Andjelka Pavlovic, Laura F DeFina, Breanna L Natale, Shelby E Thiele, Timothy J Walker, Derek W Craig, Georgina R Vint, David Leonard, William L Haskell, Harold W Kohl
Keeping children healthy during and after COVID-19 pandemic: meeting youth physical activity needs
BMC public health
understanding sexual lifestyles change time important determining likelihood sexual health outcomes standard descriptive regression methods limited ability capture multidimensional concepts sexual lifestyles latent class analysis lca mixture modelling method generates categorical latent variable derive homogenous groups heterogeneous population study investigates 1 potential lca assess change time sexual lifestyles 2 quantifying change using lca compares previous findings using standard approaches probabilitysampled data three rounds national survey sexual attitudes lifestyle natsal used restricted sexually active participants ie reporting sexual partners past year aged 1644 years n1990 11738 n2000 9690 n2010 8397 lca model built four variables number sexual partners past year number partners without condom past year age first sex selfperceived hiv risk covariates included age ethnicity educational attainment samesex attraction marital status multinomial regression analyses chisquared tests used investigate change time size class successfully used lca approach examine change sexual lifestyle time observed statistically significant increase 1990 2010 proportion men 2 73949 p 001 women 2 127043 p 001 latent class associated reporting 2 partners last year relatively high probabilities reporting condomless sex partners greater selfperceived hiv risk high probability first sex age 16 years increasing 195 311 men 99 221 women results indicate viability lca models assess change time complex behavioural phenomena align previous findings namely changing sexual lifestyles britain recent decades partnership number driving class assignment significant sex differences sexual lifestyles approach used extend previous lca models eg investigate impact covid19 sexual lifestyles support empirical evidence change time facilitating nuanced public health policy