. 2021 Aug 31;4(8):e2125681. doi: 10.1001/jamanetworkopen.2021.25681

Table. Demographic Information for Patients With Newly Identified Cancer, by Time Period.

Cancer type	Prepandemic (January 2019-February 2020)			Pandemic period 1 (March-May 2020)			Pandemic period 2 (June-October 2020)			Pandemic period 3 (November 2020-March 2021)
Cancer type	Patients, No.	Women, No. (%)^a	Age, mean (SD), y	Patients, No.	Women, No. (%)	Age, mean (SD), y	Patients, No.	Women, No. (%)	Age, mean (SD), y	Patients, No.	Women, No. (%)	Age, mean (SD), y
Prostate	184999	0	71.2 (9.8)	29118	0	70.8 (9.5)^b	58181	0	71.0 (9.8)^c	52546	0	70.8 (9.8)^b
Breast	134157	134157 (100)	64.3 (12.7)	18367	18367 (100)	63.5 (12.9)^b	43237	43237 (100)	64.5 (12.8)^d	38856	38856 (100)	64.3 (12.9)
Colorectal	57411	28416 (49.6)	66.7 (13.4)	8109	3914 (48.3)	65.9 (13.3)^b	18881	9453 (50.1)	66.4 (13.5)^d	16520	8194 (49.7)	65.9 (13.3)^b
Lung	42212	22606 (53.6)	70.1 (10.6)	6955	3667 (52.8)	69.6 (10.6)^b	14423	7796 (54.2)	70.3 (10.5)	12252	6468 (52.9)	70.2 (10.5)
Pancreatic	16484	8185 (49.7)	67.6 (12.7)	2782	1427 (51.3)	67.6 (12.5)	5638	2782 (49.4)	68.3 (12.2)^b	5320	2655 (50.0)	67.8 (12.3)
Cervical	6905	6905 (100)	54.5 (14.7)	1092	1092 (100)	53.3 (14.5)^d	2283	2283 (100)	54.1 (15.0)	2049	2049 (100)	53.5 (14.8)^d
Gastric	5815	2487 (42.8)	67.4 (13.5)	861	350 (40.7)	66.7 (13.7)	1915	782 (40.9)	67.0 (13.7)	1678	694 (41.4)	66.3 (13.7)^c
Esophageal	5729	1373 (24.0)	68.5 (11.4)	962	241 (25.1)	69.0 (10.9)	1960	496 (25.3)	68.6 (11.5)	1799	455 (25.3)	68.7 (10.9)

^{^a}

Sex distribution compared to prepandemic period: P = .03 (pandemic period 1) for colorectal cancer; not applicable or P ≥ .10 for all other cancers across all pandemic periods.

^{^b}

Age difference compared to prepandemic period: P < .001.

^{^c}

Age difference compared to prepandemic period: P < .01.

^{^d}

Age difference compared to prepandemic period: P < .05.