Ryan is a research fellow for the Health Promotion and Policy Research Unit at the University of Otago, Wellington. He completed a Master's thesis in 2017 on sun protection practices among primary schoolchildren and the cost-effectiveness of installing shade in schools. He is currently working on research projects looking at UV exposure, skin cancer prevention and children's exposure to marketing.
Publications
Lowe, B. M., Smith, M., Jaine, R., Stanley, J., Gage, R., & Signal, L. (2023). Watching the watchers: Assessing the nature and extent of children's screen time using wearable cameras. New Zealand Medical Journal/Te ara tika o te hauora hapori, 136(1578), 12-31. Retrieved from https://journal.nzma.org.nz/
Journal - Research Article
Gage, R., Mizdrak, A., Richards, J., Bauman, A., McLeod, M., Jones, R., … Shaw, C. (2023). The epidemiology of domain-specific physical activity in New Zealand adults: A nationally representative cross-sectional survey. Journal of Physical Activity & Health, 20, 909-920. doi: 10.1123/jpah.2022-0156
Journal - Research Article
Signal, L., & Gage, R. (2023). Generating political priority for domestic alcohol policy reform: A framework to guide advocacy and research. Population Medicine, 5(Suppl.), (pp. 458). doi: 10.18332/popmed/165421
Conference Contribution - Published proceedings: Abstract
Gage, R., Gurtner, M., Keall, M., Smith, M., McKerchar, C., Howden-Chapman, P., Shaw, C., Chambers, T., Pearson, A. L., … Signal, L. (2023). Fun, food and friends: A wearable camera analysis of children's school journeys. Journal of Transport & Health, 30, 101604. doi: 10.1016/j.jth.2023.101604
Journal - Research Article
Shaw, C., Gage, R., Mizdrak, A., McLeod, M., Jones, R., & Woodward, A. (2022, November). Socioeconomic inequalities in greenhouse gas emissions from household travel in Aotearoa/NZ. Verbal presentation at the 4th Transport Research Network (TRN) Symposium, Dunedin, New Zealand.
Conference Contribution - Verbal presentation and other Conference outputs
Gage, R., Chambers, T., Smith, M., McKerchar, C., Puloka, V., Pearson, A., Kawachi, I., & Signal, L. (2022). Children's perspectives on the wicked problem of child poverty in Aotearoa New Zealand: A wearable camera study. New Zealand Medical Journal, 135(1559), 95-111. Retrieved from https://journal.nzma.org.nz
Journal - Research Article
Gage, R., Leung, W., Gurtner, M., Reeder, A. I., McNoe, B. M., & Signal, L. (2022). Generating political priority for skin cancer primary prevention: A case study from Aotearoa New Zealand. Health Promotion Journal of Australia, 33, 740-750. doi: 10.1002/hpja.545
Journal - Research Article
Liu, W., Gage, R., Park, H., Pearson, A. L., Chambers, T., Smith, M., Barr, M., … Signal, L. (2022). The distribution of harmful product marketing in public outdoor spaces and the effectiveness of marketing bans. Health & Place, 76, 102861. doi: 10.1016/j.healthplace.2022.102861
Journal - Research Article
McKerchar, C., Gage, R., Smith, M., Lacey, C., Abel, G., Ni Mhurchu, C., & Signal, L. (2022). Children’s community nutrition environment, food and drink purchases and consumption on journeys between home and school: A wearable camera study. Nutrients, 14, 1995. doi: 10.3390/nu14101995
Journal - Research Article
McNoe, B. M., Gage, R., & Signal, L. (2022). What can Aotearoa New Zealand learn from the Australian Sunsmart story? A qualitative study. Australian & New Zealand Journal of Public Health, 46(3), 387-393. doi: 10.1111/1753-6405.13243
Journal - Research Article
Norriss, D., Crossin, R., Curl, A., Bidwell, S., Clark, E., Pocock, T., Gage, R., & McKerchar, C. (2022). Food outlet access and the healthiness of food available 'on-demand' via meal delivery apps in New Zealand. Nutrients, 14(20), 4228. doi: 10.3390/nu14204228
Journal - Research Article
Watkins, L., Gage, R., Smith, M., McKerchar, C., Aitken, R., & Signal, L. (2022). An objective assessment of children's exposure to brand marketing in New Zealand (Kids'Cam): A cross-sectional study. Lancet Planetary Health, 6, e132-e138. doi: 10.1016/S2542-5196(21)00290-4
Journal - Research Article
Gurtner, M., Smith, M., Gage, R., Howey-Brown, A., Wang, X., Latavao, T., Deng, J. D., Zwanenburg, S. P., Stanley, J., & Signal, L. (2022). Objective assessment of the nature and extent of children’s internet-based world: Protocol for the Kids Online Aotearoa study. JMIR Research Protocols, 11(10), e39017. doi: 10.2196/39017
Journal - Research Other
Park, H., Liu, W., Gage, R., Chambers, T., Smith, M., Barr, M., … Signal, L., & Pearson, A. L. (2022). Do bans on harmful marketing protect children equally?: A geospatial analysis of harmful product marketing in public outdoor spaces. Proceedings of the American Association of Geographers (AAG) Annual Meeting. Retrieved from https://aag-annualmeeting.secure-platform.com
Conference Contribution - Published proceedings: Abstract
Freeman, N., Gage, R., Chambers, T., Blaschke, P., Cook, H., Stanley, J., Pearson, A., Smith, M., Barr, M., & Signal, L. (2021). Where do the children play? An objective analysis of children's use of green space. Health Promotion International, 36, 846-853. doi: 10.1093/heapro/daaa106
Journal - Research Article
Gage, R., Girling-Butcher, M., Joe, E., Smith, M., Ni Mhurchu, C., McKerchar, C., Puloka, V., McLean, R., & Signal, L. (2021). The frequency and context of snacking among children: An objective analysis using wearable cameras. Nutrients, 13, 103. doi: 10.3390/nu13010103
Journal - Research Article
Gage, R., Gurtner, M., Signal, L., Keall, M., Smith, M., McKerchar, C., & Howden-Chapman, P. (2021). Children's journey to and from school: An analysis of travel modes, environments and eating behaviours using wearable cameras. Proceedings of the International Society of Behavioral Nutrition & Physical Activity Annual Meeting (ISBNPA XChange): Thinking Independently Together: Let's Dance Around the World. (pp. 50). International Society of Behavioral Nutrition & Physical Activity. Retrieved from https://isbnpa2021.venuewest.com
Conference Contribution - Published proceedings: Abstract
McKerchar, C., Smith, M., Gage, R., Williman, J., Abel, G., Lacey, C., Ni Mhurchu, C., & Signal, L. (2020). Kids in a candy store: An objective analysis of children's interactions with food in convenience stores. Nutrients, 12(7), 2143. doi: 10.3390/nu12072143
Journal - Research Article
McKerchar, C., Smith, M., Stanley, J., Barr, M., Chambers, T., Abel, G., Lacey, C., Gage, R., … Signal, L. (2020). Food store environment examination: FoodSee: A new method to study the food store environment using wearable cameras. Global Health Promotion, 27(3), 73-81. doi: 10.1177/1757975919859575
Journal - Research Article
Signal, L. N., Edwards, R., Gage, R., Jackson, N., McKerchar, C., & Sarfati, D. (2020). The state of cancer prevention in Aotearoa New Zealand: Slow progress requires political leadership and investment for health and equity. Journal of Cancer Policy, 23, 100212. doi: 10.1016/j.jcpo.2019.100212
Journal - Research Article
Vaipuna, T., Allison, L., Bhasin, A., Choi, K., Chu, A., Grice, K., Hay, A., Huang, S., Jarvis, E.-M., Laing, B., Lewis, A., Moriarty, R. H., … Rajendra, P., Simpson, J., Tay, A., Yang, A., Smith, M., Gage, R., … Signal, L. (2020). An objective methodology capturing online commodity marketing and other harms. Health Promotion International, 35, 1312-1319. doi: 10.1093/heapro/daz131
Journal - Research Article
O'Toole, C., Gage, R., McKerchar, C., Puloka, V., McLean, R., & Signal, L. (2020). Is snacking the new eating norm for New Zealand children? An urgent call for research. New Zealand Medical Journal, 133(1517), 131-132. Retrieved from https://www.nzma.org.nz/journal
Journal - Research Other
Gage, R., Girling-Butcher, M., Joe, E., Smith, M., McKerchar, C., Puloka, V., & Signal, L. (2020). Big snack: Using wearable cameras to explore children's daily snacking behaviours. Proceedings of the International Society of Behavioral Nutrition & Physical Activity (ISBNPA) XChange. (pp. 270). International Society of Behavioral Nutrition and Physical Activity. Retrieved from https://venuewest.eventsair.com/isbnpa-xchange-initiative
Conference Contribution - Published proceedings: Abstract
McKerchar, C., Smith, M., Gage, R., Williman, J., Abel, G., Lacey, C., … Signal, L. (2020). Kids in a candy store: An objective analysis of children's interactions with food in convenience stores. Proceedings of the International Society of Behavioral Nutrition & Physical Activity (ISBNPA) XChange. (pp. 385). International Society of Behavioral Nutrition and Physical Activity. Retrieved from https://venuewest.eventsair.com/isbnpa-xchange-initiative
Conference Contribution - Published proceedings: Abstract
Worters, T., Gage, R., Watkins, L., Aitken, R., Smith, M., McKerchar, C., & Signal, L. (2020). Food marketing and its place in the marketing landscape. Proceedings of the International Society of Behavioral Nutrition & Physical Activity (ISBNPA) XChange. (pp. 418). International Society of Behavioral Nutrition and Physical Activity. Retrieved from https://venuewest.eventsair.com/isbnpa-xchange-initiative
Conference Contribution - Published proceedings: Abstract
Gage, R., Leung, W., Stanley, J., Reeder, A., Mackay, C., Chambers, T., Smith, M., Barr, M., & Signal, L. (2019). Studying third-parties and environments: New Zealand sun-safety research. Health Promotion International, 34(3), 440-446. doi: 10.1093/heapro/dax094
Journal - Research Article
Gage, R., Wilson, N., Signal, L., & Thomson, G. (2019). Shade in playgrounds: Findings from a nationwide survey and implications for urban health policy. Journal of Public Health, 27(5), 669-674. doi: 10.1007/s10389-018-0990-9
Journal - Research Article
Watkins, L., Aitken, R., Gage, R., Smith, M. B., Chambers, T. J., Barr, M., Stanley, J., & Signal, L. N. (2019). Capturing the commercial world of children: The feasibility of wearable cameras to assess marketing exposure. Journal of Consumer Affairs, Winter, 1396-1420.
Journal - Research Article
Gurtner, M., Gage, R., Thomson, G., Jaine, R., Stanley, J., Smith, M., Barr, M., Chambers, T., & Signal, L. (2019). Are children smoke-free at home? Using wearable cameras to study children's exposure to smoking and smoking paraphernalia in private spaces [Short report]. Child: Care, Health & Development, 45, 306-309. doi: 10.1111/cch.12631
Journal - Research Other
Gage, R., Leung, W., & Signal, L. (2019). A burning hole in New Zealand health policy: Key informant views on the barriers holding back skin cancer prevention. Proceedings of the 23rd International Union for Health Promotion and Education (IUHPE) World Conference on Health Promotion. Retrieved from http://www.iuhpe2019.com
Conference Contribution - Published proceedings: Abstract
Gage, R., Watkins, L., Aitken, R., Smith, M., & Signal, L. (2019). Children's real-time exposure to commercial marketing: An observational analysis using wearable cameras. Proceedings of the 23rd International Union for Health Promotion and Education (IUHPE) World Conference on Health Promotion. Retrieved from http://www.iuhpe2019.com
Conference Contribution - Published proceedings: Abstract
Puloka, V., Smith, M., Ferguson, A., Gage, R., Signal, L., & Baker, M. (2019). Identifying infectious disease hazards in Tongan children's environments using wearable cameras. Proceedings of the Otago Global Health Institute (OGHI) 12th Annual Conference: Global Health in the Era of Climate Change. (pp. 14). Retrieved from https://www.otago.ac.nz/global-health
Conference Contribution - Published proceedings: Abstract
Gage, R., Barr, M., Stanley, J., Reeder, A., Mackay, C., Smith, M., Chambers, T., Leung, W., & Signal, L. (2018). Sun protection and shade availability in New Zealand's outdoor recreation spaces. New Zealand Medical Journal, 131(1484), 30-37. Retrieved from https://www.nzma.org.nz/journal
Journal - Research Article
Gage, R., Leung, W., Stanley, J., Reeder, A., Mackay, C., Smith, M., Barr, M., Chambers, T., & Signal, L. (2018). Sun protection among New Zealand primary school children. Health Education & Behavior, 45(5), 800-807. doi: 10.1177/1090198117741943
Journal - Research Article
Gage, R., O'Toole, C., Robinson, A., Reeder, A., Signal, L., & Mackay, C. (2018). Wellington playgrounds uncovered: An examination of solar ultraviolet radiation and shade protection in New Zealand. Photochemistry & Photobiology, 94(2), 357-361. doi: 10.1111/php.12855
Journal - Research Article
Gage, R., Wilson, N., Signal, L., Barr, M., Reeder, A., & Thomson, G. (2018). Using Google Earth to assess shade for sun protection in urban recreation spaces: Methods and results. Journal of Health Communication, 43, 1061-1068. doi: 10.1007/s10900-018-0522-0
Journal - Research Article
Gage, R., Leung, W., Stanley, J., Reeder, A., Barr, M., Chambers, T., Smith, M., & Signal, L. (2017). Clothing protection from ultraviolet radiation: A new method for assessment. Photochemistry & Photobiology, 93(6), 1513-1518. doi: 10.1111/php.12803
Journal - Research Article
Gage, R., Leung, W., Signal, L., Stanley, J., Reeder, T., & Mackay, C. (2017). The lifetime cost-effectiveness of preventing skin cancer through shade construction in schools. Proceedings of the 15th World Congress on Public Health. Retrieved from https://wcph2017.entegyapp.com/Page/28/564/26/1459
Conference Contribution - Published proceedings: Abstract
Thomson, G., Delany, L., & Gage, R. (2017). The international tax regime as a health determinant: Promoting health through fair international taxation. Proceedings of the New Zealand Public Health Association (PHA) Conference. 74. Retrieved from http://www.conference.co.nz/phanz17
Conference Contribution - Published proceedings: Abstract
Thomson, G., Wilson, N., & Gage, R. (2017). Healthy playgrounds: Simple methods to gather data for monitoring health risks and for advocacy. Proceedings of the New Zealand Public Health Association (PHA) Conference. 73. Retrieved from http://www.conference.co.nz/phanz17
Conference Contribution - Published proceedings: Abstract
Watkins, L., Aitken, R., Signal, L., Smith, M., & Gage, R. (2017). Documenting the commercial world of New Zealand children. In B. Wooliscroft & A. Ganglmair-Wooliscroft (Eds.), Proceedings of the Macromarketing Conference: Macromarketing Systems' Contributions to Society: Past, Present and Potential. (pp. 631-633). Dunedin, New Zealand: Macromarketing Society and the Marketing Department, University of Otago. [Abstract]
Conference Contribution - Published proceedings: Abstract
Gage, R., Signal, L., Leung, W., Stanley, J., Reeder, T., & Mackay, C. (2016). No hat, no play? An objective evaluation of sun-safety practices in New Zealand primary and intermediate schools. Proceedings of the 3rd Aotearoa New Zealand Childhood Studies Colloquium: Children and Childhoods: Agency, Participation and Contribution. (pp. 8-9). Retrieved from https://www.ivvy.com/event/A1ZAMK/
Conference Contribution - Published proceedings: Abstract
Signal, L., Smith, M., Barr, M., Stanley, J., Jenkin, G., Chambers, T., Gage, R., … Ni Mhurchu, C. (2016). Automated anthropology: A new method of working with children and exploring their world. Saúde e Sociedade, 25(Suppl. 1), (pp. 1658). [Abstract]
Conference Contribution - Published proceedings: Abstract
Smith, M., Signal, L., Barr, M., Stanley, J., Jenkin, G., Chambers, T., Gage, R., … Ni Mhurchu, C. (2016). Automated anthropology: A new method of working with children and exploring their world. Proceedings of the 3rd Aotearoa New Zealand Childhood Studies Colloquium: Children and Childhoods: Agency, Participation and Contribution. (pp. 20-21). Retrieved from https://www.ivvy.com/event/A1ZAMK/
Conference Contribution - Published proceedings: Abstract