{'fraction_non_alphanumeric': 0.024793388429752067, 'fraction_numerical': 0.012396694214876033, 'mean_word_length': 5.298701298701299, '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}}
Undescended testes in low birthweight infants.

Cryptorchidism is a known risk factor for infertility and testicular malignancy. The reported incidence is rising and is now over 2%,' bilateral abnormality occurring in 10-25% of cases. Undescended testes are more common in low birthweight infants,2 but there is little detailed information on this subgroup. We collected extensive data on preterm infants, enabling us to determine the incidence of cryptorchidism and its associations.