Key terms

20s (n = 27)

30s (n = 93)

40s (n = 54)

50s (n = 39)

>60s (n = 16)

p value1)

p value2)

Clinical question

10 (37.0)

27 (29.0)

6 (11.1)

12 (30.8)

4 (25.0)

0.064

0.310

Research question

10 (37.0)

22 (23.7)

10 (18.5)

10 (25.6)

4 (25.0)

0.492

0.451

PICO/PECO

5 (18.5)

16 (17.2)

7 (13.0)

5 (12.8)

5 (31.3)

0.479

0.795

Outcome

45 (44.4)

36 (38.7)

13 (24.1)

10 (25.6)

6 (37.5)

0.205

0.115

Bias

22 (81.5)

65 (70.0)

33 (61.1)

22 (56.4)

11 (68.8)

0.219

0.071

Confounding

5 (18.5)

22 (23.7)

12 (22.2)

8 (20.5)

6 (37.5)

0.668

0.427

Reliability and validity

15 (55.6)

39 (41.9)

16 (29.6)

14 (35.9)

9 (56.3)

0.123

0.454

Observational study and Intervention Study

18 (66.7)

40 (43.0)

19 (35.2)

16 (41.0)

8 (50.0)

0.102

0.206

p value

17 (63.0)

57 (61.3)

30 (55.6)

14 (35.9)

8 (50.0)

0.088

0.021

95% Confidence interval

14 (51.9)

55 (59.1)

31 (57.4)

19 (48.7)

8 (50.0)

0.801

0.481