Comparison of glucosuria in the first- and second-voided specimens and the time of day as tested by four commercial testing products

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Abstract
The questions addressed in this study were whether testing first‐ and second‐voided urine specimens yielded different results and whether selected commercial testing products (Clinitest 2 drop, Clinitest 5 drop, Tes‐Tape, and Keto‐Diastix) yielded similar estimates of glucosuria. Twenty adult diabetics experiencing glucosuria served as subjects. First‐ and second‐voided specimens were collected before meals and before retiring. Data were analyzed using a three‐way ANOVA with repeated measures on all factors. The findings indicated significant main effects for product type, F (3,57) = 7.61, p = .0004, and time of day, F (3,57) = 8.60, p = .0002. The main effect for first‐ and second‐voided specimens did not approach significance.