Differences in body temperature measurement with different types of thermometer

Cilj istraživanja: Istražiti i usporediti rezultate mjerenja trima različitim termometrima. Uspoređena su mjerenja tjelesne temperature živinim, alkoholnim i digitalnim termometrom. Termometri kakvi su primijenjeni u istraživanju su termometri dostupni općoj populaciji kako bi kod kuće mogli provjerili točnost tjelesne temperature. Nacrt studije: Presječno istraživanje provedeno na Medicinskom fakultetu u Osijeku tijekom prosinca 2018. do sredine veljače 2019. Ispitanici i metode: U istraživanju su sudjelovala šezdeset i četiri ispitanika. Kao instrument istraživanja korištena su tri različita termometra (živin, alkoholni i digitalni termometar). Mjerenje je provedeno nasumičnim redosljedom ispod pazuha lijeve ruke ispitanika te je izvršeno u sličnom vremenskom razdoblju. Rezultati: Obrađeni su podaci 64 ispitanika. Rezultati su pokazali kako nema veće razlike u mjerenju između živina i alkoholnog termometra. Jednadžba pravca dobivena Passing-Bablok regresijom je linearna, a ukupno gledano vrijednosti dobivenih mjerenja su proporcionalne ( y = 0 + 1x). Digitalni termometar u prosijeku odstupa za -0,4 °C te su razlike više što je izmjerena temperatura veća. Zaključak: Preporučuje se uporaba alkoholnog ili živina termometra koji su nam pokazali slične rezultate, dok s primjenom digitalnog termometra treba biti oprezan jer se pokazalo kako se njegova točnost mijenja s izmjerenim višim tjelesnim temperaturama.Research goals: The aim of this study is to examine and compare measurement results for three different thermometers. The body temperature measurement was measured and compared with mercury, alcohol and digital thermometers. Thermometers used in this study are the ones affordable to the general population used to test the accuracy of body temperature at home. Study plan: Cross-sectional research was conducted at the Faculty of Medicine in Osijek in December 2018 to mid- Febrauary 2019. Respondents and methods: The study included sixty-four participants. Three different thermometers (mercury, alcohol and digital thermometers) were used as the research instrument. The measurement was performed randomly below the armpit of the left hand of the examinee at a similar period of time. Results: Data were processed from 64 examinees. The results showed that there is no greater difference in measurement between the mercury and alcohol thermometer. By using Passing- Bablok regression, the equation is linear, and the measured values in total are proportional (y = 0 + 1x). The digital thermometer in average varies by -0.4 °C and the differences are greater as the measured temperature gets higher. Conclusion: It is recommended to use an alcohol or mercury thermometer which showed similar results, while using a digital thermometer we should be careful because its accuracy may change with measured higher body temperatures