Table 3.
Multivariate-Adjusted Cox Proportional Hazards Models for Baseline Fasting Value of hs-GH Versus Incidence of CAD, Stroke, CHF, All-Cause Mortality, and Cardiovascular Mortality
Event | n | Sex | Continuous∗ |
Q1† |
Q2† |
Q3† |
Q4† |
Trend† |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
HR | 95% CI | p Value | HR‡ | HR∗ | 95% CI | p Value | HR‡ | 95% CI | p Value | HR‡ | 95% CI | p Value | HR‡ | 95% CI | p Value | |||
CAD | 397 | All | 1.11 | 1.01–1.23 | 0.04 | 1.00 (ref) | 1.10 | 0.83–1.47 | 0.50 | 1.05 | 0.77–1.42 | 0.76 | 1.33 | 0.99–1.79 | 0.05 | 1.09 | 0.99–1.19 | 0.08 |
247 | Male | 1.17 | 1.04–1.33 | 0.01 | 1.00 (ref) | 0.92 | 0.64–1.33 | 0.66 | 0.93 | 0.63–1.39 | 0.74 | 1.45 | 1.01–2.08 | 0.05 | 1.14 | 1.01–1.29 | 0.03 | |
150 | Female | 1.02 | 0.86–1.21 | 0.81 | 1.00 (ref) | 1.41 | 0.90–2.21 | 0.13 | 1.23 | 0.76–1.97 | 0.39 | 1.06 | 0.63–1.78 | 0.83 | 1.00 | 0.86–1.17 | 0.96 | |
Stroke | 251 | All | 1.18 | 1.04–1.34 | 0.01 | 1.00 (ref) | 1.16 | 0.80–1.70 | 0.43 | 1.37 | 0.94–2.01 | 0.10 | 1.52 | 1.04–2.23 | 0.03 | 1.15 | 1.02–1.30 | 0.02 |
132 | Male | 1.21 | 1.02–1.43 | 0.02 | 1.00 (ref) | 1.03 | 0.61–1.74 | 0.92 | 1.03 | 0.59–1.81 | 0.91 | 1.53 | 0.91–2.56 | 0.11 | 1.16 | 0.98–1.36 | 0.08 | |
119 | Female | 1.16 | 0.95–1.41 | 0.15 | 1.00 (ref) | 1.32 | 0.77–2.27 | 0.32 | 1.78 | 1.05–3.02 | 0.03 | 1.51 | 0.85–2.71 | 0.16 | 1.17 | 0.98–1.39 | 0.08 | |
CHF | 107 | All | 1.25 | 1.03–1.52 | 0.02 | 1.00 (ref) | 1.42 | 0.76–2.67 | 0.27 | 2.19 | 1.20–4.01 | 0.01 | 1.90 | 1.01–3.56 | 0.05 | 1.24 | 1.03–1.49 | 0.02 |
56 | Male | 1.07 | 0.83–1.39 | 0.59 | 1.00 (ref) | 1.08 | 0.44–2.65 | 0.87 | 1.91 | 0.82–4.48 | 0.14 | 1.42 | 0.60–3.36 | 0.43 | 1.15 | 0.90–1.48 | 0.27 | |
51 | Female | 1.48 | 1.08–2.04 | 0.02 | 1.00 (ref) | 1.77 | 0.74–4.25 | 0.20 | 2.45 | 1.04–5.78 | 0.04 | 2.28 | 0.89–5.82 | 0.08 | 1.30 | 0.99–1.71 | 0.05 | |
Total mortality | 645 | All | 1.17 | 1.08–1.26 | <0.001 | 1.00 (ref) | 0.93 | 0.73–1.19 | 0.58 | 1.27 | 1.00–1.61 | 0.05 | 1.45 | 1.15–1.83 | 0.002 | 1.16 | 1.08–1.25 | <0.001 |
341 | Male | 1.25 | 1.13–1.39 | <0.001 | 1.00 (ref) | 1.19 | 0.82–1.72 | 0.36 | 1.66 | 1.15–2.40 | 0.006 | 2.05 | 1.44–2.92 | <0.001 | 1.29 | 1.16–1.43 | <0.001 | |
304 | Female | 1.04 | 0.92–1.18 | 0.50 | 1.00 (ref) | 0.77 | 0.55–1.08 | 0.13 | 1.05 | 0.76–1.44 | 0.77 | 1.02 | 0.73–1.42 | 0.93 | 1.04 | 0.93–1.16 | 0.52 | |
CVD mortality | 186 | All | 1.43 | 1.24–1.66 | <0.001 | 1.00 (ref) | 1.33 | 0.79–2.24 | 0.28 | 2.13 | 1.30–3.51 | 0.003 | 2.83 | 1.74–4.61 | <0.001 | 1.43 | 1.24–1.65 | <0.001 |
105 | Male | 1.44 | 1.20–1.72 | <0.001 | 1.00 (ref) | 1.51 | 0.71–3.20 | 0.28 | 2.26 | 1.08–4.73 | 0.03 | 3.32 | 1.65–6.70 | <0.001 | 1.49 | 1.23–1.81 | <0.001 | |
81 | Female | 1.45 | 1.12–1.88 | 0.004 | 1.00 (ref) | 1.13 | 0.54–2.36 | 0.75 | 2.04 | 1.04–4.03 | 0.04 | 2.36 | 1.16–4.80 | 0.02 | 1.38 | 1.11–1.72 | 0.004 |
1 model with continuous values of high-sensitivity growth hormone (hs-GH) and 1 with cohort split into sex-specific quartiles of hs-GH. In total, 4,323 (1,778 males, 2,545 females) individuals available for analysis in all models.
CAD = coronary artery disease; CHF = congestive heart failure; CVD = cardiovascular disease; other abbreviations as in Table 1.
Hazard ratios (HRs) in continuous (95% confidence interval [CI]) are expressed per 1 SD increment of the natural logarithm of hs-GH. Values of hs-GH are standardized separately in men and women, and this same sex-specific standardization is used in the combined analyses.
Quartile 1 (Q1) represents the quartile with the lowest values of fasting hs-GH. Males and females are divided into the quartiles separately, which makes the male/female ratio similar in the quartiles, but the cut-off values different in the different sexes.
HRs (95% CI) in quartile analysis are expressed vs. the HR in Q1, except in “trend” where HR is expressed per 1 increment of quartile. Variables adjusted for in the analysis: age, systolic blood pressure, use of antihypertensive medication, BMI (weight [kg] divided by height [m2]), prevalence of diabetes mellitus, current smoking, and fasting values of HDL-C and LDL-C. In addition, adjusted for sex in the sex-combined analyses.