Characteristics of Subjects in the Second Survey
| Characteristics | Subjects without chest symptoms | Subjects with chest pain | P-value | |
|---|---|---|---|---|
| (n = 1240) | (n = 780) | |||
| Age (yr) | 44.8 ± 13.9 | 43.7 ± 14.0 | 0.084 | |
| Female | 620 (50) | 417 (53) | 0.142 | |
| Married | 683 (55) | 453 (58) | 0.202 | |
| Presence of children | 634 (51) | 407 (52) | 0.679 | |
| SF-8 | ||||
| PCS | 49.3 ± 6.9 | 47.0 ± 6.7 | < 0.001 | |
| MCS | 48.1 ± 8.0 | 44.7 ± 8.7 | < 0.001 | |
| GerdQ (–/+) | 1110/130 | 601/179 | < 0.001 | |
| HADS-A (–/+) | 899/341 | 386/394 | < 0.001 | |
| HADS-D (–/+) | 576/664 | 279/501 | < 0.001 | |
SF-8, Short Form-8; PCS, physical component summary score; MCS, mental component summary score; GerdQ, gastroesophageal reflux disease questionnaire; HADS-A, hospital anxiety and depression scale related to anxiety dimension; HADS-D, Hospital anxiety and depression scale related to depression dimension.
For GerdQ, HADS-A, and HADS-D, sores ≥ 8 were defined as positive.
Data are presented as mean ± SD, n (%), or n.