Table 4.

Observed number of ankle fractures in 2017–2019 and 2020, analyzed month by month and sub-grouped for sex and into age groups

Period	Observed number 2017– 2019	Monthly rates
		2017– 2019	2020	Estimated difference (95% CI)	Change (%) from 2017–2019
March 15–April 14
Male	200	67	55	–12 (–29 to 6)	–18
Female	323	108	74	–34 (–54 to –13)	–31
April 15–May 15
Male	160	53	56	3 (–14 to 20)	5
Female	271	90	88	–2 (–24 to 19)	–3
May 16–June 15
Male	214	71	62	–9 (–28 to 9)	–13
Female	278	93	82	–11 (–32 to 10)	–12
March 15–April 14
Age < 30	82	27	22	–5 (–16 to 6)	–19
Age 30–49	105	35	28	–7 (–19 to 5)	–20
Age 50–69	190	63	48	–15 (–32 to 1)	–24
Age ≥ 70	146	49	31	–18 (–31 to –4)	–36
April 15–May 15
Age < 30	74	25	19	–6 (–16 to 5)	–23
Age 30–49	90	30	43	13 (–1 to 27)	43
Age 50–69	153	51	52	1 (–15 to 17)	2
Age ≥ 70	114	38	30	–8 (–21 to 5)	–21
May 16–June 15
Age < 30	95	32	27	–5 (–17 to 7)	–15
Age 30–49	107	36	37	1 (–12 to 15)	4
Age 50–69	181	60	53	–7 (–24 to 9)	–12
Age ≥ 70	109	36	27	–9 (–22 to 3)	–26