Table 1 General characteristics of the subjects at baseline (n = 185)
From: Progression of erectile function in men with chronic obstructive pulmonary disease: a cohort study
Characteristics (continuous variables) | Mean | SD |
|---|---|---|
Age (years) | 65.4 | 7.3 |
BMI (kg/m2) | 23.1 | 3.3 |
Income (US dollars/month) | 2,230.9 | 1,850.2 |
Smoking history (pack year) | 22.6 | 12.8 |
Number of comorbidities | 0.5 | 0.4 |
Number of respiratory symptoms | 2.6 | 1.4 |
Number of exacerbation in last year | 0.77 | 2.45 |
FEV1 (L) | 1.62 | 0.53 |
FEV1 (predicted %) | 59.94 | 18.34 |
FVC (L) | 3.45 | 0.78 |
FEV1/FVC (%) | 46.84 | 10.66 |
6MWD (m) | 447.2 | 78.4 |
mMRC dyspnea scale score | 1.5 | 0.9 |
BODE index score | 2.08 | 1.79 |
BAI score | 6.01 | 7.55 |
BDI score | 9.10 | 9.37 |
Self-rate health status | 2.25 | 0.78 |
IIEF-5 score at baseline | 10.79 | 5.30 |
IIEF-5 score at 12 months | 10.92 | 5.28 |
IIEF-5 score at 24 months | 9.68 | 5.69 |
IIEF-5 score at 36 months | 8.45 | 4.38 |
IIEF-5 score at 48 months | 7.72 | 4.39 |
Characteristics (categorical variables) | n | % |
Education level | ||
≥ bachelor’s degree | 41 | 22.1 |
high school | 66 | 35.7 |
≤ middle school | 78 | 42.2 |
Current smoking | ||
yes | 59 | 31.9 |
no | 126 | 68.1 |
Current medication | ||
yes | 134 | 72.4 |
no | 51 | 27.6 |
Sleep disturbance | ||
yes | 53 | 28.6 |
no | 132 | 71.4 |
Emergency room visit in last year | ||
yes | 35 | 18.9 |
no | 150 | 81.1 |
Severity of COPD based on | ||
combined COPD assessment | ||
GOLD A (low risk, fewer symptoms) | 70 | 37.8 |
GOLD B (low risk, more symptoms) | 45 | 24.3 |
GOLD C (high risk, fewer symptoms) | 20 | 10.8 |
GOLD D (high risk, more symptoms) | 50 | 27.0 |
Baseline erectile function (IIEF-5 score) | ||
Normal (25–22) | 14 | 7.6 |
Mild (21–17) | 33 | 17.7 |
Mild-moderate (16–12) | 41 | 22.2 |
Moderate (11–8) | 26 | 14.1 |
Severe (≤7) | 71 | 38.4 |