Table 1.
Descriptive Statistics of the Participants (n = 762).
| Variables * | n (%) | ||
|---|---|---|---|
| Gender (n = 753) | Male | 434 (57.6) | |
| Female | 319 (42.4) | ||
| Age (n = 746) | 12 | 38 (5.1) | |
| 13 | 93 (12.5) | ||
| 14 | 117 (15.7) | ||
| 15 | 146 (19.6) | ||
| 16 | 175 (23.5) | ||
| 17 | 104 (13.9) | ||
| 18 | 57 (7.6) | ||
| 19 | 13 (1.7) | ||
| 20 | 3 (0.4) | ||
| Grade in school (n = 758) ** | Form 1 | 159 (21.0) | |
| Form 2 | 165 (21.8) | ||
| Form 3 | 172 (22.7) | ||
| Form 4 | 128 (16.9) | ||
| Form 5 | 134 (17.7) | ||
| Monthly household income **,# # (n = 708) | Below HK$4000 | 62 (8.8) | |
| HK$4000–14,999 | 432 (61.1) | ||
| HK$15,000 + | 214 (30.2) | ||
| Parental education level: Father (n = 607) | Primary or lower | 117 (19.2) | |
| Secondary | 450 (74.2) | ||
| Tertiary | 40 (6.6) | ||
| Parental education level: Mother (n = 611) | Primary or lower | 144 (23.6) | |
| Secondary | 436 (71.4) | ||
| Tertiary | 31 (5.1) | ||
| Perceived general health condition in the past 1 month (n = 727) | Very good | 134 (18.4) | |
| Good | 323 (44.4) | ||
| Fair | 226 (31.1) | ||
| Poor | 44 (6.1) | ||
| Experienced somatic pain in the past 1 month (n = 667) | Yes | 348 (55.2) | |
| No | 283 (44.8) | ||
| Other disease that required medical follow up (n = 754) | Yes | 41 (5.4) | |
| No | 713 (94.6) | ||
Notes: * The total for all variables may not add up to 762 due to missing data. The percentage of missing data is as high as 7%; ** Forms 1 to 5 are equivalent to the 7th to 11th grades in the U.S. education system; *** Monthly household income is categorized based on the categories in the Census and Statistics Department’s Household Income Distribution in Hong Kong [51]; # U.S.$1 is rated at HK$7.8; ## According to the 2006 Census, the percentages of those in the income groups of below HK$4000, HK$4000–$14,999, and HK$ ≥ 15,000 are 11.7, 56.9, and 31.5, respectively.