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Table 3 Sensitivity analyses. Hazard Ratios and Confidence Intervals (95%) of incident depression according to the level of competitiveness, tension and dependency

From: Self-perceived level of competitiveness, tension and dependency and depression risk in the SUN cohort

  N Incident Low Moderate High P for trend
   depression (1–4) (5–6) (7–10)  
Competitiveness
 Main analyses Model 4 15,604 902 1 (ref) 0.84 (0.64–1.10) 0.78 (0.61–1.01) 0.105
 Excluding late cases (>  10 y of follow-up) 7319 310 1 (ref) 1.15 (0.72–1.85) 0.96 (0.61–1.53) 0.368
 Only men 6367 266 1 (ref) 1.00 (0.58–1.72) 0.86 (0.52–1.43) 0.338
 Only women* 9237 636 1 (ref) 0.78 (0.57–1.07) 0.78 (0.58–1.05) 0.311
 Age < 35 y 7550 444 1 (ref) 0.65 (0.46–0.92) 0.61 (0.44–0.84) 0.028
 Age ≥ 35 y** 8054 458 1 (ref) 1.22 (0.78–1.89) 1.09 (0.71–1.66) 0.714
 Excluding cancer and cardiovascular disease prevalent 14,853 857 1 (ref) 0.84 (0.64–1.11) 0.79 (0.61–1.02) 0.111
 Excluding early cases (2 first y) 15,354 652 1 (ref) 0.84 (0.62–1.15) 0.76 (0.56–1.02) 0.067
Tension
 Main analyses Model 4 15,604 902 1 (ref) 1.32 (1.07–1.62) 1.85 (1.52–2.24) < 0.001
 Excluding late cases (>  10 y of follow-up) 7319 310 1 (ref) 1.11 (0.79–1.57) 1.42 (1.03–1.96) 0.017
 Only men 6367 266 1 (ref) 1.11 (0.75–1.65) 1.88 (1.32–2.66) < 0.001
 Only women¥ 9237 636 1 (ref) 1.40 (1.10–1.80) 1.81 (1.43–2.28) < 0.001
 Age < 35 y 7550 444 1 (ref) 1.25 (0.95–1.66) 1.76 (1.36–2.29) < 0.001
 Age ≥ 35 y¥¥ 8054 458 1 (ref) 1.47 (1.08–2.00) 2.00 (1.50–2.67) < 0.001
 Excluding cancer and cardiovascular disease prevalent 14,853 857 1 (ref) 1.33 (1.07–1.65) 1.87 (1.53–2.29) < 0.001
 Excluding early cases (2 first y) 15,354 652 1 (ref) 1.36 (1.06–1.73) 1.86 (1.49–2.33) < 0.001
Dependency
 Main analyses Model 4 15,604 902 1 (ref) 1.24 (1.01–1.54) 1.23 (1.06–1.44) 0.004
 Excluding late cases (>  10 y of follow-up) 7319 310 1 (ref) 1.29 (0.89–1.88) 1.42 (1.10–1.84) 0.005
 Only men 6367 266 1 (ref) 1.53 (1.02–2.31) 1.32 (1.00–1.74) 0.026
 Only womenǂ 9237 636 1 (ref) 1.15 (0.90–1.47) 1.22 (1.01–1.47) 0.031
 Age < 35 y 7550 444 1 (ref) 1.16 (0.88–1.54) 1.06 (0.84–1.33) 0.503
 Age ≥ 35 yǂǂ 8054 458 1 (ref) 1.36 (0.99–1.87) 1.40 (1.13–1.72) 0.001
 Excluding cancer and cardiovascular disease prevalent 14,853 857 1 (ref) 1.30 (1.03–1.59) 1.30 (1.11–1.52) 0.001
 Excluding early cases (2 first y) 15,354 652 1 (ref) 1.23 (0.96–1.57) 1.18 (0.98–1.41) 0.052
  1. Model 1: Adjusted for age at recruitment (10 groups), sex, total energy intake (continuous variable)
  2. Model 2: Additionally adjusted for BMI (continuous variable), tobacco consumption (never, former, current smoker < 15 cigarettes per day, and current smoker > 15 cigarettes per day), alcohol consumption (continuous variable), total physical activity per week (continuous variable), sedentariness (continuous variable), Mediterranean diet score (continuous variable), total years of college (continuous variable), health professionals (yes, no), marital status (single, married, and others), employment status (employed, unemployed/ retired, homemaker and student), prevalence of diabetes (yes, no), prevalence of hypertension (yes, no), prevalence of hypercholesterolemia (yes, no), prevalence of cancer (yes, no)
  3. Model 3: Additionally adjusted for fast food consumption (continuous variable), trans fatty acids intake (continuous variable), nutritional supplements intake (yes, no), snack consumption between main meals (yes, no), and follows a special diet (yes, no)
  4. Model 4: Additionally adjusted for the other two personality traits according to assessed trait; competitiveness, (low, moderate, high), tension (low, moderate, high), o dependency (low, moderate, high)
  5. HR estimated with Cox regression and CI of 95%
  6. * p for interaction: 0.821; ** p for interaction: 0.087; ¥ p for interaction: 0.278; ¥¥p for interaction: 0.490; ǂ p for interaction: 0.363; ǂ ǂ p for interaction: 0.140;