| Presentation adapting a clinical comorbidity index for use with ICD-9-CM administrative data: differing perspectives PS Romano, LL Roos, JG Jollis Journal of clinical epidemiology 46 (10), 1075-1079, 1993 | 1938 | 1993 |
| Short-, medium-, and long-term consequences of poor infant health: An analysis using siblings and twins P Oreopoulos, M Stabile, R Walld, LL Roos Journal of human Resources 43 (1), 88-138, 2008 | 537 | 2008 |
| Epidemiology of varicella zoster virus infection in Canada and the United Kingdom M Brisson, WJ Edmunds, B Law, NJ Gay, R Walld, M Brownell, LL Roos, ... Epidemiology & Infection 127 (2), 305-314, 2001 | 477 | 2001 |
| Estimating the burden of disease: comparing administrative data and self-reports JR Robinson, TK Young, LL Roos, DE Gelskey Medical care, 932-947, 1997 | 406 | 1997 |
| Child health and young adult outcomes J Currie, M Stabile, P Manivong, LL Roos Journal of Human resources 45 (3), 517-548, 2010 | 405 | 2010 |
| Clinical effectiveness of influenza vaccination in Manitoba DS Fedson, A Wajda, JP Nicol, GW Hammond, DL Kaiser, LL Roos Jama 270 (16), 1956-1961, 1993 | 372 | 1993 |
| Administrative record linkage as a tool for public health research DP Jutte, LL Roos, MD Brownell Annual review of public health 32, 91-108, 2011 | 367 | 2011 |
| Development and validation of the Ontario acute myocardial infarction mortality prediction rules JV Tu, PC Austin, R Walld, L Roos, J Agras, KM McDonald Journal of the American College of Cardiology 37 (4), 992-997, 2001 | 327 | 2001 |
| Registries and administrative data: organization and accuracy LL Roos, CA Mustard, JP Nicol, DF McLerran, DJ Malenka, TK Young, ... Medical care, 201-212, 1993 | 325 | 1993 |
| Physician visits, hospitalizations, and socioeconomic status: ambulatory care sensitive conditions in a Canadian setting LL Roos, R Walld, J Uhanova, R Bond Health services research 40 (4), 1167-1185, 2005 | 320 | 2005 |
| Health care utilization in males with obstructive sleep apnea syndrome two years after diagnosis and treatment. Bahammam A, Delaive K, Ronald J, Manfreda J, Roos L, Kryger MH Sleep 22 (6), 740-747, 1999 | 293 | 1999 |
| Health care utilization in the 10 years prior to diagnosis in obstructive sleep apnea syndrome patients Ronald J, Delaive K, Roos L, Manfreda J, Bahammam A, Kryger MH Sleep 22 (2), 225-229, 1999 | 276 | 1999 |
| A research registry: uses, development, and accuracy LL Roos, JP Nicol Journal of clinical epidemiology 52 (1), 39-47, 1999 | 273 | 1999 |
| Regionalization of cardiac surgery in the United States and Canada: geographic access, choice, and outcomes K Grumbach, GM Anderson, HS Luft, LL Roos, R Brook Jama 274 (16), 1282-1288, 1995 | 263 | 1995 |
| A matched cohort study of postoperative outcomes in obstructive sleep apnea: could preoperative diagnosis and treatment prevent complications? TC Mutter, D Chateau, M Moffatt, C Ramsey, LL Roos, M Kryger Anesthesiology 121 (4), 707-718, 2014 | 256 | 2014 |
| A comparison of administrative versus clinical data: coronary artery bypass surgery as an example PS Romano, LL Roos, HS Luft, JG Jollis, K Doliszny, ... Journal of clinical epidemiology 47 (3), 249-260, 1994 | 236 | 1994 |
| Age-specific education and income gradients in morbidity and mortality in a Canadian province CA Mustard, S Derksen, JM Berthelot, M Wolfson, LL Roos Social science & medicine 45 (3), 383-397, 1997 | 230 | 1997 |
| Using administrative data for longitudinal research: comparisons with primary data collection LL Roos Jr, JP Nicol, SM Cageorge Journal of chronic diseases 40 (1), 41-49, 1987 | 217 | 1987 |
| How good are the data?: Reliability of one health care data bank LL Roos Jr, NP Roos, SM Cageorge, JP Nicol Medical care, 266-276, 1982 | 217 | 1982 |
| Data quality in an information-rich environment: Canada as an example LL Roos, S Gupta, RA Soodeen, L Jebamani Canadian Journal on Aging/La Revue canadienne du vieillissement 24 (S1), 153-170, 2005 | 210 | 2005 |
