Characteristics of ever users and never users of marijuana among controls
| Characteristic . | Ever user % (N = 150) . | Never user % (N = 465) . |
|---|---|---|
| Birth year | ||
| 1919–1929 | 4.0 | 34.2 |
| 1930–1934 | 9.3 | 23.9 |
| 1935–1939 | 11.3 | 18.1 |
| 1940–1944 | 18.7 | 13.1 |
| 1945–1949 | 18.7 | 6.4 |
| 1950–1959 | 28.7 | 3.0 |
| 1960–1971 | 9.3 | 1.3 |
| Age (yrs) | ||
| 18–39 | 31.3 | 3.2 |
| 40–49 | 38.7 | 18.3 |
| 50–59 | 20.7 | 39.6 |
| 60–65 | 9.3 | 38.9 |
| Sex | ||
| Male | 78.7 | 69.2 |
| Female | 21.3 | 30.8 |
| Race | ||
| White | 93.3 | 94.4 |
| Black | 4.0 | 2.4 |
| Other | 2.7 | 3.2 |
| Incomea | ||
| <$15,000 | 11.5 | 3.9 |
| $15,000 to $29,999 | 16.2 | 22.1 |
| $30,000 to $44,999 | 24.3 | 26.1 |
| ≥$45,000 | 48.0 | 47.8 |
| Education | ||
| High school or less | 22.7 | 31.2 |
| Technical school | 4.7 | 6.2 |
| College | 50.7 | 48.6 |
| Graduate school | 22.0 | 14.0 |
| Cigarette smoking (pack-years)b | ||
| <1 | 31.3 | 40.6 |
| 1–9 | 18.0 | 14.9 |
| 10–19 | 14.7 | 10.8 |
| 20–29 | 17.3 | 10.6 |
| ≥30 | 18.7 | 23.1 |
| Alcohol consumption (drinks/week) | ||
| <1 | 13.3 | 31.0 |
| 1–7 | 36.7 | 45.2 |
| 8–14 | 17.3 | 13.6 |
| 15–28 | 20.0 | 6.3 |
| ≥29 | 12.7 | 3.9 |
| Cigarette smoking & alcohol consumptionb | ||
| <20 pack-years/<15 drinks/week | 48.0 | 63.5 |
| <20 pack-years/≥15 drinks/week | 16.0 | 2.8 |
| ≥20 pack-years/<15 drinks/week | 19.3 | 26.1 |
| ≥20 pack-years/≥15 drinks/week | 16.7 | 7.6 |
| Characteristic . | Ever user % (N = 150) . | Never user % (N = 465) . |
|---|---|---|
| Birth year | ||
| 1919–1929 | 4.0 | 34.2 |
| 1930–1934 | 9.3 | 23.9 |
| 1935–1939 | 11.3 | 18.1 |
| 1940–1944 | 18.7 | 13.1 |
| 1945–1949 | 18.7 | 6.4 |
| 1950–1959 | 28.7 | 3.0 |
| 1960–1971 | 9.3 | 1.3 |
| Age (yrs) | ||
| 18–39 | 31.3 | 3.2 |
| 40–49 | 38.7 | 18.3 |
| 50–59 | 20.7 | 39.6 |
| 60–65 | 9.3 | 38.9 |
| Sex | ||
| Male | 78.7 | 69.2 |
| Female | 21.3 | 30.8 |
| Race | ||
| White | 93.3 | 94.4 |
| Black | 4.0 | 2.4 |
| Other | 2.7 | 3.2 |
| Incomea | ||
| <$15,000 | 11.5 | 3.9 |
| $15,000 to $29,999 | 16.2 | 22.1 |
| $30,000 to $44,999 | 24.3 | 26.1 |
| ≥$45,000 | 48.0 | 47.8 |
| Education | ||
| High school or less | 22.7 | 31.2 |
| Technical school | 4.7 | 6.2 |
| College | 50.7 | 48.6 |
| Graduate school | 22.0 | 14.0 |
| Cigarette smoking (pack-years)b | ||
| <1 | 31.3 | 40.6 |
| 1–9 | 18.0 | 14.9 |
| 10–19 | 14.7 | 10.8 |
| 20–29 | 17.3 | 10.6 |
| ≥30 | 18.7 | 23.1 |
| Alcohol consumption (drinks/week) | ||
| <1 | 13.3 | 31.0 |
| 1–7 | 36.7 | 45.2 |
| 8–14 | 17.3 | 13.6 |
| 15–28 | 20.0 | 6.3 |
| ≥29 | 12.7 | 3.9 |
| Cigarette smoking & alcohol consumptionb | ||
| <20 pack-years/<15 drinks/week | 48.0 | 63.5 |
| <20 pack-years/≥15 drinks/week | 16.0 | 2.8 |
| ≥20 pack-years/<15 drinks/week | 19.3 | 26.1 |
| ≥20 pack-years/≥15 drinks/week | 16.7 | 7.6 |