_length': 4.280701754385965, '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': 1, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
[Decreased incidence in HIV infection and changed sex behavior in a cohort of homosexual men in Amsterdam].

Prevalence and incidence of HIV were studied in two cohorts of homosexual men in Amsterdam between 1980 and 1987. The cumulative incidence of HIV infection increased from a weighted 2.2% in 1980 to 39% in 1987. In that year the observed incidence was less than 1%. The estimated annual HIV incidence was 3% in 1981, rose to 8.8% in 1984 and decreased gradually to 0% in 1987. This decline was assumed to be linked to a strong reduction of high risk sexual behaviour among the men under study.