Table 3. Prevalence of sexual behaviors in the past 12 months.
| Variable | Having sexual partnera | Sexual events with casual partnersa | Frequency of sexual intercourse (/mo) | |||
|---|---|---|---|---|---|---|
| Men | Women | Men | Women | Men | Women | |
| Overall | 937/1,135 (82.6) | 903/1,031 (87.6) | 257 (22.6) | 26 (2.5) | 3.3±3.6 | 2.7±3.0 |
| Age (y) | ||||||
| 18–19 | 7/17 (41.2) | 11/17 (64.7) | 4/17 (23.5) | 1/17 (5.9) | 1.5±2.6 | 2.5±3.4 |
| 20–29 | 97/165 (58.8) | 99/126 (78.6) | 47/165 (28.5) | 5/126 (4.0) | 3.1±3.2 | 3.2±3.2 |
| 30–39 | 208/259 (80.3) | 200/219 (91.3) | 76/259 (29.3) | 7/219 (3.2) | 3.9±4.2 | 3.7±3.6 |
| 40–49 | 266/294 (90.9) | 246/268 (91.8) | 59/294 (20.1) | 4/268 (1.5) | 3.2±3.5 | 3.0±2.9 |
| 50–59 | 234/261 (89.7) | 224/253 (88.5) | 52/261 (19.9) | 6/253 (2.4) | 3.2±3.5 | 2.1±2.6 |
| 60–69 | 125/139 (89.9) | 123/148 (83.1) | 19/139 (13.7) | 3/148 (2.0) | 2.6±2.8 | 1.1±1.9 |
| Education level | ||||||
| Middle school or lower | 10/15 (66.7) | 31/42 (73.8) | 3/15 (20.0) | 1/42 (2.4) | 2.3±2.3 | 0.8±1.2 |
| High school or college | 255/322 (79.2) | 419/478 (87.7) | 69/322 (21.4) | 8/478 (1.7) | 3.1±3.7 | 2.7±3.0 |
| University or higher | 672/798 (84.2) | 453/511 (88.6) | 185/798 (23.2) | 17/511 (3.3) | 3.4±3.6 | 2.8±3.1 |
| Marital status | ||||||
| Currently married | 785/793 (97.4) | 771/794 (97.1) | 150/793 (18.9) | 18/794 (2.3) | 3.6±3.6 | 2.9±3.0 |
| Divorced or widowed | 14/47 (29.8) | 21/65 (32.3) | 17/47 (30.5) | 2/65 (3.1) | 1.7±3.4 | 1.0±3.0 |
| Never married | 138/295 (44.4) | 111/172 (64.5) | 90/295 (27.2) | 6/172 (3.5) | 2.6±3.5 | 2.4±3.0 |
| Monthly income ($) | ||||||
| <900 | 50/93 (53.8) | 113/141 (80.1) | 13/93 (14.7) | 1/141 (0.7) | 1.8±3.0 | 1.9±2.5 |
| 900–1,799 | 96/142 (67.6) | 228/270 (84.4) | 27/142 (18.4) | 4/270 (1.5) | 3.0±3.7 | 2.5±3.2 |
| 1,800–2,699 | 216/288 (75.2) | 195/226 (86.3) | 69/288 (24.0) | 12/226 (5.3) | 3.0±3.4 | 2.5±3.2 |
| 2,700–3,599 | 216/237 (90.3) | 140/153 (91.5) | 48/237 (23.1) | 4/153 (2.6) | 3.5±3.6 | 3.0±3.0 |
| 3,600–4,499 | 160/169 (93.5) | 101/109 (92.7) | 42/169 (24.9) | 2/109 (1.8) | 3.6±3.9 | 2.8±2.6 |
| ≥4,500 | 199/206 (96.5) | 126/132 (95.5) | 58/206 (29.2) | 3/132 (2.3) | 3.8±3.6 | 3.1±3.1 |
Values are presented as number/total number (%) or mean±standard deviation.
aProportions were the results from respondents who had experienced sexual intercourse.