In the same study, 38.5% of patients with noninflammatory âsoft tissue rheumatismâ had a positive ANA result. at a 1:40 dilution, and 23.1% at a 1:80 dilution. Slater et al (6) studied 1,010 consecutive ANA results at a teaching hospital and attempted to correlate the results with clinical histories by chart review. Fifteen percent of all patients and 30% of patients older than 65 years had a positive ANA titer of 1:40 or greater, but the positive predictive value for rheumatic disease was low. The false-positive rate for any rheumatic disease was 72% in patients 65 years old or younger, and 90% in. patients older than 65 years.
Best of all, the installation process is perfectly suited for a seasoned do-it-yourselfer. A flooring contractor will charge $1184 to install prefinished oak parquet floor tiles in a 10-by-12-foot room, assuming the subfloor is sound and level.That includes labor and material.You can buy the tiles and adhesive for $560 and lay the floor yourself, saving 52 percent. DIY Hassle Alert. flooring contractor will charge $1184 to install prefinished oak parquet floor tiles in a 10-by-12-foot room, assuming the subfloor is sound and level. That includes labor and material. You can buy the tiles and adhesive for $560 and lay the floor yourself, saving 52 percent. DIY Hassle Alert.
1 The cost of engineered oak flooring depends largely on the quality of the product. 2  While most can be installed for $4 to $8 per square foot, high-quality flooring with numerous layers can cost up to $10 to $15 or more per square foot installed ($1,400 to $2,200 for a 12 ft. 3  x 12 ft.