Juho Kopra
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Regional and gender-specific analyses give new perspectives for secular trend in hip fracture incidence
SR Pekonen, J Kopra, H Kröger, T Rikkonen, R Sund
Osteoporosis International 32, 1725-1733, 2021
Characteristics of long‐term femoral neck bone loss in postmenopausal women: A 25‐year follow‐up
A Moilanen, J Kopra, H Kröger, R Sund, T Rikkonen, J Sirola
Journal of Bone and Mineral Research 37 (2), 173-178, 2020
Correcting for non‐ignorable missingness in smoking trends
J Kopra, T Härkänen, H Tolonen, J Karvanen
Stat 4 (1), 1-14, 2015
Polychoric correlation with ordinal data in nursing research
F Kiwanuka, J Kopra, N Sak-Dankosky, RC Nanyonga, T Kvist
Nursing research 71 (6), 469-476, 2022
Mark-recapture estimation of mortality and migration rates for sea trout (Salmo trutta) in the northern Baltic sea
RE Whitlock, J Kopra, T Pakarinen, E Jutila, AW Leach, P Levontin, ...
ICES Journal of Marine Science 74 (1), 286-300, 2017
Follow-up data improve the estimation of the prevalence of heavy alcohol consumption
J Kopra, P Mäkelä, H Tolonen, P Jousilahti, J Karvanen
Alcohol and Alcoholism 53 (5), 586-596, 2018
Best practices for the provision of prior information for Bayesian stock assessment
C Apostolidis, G Bal, R Froese, JKS Kuikka, A Leach, P Levontin, ...
ICES Cooperative Research Reports (CRR), 2015
Bayesian models for data missing not at random in health examination surveys
J Kopra, J Karvanen, T Härkänen
Statistical Modelling 18 (2), 113-128, 2018
The effect of COVID-19 lockdown on the incidence of emergency department visits due to injuries and the most typical fractures in 4 Finnish hospitals
H Nygren, J Kopra, H Kröger, I Kuitunen, VM Mattila, V Ponkilainen, ...
Acta orthopaedica 93, 360, 2022
Adjusting for selective non-participation with re-contact data in the FINRISK 2012 survey
J Kopra, T Härkänen, H Tolonen, P Jousilahti, K Kuulasmaa, ...
Scandinavian Journal of Public Health 46 (7), 758-766, 2018
Quality improvement activity in occupational healthcare associated with reduced need for disability retirement: a Bayesian mixed effects modelling study in Finland
J Kuronen, K Winell, J Kopra, K Räsänen
Scandinavian Journal of Work, Environment & Health 46 (6), 630, 2020
Statistical modelling of selective non-participation in health examination surveys
J Kopra
Report/University of Jyväskylä, Department of Mathematics and Statistics, 2018
The effects of precarious employment and calling on the psychosocial health and work well-being of young and older workers in the care sector: a longitudinal study
M Hult, H Kallio, M Kangasniemi, T Pesonen, J Kopra
International Archives of Occupational and Environmental Health 96 (10 …, 2023
Health check-ups as interventions for work disability management: supervisors and occupational healthcare follow the recommendations to a great extent
J Kuronen, K Winell, J Kopra, K Räsänen
Occupational and Environmental Medicine 80 (3), 170-176, 2023
Correction: Correcting for non‐ignorable missingness in smoking trends
J Kopra, T Härkänen, H Tolonen, J Karvanen
Stat 6 (1), 202-203, 2017
Obstetric claims in Finland 2012–2022—A nationwide patient insurance registry study
J Lojander, M Welling, A Axelin, M Härkänen, J Kopra, R Lamminpää
Acta Obstetricia et Gynecologica Scandinavica, 2024
Implementation of a Strengths-Based Nursing Intervention for Supporting Families in Acute Care Settings: Perspectives of Family Members and Nurses
F Kiwanuka, J Kopra, RC Nanyonga, N Sak-Dankosky, T Kvist
Predictive ability of a self-rated fall risk assessment tool in community-dwelling older women
T Vilpunaho, S Karinkanta, H Sievänen, J Kopra, H Kröger, T Rikkonen
Aging clinical and experimental research 35 (6), 1205-1212, 2023
Increasing selenium concentration in Finnish organic milk using participatory action approach
E Kuusela, L Okker, J Kopra
Agricultural and Food Science 32 (1), 1–8, 2023
Itseopiskelumateriaalia: Kausaalimallintamisen perusteet tilastotieteessä
J Kopra, S Tikka
Jyväskylän yliopisto, Matematiikan ja tilastotieteen laitos, 2016
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