Volume 30, Number 10—October 2024
CME ACTIVITY - Research
Age- and Sex-Specific Differences in Lyme Disease Health-Related Behaviors, Ontario, Canada, 2015–2022
Janica A. Adams
, Victoria Osasah, Katherine Paphitis, Affan Danish, Richard G. Mather, Curtis A. Russell, Jennifer Pritchard, and Mark P. Nelder
, Victoria Osasah, Katherine Paphitis, Affan Danish, Richard G. Mather, Curtis A. Russell, Jennifer Pritchard, and Mark P. Nelder
Table 1
Demographics of Lyme disease case-patients in Ontario, Canada, 2015–2022*
| Demographics | Value | Average annual incidence rate† |
|---|---|---|
| Age, y, n = 7,758‡ | ||
| Median (IQR) | 53 (32–64) | NA |
| Range | <1–95 | NA |
| Age group, y, n = 7,762 | ||
| <5 | 180 (2.3) | 3.1 |
| 5–9 | 440 (5.7) | 7.2 |
| 10–19 | 557 (7.2) | 4.3 |
| 20–29 | 567 (7.3) | 3.5 |
| 30–39 | 733 (9.5) | 4.6 |
| 40–49 | 975 (12.6) | 6.5 |
| 50–59 | 1,497 (19.3) | 9.2 |
| 60–69 | 1,636 (21.1) | 11.8 |
| 70–79 | 954 (12.3) | 10.8 |
| ≥80 | 219 (2.8) | 4.2 |
| Unknown |
4 (<0.5) |
NA |
| Sex/gender, n = 7,762§ | ||
| M | 4,371 (56.3) | 7.6 |
| F | 3,364 (43.3) | 5.7 |
| Transgender/other/unknown | 27 (<0.5) | NA |
*Values are no. (%) patients except as indicated. IQR, interquartile range; NA, not available †Rates per 100,000 persons were calculated for each age group using age-stratified annual population estimates in Ontario and for each sex using sex-stratified annual population estimates in Ontario. ‡Data for age were unavailable for 4 case-patients. Analysis was restricted to case-patients with complete data for age. §Analysis was restricted to case-patients who self-identified as male or female because of low counts (n<5) observed in other reported categories.
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