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Table 4 Adjusted blood pressure mean with 95 % confidence interval by tertiles of FA-factor scores in 2447 individuals

From: Exploratory serum fatty acid patterns associated with blood pressure in community-dwelling middle-aged and elderly Chinese

Factor scores (Dominant FA) n   Adjusted SBP Mean (95 % CI)    Adjusted DBP Mean (95 % CI)  
Initial modela Model 1b Model 2c Initial modela Model 1b Model 2c
Factor 1(14:0, 16:0, 16:1n-7, 18:2n-6, 18:3n-6, 20:3n-6)
T1 (<−0.46) 832 123.51 (123.07, 124.00) 123.48 (122.97, 124.01) 123.80 (122.26, 124.33) 80.30 (80.12, 80.57) 80.22 (79.85, 80.49) 80.33 (80.06, 80.61)
T2 (−0.46–0.30) 783 126.81 (126.31, 127.39) 126.89 (126.34, 127.45) 127.30 (126.30, 127.91) 81.23 (80.02, 81.44) 81.34 (81.07, 81.69) 81.60 (81.30, 81.89)
T3 (≥ 0.30) 832 130.33 (129.81, 130.88) 130.55 (129.98, 132.23) 131.11 (130.48, 131.75) 82.12 (81.81, 82.33) 82.24 (81.98, 82.54) 82.58 (82.27, 82.98)
P for trendd   0.006 0.007 0.016 0.019 0.038 0.030
Factor 2 (20:5n-3, 22:5n-3, 22:6n-3, 18:1n-9)
T1 (<−0.35) 831 129.72 (129.17, 130.26) 128.05 (127.46, 128.62) 127.80 (127.28, 128.32) 82.25 (82.05, 82.44) 82.27 (82.02, 82.53) 82.99 (82.59, 83.20)
T2 (−0.45–0.38) 807 126.87 (126.28, 127.45) 126.57 (126.01, 127.12) 126.43 (125.94, 126.92) 81.05 (80.86, 81.24) 81.03 (80.78, 81.29) 81.24 (80.95, 81.53)
T3 (≥ 0.38) 809 125.87 (125.34, 126.40) 126.36 (125.81, 126.90) 126.40 (125.91, 126.88) 80.12 (80.05, 80.34) 80.46 (80.20, 80.72) 79.84 (79.29, 80.35)
P for trendd   0.101 0.782 0.804 0.026 0.042 0.037
  1. FA fatty acid, n number of subjects, SBP systolic blood pressure, DBP diastolic blood pressure, CI confidence interval, T 3 the upper tertiles, T 1 the bottom tertiles
  2. aInitial model was adjusted for age, gender, BMI and hypertension
  3. bModel 1 was adjusted for covariates in the initial model plus smoking, alcohol intake, education, profession, exercise, and salt intake
  4. cModel 2 was adjusted for covariates in the model 1 plus family history, heart rate, triglyceride, total cholesterol and fasting blood-glucose level
  5. d P for trend was estimated by a multiple regression model, with ordinal numbers 0–2 assigned to tertile categories of each fatty acid