Alethea Jerebine, Katie Fitton-Davies, Natalie Lander, Emma L J Eyre, Michael J Duncan, Lisa M Barnett
"All the fun stuff, the teachers say, 'that's dangerous!'" Hearing from children on safety and risk in active play in schools: a systematic review
The international journal of behavioral nutrition and physical activity
statistical analysis typically employed compare pain interventions assumes scores normally distributed present study evaluates whether numeric rating scale nrs specifically nrs11 scores indeed normally distributed clinicallyrelevant cohort adults chronic axial spine pain pre postanalgesic intervention retrospective review four academic medical centers prospectively collected data uniform pain diary administered consecutive patients undergoing medial branch blocks pain diary assessed nrs11 scores immediately preinjection 12 different time points postinjection 48 hours dagostinopearson tests used test normality time points one hundred fifty pain diaries reviewed despite normally distributed preinjection nrs11 scores k2 0655 p 072 postinjection nrs11 data normally distributed k2 970 1762 p 000010008 although results parametric analyses nrs11 scores commonly reported pain research properties nrs11 satisfy assumptions required analyses data demonstrate nonnormal distributions postintervention nrs11 scores thereby violating key requisite parametric analysis urge pain researchers consider appropriate statistical analysis reporting nonnormally distributed nrs11 scores ensure accurate interpretation communication data practicing pain physicians similarly recognize parametric postintervention pain score statistics may accurately describe data expect manuscripts utilize measures normality justify selected statistical methods