Table 1 Demographic variables of kidney stone formers during and before COVID-19

Number of visits

1625

672

 First-time visit

434 (26.7%)

142 (21.1%)

0.005** ^a

 Follow-up visit

1191 (73.3%)

530 (78.9%)

Age, Mean (SD)

48.68 (14.02)

48.29 (14.36)

0.707 ^b

 First-time visit

47.61 (14.07)

45.15 (14.35)

0.073 ^b

 Follow-up visit

50.37 (13.82)

51.83 (13.61)

0.324 ^b

Male patients, Number (%)

1033 (71.4%)

413 (28.6%)

0.341 ^a

 First-time visit

265 (73.6%)

95 (26.4%)

0.212 ^a

 Follow-up visit

768 (70.7%)

318 (29.3%)

0.075 ^a