title: [An analysis of effects of fetal order and parental age on retinoblastoma].
abstract: 78 cases of retinoblastoma (Rb) diagnosed at the Eye ENT Hospital, Shanghai from 1953 to 1985 were studied. The results of multiple Logistic regression analysis and conditional probability model showed that high fetal order had a moderate risk (OR = 1.28, P less than 0.05) of developing unilateral Rb. Both unilateral and bilateral cases were independent of parental ages, and no interaction could be found between fetal order and paternal or maternal age; also, the effect of fetal order was not confounded by paternal ages.
authors.forename: F M
authors.initials: FM
authors.lastname: Shen
mesh_terms: D000293:Adolescent; D000328:Adult; D001722:Birth Order; D016022:Case-Control Studies; D002681:China / Q000453:epidemiology; D005134:Eye Neoplasms / Q000453:epidemiology*; D005260:Female; D006801:Humans; D016015:Logistic Models; D008423:Maternal Age; D016017:Odds Ratio; D011247:Pregnancy; D012175:Retinoblastoma / Q000453:epidemiology*