1. The relative risks (and 95% confidence intervals) of developing high blood pressure in a hypothetical cohort study that assessed fish intake were: Quintile 2: 1.07 (0.78, 1.20); Quintile 3: 1.06 (0.80, 1.17); Quintile 4: 0.72 (0.52, 0.96); Quintile 5: 0.94 (0.70, 1.22). Which of the following statements is TRUE:

A. Relative risk of high blood pressure was significantly lower for those with fish intakes in quintile 4, compared to those with the lowest quintile of fish intake.

B. Relative risk of high blood pressure did not differ significantly when comparing those with any level of higher intake compared to the lowest level of exposure.

C. Relative risk of high blood pressure was significantly lower for those with fish intakes in quintile 4 and quintile 5, compared to those with the lowest quintile of fish intake.

2. A recent study was interested in looking at the differences in lifestyle practices among adults who self-define as vegetarians compared to non-vegetarians. Below is a part of the study's first table describing the demographic characteristics of study participants. From Table 1, which of the following statements are TRUE about the findings from this study?

A. There are no statistically significant differences between vegetarians compared to non-vegetarians reported in this table

B. No statistically significant associations were found betweenvegetarians status and marital status

C. Vegetarian status was associated with age distribution,sex, and marital status and all three associations were statistically significant

D. Vegetarians are on average older than non-vegetarians

E. A higher proportion of vegetarians are male compared to non-vegetarians, and differences by sex are statistically significant

There were no statistically significant associations found between vegetarian status and income

Table I: Participant derivographics by vegetarian status Non-vegetarian in = Vegetarian (m = 104) Test Statadic! P value 171 1) Age (years, mean 1 $[) 44.0 1 0.4 41.5 1 1.8 F - 3.63 0.057 Age Group Y! -9.80 0.020 19 - 30 years 24.9% 38. 157 31 - 50 years 40.9%% 31.4% 50 -70 years 24.3X 71 + years 10.IN 10.5% Sex (% female] 49.2% 70.83 Y' = 1858 Marital status X' = 1755 100'0 Single 22.5% 35.257 Married 62.7% 50.5 5 Widowed 5.3% 10.5% Divorced'separated 9.5% 3.8% Education level 72 = 0.45 0.800 Secondary or less 33.3% 32.1% Technical or some university 16.25 University graduate 19.1% 21.7% Low income 220% 37.25 71 - 9.20 0.002