A Short-Cut Measure of Correlation

Dental Caries in Children One to Six Years of Age as Related to Socioeconomic Level, Food Habits, and Toothbrushing

“…Data on the 279 children were analyzed by chi square and correlation techniques. 6 This study, therefore, represents only children whose parents were traceable and cooperative. On the factors we know about, the respondents and total population examined compare as follows: (Table IIA) between dental caries (def teeth) and (a) desserts consumed at lunch and/or at dinner, (b) number of times per week cake, pie, ice cream, gelatin, cookies, and/or candy were consumed, (c) number of times per week fresh fruit was consumed, (d) frequency of food consumed between meals, (e) economic level of the parents as estimated by the interviewer, (f) type of father's employment (unemployed, unskilled, skilled, white collar, managerial or owner, professional), (h) income of parents, and (i) number of times per day the child brushed his teeth.…”