Table 2.
Prevalence and scores of depression, anxiety, insomnia and any mental health symptoms at baseline and follow-up survey.
| Mental Health Symptoms | Number of Participants with Mental Health Symptoms (%, 95%CI) | Median Scores (IQR) | ||||||
|---|---|---|---|---|---|---|---|---|
| Baseline (N = 10,492) | Follow-Up (N = 10,492) | p-Value b | Baseline | Follow-Up | p-Value c | |||
| Unweighted | Weighted a | Unweighted | Weighted a | |||||
| Depression | 3071 (29.3, 28.4–30.2) | 3151 (30.0, 29.2–30.9) | 3421 (32.6, 31.7–33.5) | 3528 (33.6, 32.7–34.5) | <0.001 | 0.0 (0.0–6.0) | 0.0 (0.0–8.0) | <0.001 |
| Anxiety | 3654 (34.8, 33.9–35.7) | 3693 (35.2, 34.3–36.1) | 3320 (31.6, 30.8–32.5) | 3415 (32.5, 31.7–33.5) | <0.001 | 1.0 (0.0–7.0) | 0.0 (0.0–7.0) | <0.001 |
| Insomnia | 3066 (29.2, 28.4–30.1) | 3127 (29.8, 28.9–30.7) | 3610 (34.4, 33.5–35.3) | 3701 (35.3, 34.4–36.2) | <0.001 | 4.0 (1.0–8.0) | 4.0 (1.0–9.0) | <0.001 |
| Any mental health symptoms | 4815 (45.9, 44.9–46.9) | 4865 (46.4, 45.4–47.3) | 4627 (44.1, 43.1–45.1) | 4733 (45.1, 44.2–46.1) | 0.01 | - | - | - |
a Weight was estimated based on gender (male or female), age (18–39 years or ≥40 years), living area (urban or rural), educational level (lower than college school or college school or higher), marital status (married or unmarried), geographical regions and history of chronic diseases (yes or unknown/no) using the baseline sample. Depression is defined as having a Patient Health Questionnaire-9 score ≥ 5. Anxiety is defined as having a Generalized Anxiety Disorder-7 score ≥ 5. Insomnia is defined as having an Insomnia Severity Index score ≥ 8. Any mental health symptoms is defined as having either depression, anxiety or insomnia. b p-Values from McNemar χ2 tests comparing weighted prevalence at baseline and follow-up survey. c p-Values from paired-samples Wilcoxon tests comparing scores at baseline and follow-up survey.