Table 2.
Twelve-month prevalence of PN in the three surveys.
| 2019 (pre-pandemic) | 2020 (during pandemic) | 2021 (during pandemic) | |
|---|---|---|---|
| All participants, n | |||
| 3,984 | 2,796 | 1,232 | |
| 12-month prevalence, n (%) | 416 (10.4) | 316 (11.3) | 98 (8.0) |
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