>Year 2001, Issue 4
Villegas SAA, Hurtado LLM, Zaldivar RFR, Basurto KE, Muñoz SO, Pulido CA, Campos CC
Epidemiology of the thyroid nodule
Cir Gen 2001; 23 (4)
PDF: 4. Kb.
Objective: To identify the epidemiological factors regarding patients with thyroid nodule in the population being cared for at the General Hospital of Mexico City.
Material and methods: Retrospective, observational, descriptive study, from January 1990 to May 1997 in patients with surgical thyroid nodule.
Variables: Age, gender, place of origin, place of residence, schooling, occupation, socio-economic level, general and goiter diet, previous thyroid pathology, familial thyroid pathology, concomitant and autoinmune chronic diseases, start of illness with pregnancy, and radiation antecedents. Statistical analysis was achieved using central tendency measures. Chi square (χ2), and multiple variance analysis (ANOVA) with Scheffe’s test.
Results: There were 625 patients, 583 women (93.3%) and 42 men (6.7%). Elementary schooling was the most frequent, their diet was hypocaloric and hypoproteinic, none with an important supply of goitrogenic food. Most belonged to the low socioeconomic level, the rest were from an intermediate level. The most frequent occupation was of homemaker. Familial antecedents were larger for thyroiditis and medullary cancer. Seventy-five percent of the population had its residence in the Federal District and State of Mexico. ANOVA indicated that the patients with thyroiditis and medullary cancer were the youngest ones.
Conclusion: The thyroid nodules being cared for at the General Hospital of Mexico City are found in women aged between 35 and 45 years, from the central part of the country, of low socio-economic and schooling levels. Most were homemakers, consuming hypocaloric and hypoproteinic diets, without relevant antecedents or epidemiological data that might allow to suspect malignancy or to identify risk factors.
||Thyroid, thyroid nodule, epidemiology.
Wong CK, Wheeler MH. Thyroid nodules: rational management. World J Surg 2000; 24: 934-41.
Mazzaferri EL. Management of a solitary thyroid nodule. N Engl J Med 1993; 328: 553-9.
Kelman AS, Rathan A, Leibowitz J, Burstein DE, Haber RS. Thyroid cytology and the risk of malignancy in thyroid nodules: importance of nuclear atypia in indeterminate specimens. Thyroid 2001; 11: 271-7.
Sinha PS, Beeby DI, Ryan P. An evaluation of thallium imaging for detection of carcinoma in clinically palpable solitary, nonfunctioning thyroid nodules. Thyroid 2001; 11: 85-90.
Boigon M, Moyer D. Solitary thyroid nodules. Separating benign from malignant conditions. Postgrad Med 1995; 98: 73-4, 77-80.
Torres AP, Hernández SE, Caracas PN, Serrano GI, Ayala ZM, González BD. Diagnóstico y tratamiento del nódulo tiroideo. Rev Endocrinol Nutr 2000; 8: 87-93.
Vázquez OR, Basurto KE. Nódulo tiroideo solitario: experiencia en 239 pacientes. Cir Gen 1998; 20: 99-101.
Hay ID, Feld S, Garcia M. AACE clinical practice guidelines for the management of thyroid carcinoma. Endocr Pract 1997; 3: 60.
Ureles AL, Freedman ZR. Thyroidology-reflections on twentieth century history. In: Falk SA. Thyroid disease. Endocrinology, surgery, nuclear medicine and radiotherapy. 2th Ed. Philadelphia: Lippincott-Raeven Publishers; 1997.p.1-14.
Favus MJ, Schneider AB, Stachura ME, Arnold JE, Ryo UY, Pinsky SM, et al. Thyroid cancer occurring as a late consequence of head and neck irradiaton: Evaluation of 1056 patients. N Engl J Med 1976; 294: 1019-25.
DeGroot L, Paloyan E. Thyroid carcinoma and radiation. A Chicago endemic. JAMA 1973; 294: 487-91.
Williams ED, Doniach I, Bjarnason O, Michie W. Thyroid cancer in an iodine rich area: a histopathological study. Cancer 1977; 39: 215-22.
Wells SA Jr, Franz C. Medullary carcinoma of the thyroid gland. World J Surg 2000; 24: 952-6.
Pasieka JL. Hashimoto´s disease and thyroid lymphoma: role of the surgeon. World J Surg 2000; 24: 966-70.
Vander JB, Gaston EA, Dawber TR. The significance of nontoxic thyroid nodules. Final report of a 15-year study of the incidence of thyroid malignancy. Ann Intern Med 1968; 69: 537-40.
>Year 2001, Issue 4