## Comparisons of variables by gender

Create a table in which you propose the calculation and graphs you will need to perform to answer the health question you are investigating. Then explain why you chose these calculations to explore your health question.
Health Question: To what extent does age influence length of hospital stay for MI patients? From the following Articles:
• Gender-specific characteristics of individuals with depressive symptoms and coronary heart disease.
Baseline characteristics
Comparisons of variables by gender
Of the 1951 patients with CHD with depressive symptoms above community norms, 691 (35.4%) were women. In contrast, among patients without depressive symptoms, 395 (26.9%) were women (P < .001). Sample demographic and clinical characteristics of patients with CHD with and without depressive symptoms are compared by gender inTables I and II. Among those with depressive symptoms, compared with men, women were older, more poorly educated, more likely to be single and not working, and more likely to have government-only or no health insurance. Compared with men with depressive symptoms, women with depressive symptoms were less likely to have a history of MI or revascularization by PCI or bypass surgery, or to have attended cardiac rehabilitation programs. Conversely, women with depressive symptoms were more likely to have angina and hypertension than men with depressive symptoms. With few exceptions, gender comparisons of the 2 samples (with and without depressive symptoms) were similar. The only differences between samples with and without depressive symptoms were for history of MI, angina, or cardiac rehabilitation attendance. In the sample without depressive symptoms, there were no gender differences in these clinical characteristics.
Table I.
Bivariate comparisons of demographic characteristics in men and women with coronary heart disease with and without depressive symptoms
Variable Sample without depressive symptoms (N = 1468)
________________________________________ Sample with depressive symptoms (N = 1951)
________________________________________
Male (N = 1073) Female (N = 1129) P Male (N = 1260) Female (N = 691) P
Mean (SD) Mean (SD) Mean (SD) Mean (SD)
Age y 67.4 (10.1) 69.6 (9.8) <.001 65.5 (11.6) 68.3 (11.5) <.001
N (%) N (%) OR (95% CI) N (%) N (%) OR (95% CI)
High school education or less 299 (27.9) 172 (43.5) 2.00 (1.57-2.54) <.001 438 (34.8) 379 (54.8) 2.28 (1.89-2.76) <.001
Single 197 (18.4) 195 (49.4) 4.34 (3.38-5.57) <.001 276 (21.9) 344 (49.8) 3.53 (2.89-4.32) <.001
Uninsured or government-only health insurance 494 (46.0) 639 (56.6) 1.39 (1.10-1.75) .006 610 (48.4) 389 (56.3) 1.37 (1.1-1.65) .001
Non-Caucasian 96 (8.9) 39 (9.9) 1.12 (.75-1.65) .586 100 (7.9) 58 (8.4) 1.06 (.7-1.49) .723
Not working 716 (66.7) 314 (79.5) 1.93 (1.47-2.55) <.001 840 (66.7) 577 (83.5) 2.53 (2.0-3.19) <.001
CI, confidence interval; OR, odds ratio; SD, standard deviation.
•Gender Differences in Self-Reported Symptoms of Depression among Patients with Acute Coronary Syndrome.
Table 1: Comparison of demographic and clinical health characteristics of acute coronary syndrome patients. Variables (n = 789) Women (n = 248) Men (n = 541) P value Age at consent 0.0013∗ M (year) ± SD 62.28 ± 12.03 64.31 ± 12.79 61.35 ± 11.56 Range 28–96 29–96 32–95 BMI 0.2995 M (lb/inch2) ± SD 30.13 ± 6.44 30.53 ± 7.91 29.95 ± 5.64 Range 16.47–58.57 16.47–61.33 18.09–58.57 BDI Score (0–63) < 0.05.