Table 1.
Country, Age, and Gender Weighted Prevalence of Respondents with Major Depressive Disorder (MDD) Measured Using 9-Item Patient Health Questionnaire (PHQ-9) and Anhedonia as Measured by 14-Item Snaith-Hamilton Pleasure Scale (SHAPS)
| Variables | Total Survey Sample | Total MDD Sample | Total Anhedonia Sample |
|---|---|---|---|
| N=38623 | n=6226 | n=3271 | |
| n (%) | n (%) | n (%) | |
| PHQ-9 | |||
| No Depression (0–4) | 24,403 (63.2) | 0 (0.0) | 0 (0.0) |
| Mild (5–9) | 5417 (14.0) | 0 (0.0) | 0 (0.0) |
| Moderate (10–14) | 3864 (10.0) | 2278 (36.6) | 919 (28.1) |
| Moderate-Severe (15–19) | 2697 (7.0) | 2104 (33.8) | 1076 (32.9) |
| Severe (20–27) | 2242 (5.8) | 1844 (29.6) | 1277 (39.0) |
| Presence of MDDa | 6226 (16.1) | 6226 (100.0) | 3271 (100.0) |
| SHAPSb | |||
| 0 | 1290 (3.3) | 1290 (20.7) | 0 (0.0) |
| 1–2 | 653 (1.7) | 653 (10.5) | 0 (0.0) |
| Presence of Anhedonia (≥3) | 3271 (8.5) | 3271 (52.5) | 3271 (100.0) |
Notes: aRespondents were classified under MDD if they reported Moderate Depression or greater (PHQ-9 ≥ 10) and a self-reported physician diagnosis of depression. bSHAPS was surveyed among respondents with Moderate Depression or greater and a self-reported physician diagnosis of depression. Prevalence weights were produced using UN population estimates for Australia, China, Japan, Malaysia, South Korea, and Taiwan.
Abbreviations: ANH, anhedonia; PHQ-9, 9-item Patient Health Questionnaire; MDD, major depressive disorder; SHAPS, 14-item Snaith-Hamilton Pleasure Scale.