Corrigenda and Addenda
doi:10.2196/39498
In “The Transition of Social Isolation and Related Psychological Factors in 2 Mild Lockdown Periods During the COVID-19 Pandemic in Japan: Longitudinal Survey Study” (JMIR Public Health Surveill 2022;8(3):e32694) the authors noted one error.
In Table 2 of the originally published article, the standard deviations of the PHQ-9 in phases 1 and 2 in the 'Persistent-SI' group were missed. The table was originally published as shown in .
The 2 SD values were 5.93 and 6.07, respectively, and the corrected Table 2 is as follows:
| Phase | Mean score (SD) | Effect of phase | Effect of group | Interaction | |||||||||||||
| No SI | Improved SI | Worsened SI | Persistent SI | F (df) | P value | ηG2c | F (df) | P value | ηG2 | F (df) | P value | ηG2 | |||||
| LSNS-6d | |||||||||||||||||
| 1 | 16.84 (3.71) | 7.89 (2.77) | 14.58 (2.73) | 5.50 (3.31) | 15.18 (1, 7889) | <.001 | 0.000 | 8071.80 (3, 7889) | <.001 | 0.640 | 2046.36 (3, 7889) | <.001 | 0.066 | ||||
| 2 | 16.46 (3.55) | 14.56 (2.83) | 7.81 (2.93) | 5.21 (3.28) | N/Ae | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ||||
| UCLA-LS3f | |||||||||||||||||
| 1 | 19.56 (4.67) | 23.07 (4.61) | 22.26 (4.55) | 26.41 (5.20) | 10.51 (1, 7889) | .001 | 0.000 | 1096.28 (3, 7889) | <.001 | 0.259 | 38.59 (3, 7889) | <.001 | 0.002 | ||||
| 2 | 19.87 (4.86) | 22.13 (4.76) | 23.38 (4.59) | 26.62 (5.33) | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ||||
| K6g | |||||||||||||||||
| 1 | 3.99 (4.38) | 5.23 (5.37) | 4.96 (4.88) | 6.12 (5.77) | 536.70 (1, 7889) | <.001 | 0.013 | 103.10 (3, 7889) | <.001 | 0.030 | 2.64 (3, 7889) | .048 | 0.000 | ||||
| 2 | 2.63 (4.01) | 3.37 (4.87) | 3.68 (4.82) | 4.71 (5.63) | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ||||
| PHQ-9h | |||||||||||||||||
| 1 | 3.05 (4.06) | 4.41 (5.39) | 4.19 (5.05) | 5.53 (5.93) | 168.90 (1, 7889) | <.001 | 0.004 | 126.46 (3, 7889) | <.001 | 0.038 | 2.32 (3, 7889) | .073 | 0.000 | ||||
| 2 | 2.4 (3.89) | 3.27 (5.19) | 3.49 (4.88) | 4.77 (6.07) | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ||||
aPhase 1: between May 11 and 12, 2020, in the final phase of the first state of emergency; phase 2: between February 24 and 28, 2021, in the final phase of the second state of emergency.
bSI: social isolation.
cηG2: 0.010, small; 0.060, medium; 0.140, large.
dLSNS-6: Lubben Social Network Scale (shortened version).
eN/A: not applicable.
fUCLA-LS3: University of California, Los Angeles (UCLA) Loneliness Scale, Version 3.
gK6: Kessler Psychological Distress Scale-6.
hPHQ-9: Patient Health Questionnaire-9.
The correction will appear in the online version of the paper on the JMIR Publications website on May 16, 2022, together with the publication of this correction notice. Because this was made after submission to PubMed, PubMed Central, and other full-text repositories, the corrected article has also been resubmitted to those repositories.
Original published version of “Table 2. Differences and interactions between phasesa and transition of SIb on different scales.”
DOCX File , 18 KBThis is a non–peer-reviewed article. submitted 11.05.22; accepted 12.05.22; published 16.05.22.
Copyright©Nagisa Sugaya, Tetsuya Yamamoto, Naho Suzuki, Chigusa Uchiumi. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 16.05.2022.
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