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. 2013 Oct 29;12:159. doi: 10.1186/1476-511X-12-159

Table 3.

Pooled relative risks of all-cause mortality for categorical and continuous analyses in subgroups

Sub-groups Triglyceride group (mg/dl)
 Per 1 mmol/L TG
<90
 90-146
 150-199
 ≥200
  
N* RR (95% CI) N* RR† N* RR (95% CI) N* RR (95% CI) N* RR (95% CI)
Age (year)
  <50
 3
 0.88 (0.78, 1.00)
 5
 1.00
 5
 1.14 (1.05, 1.24)
 5
 1.20 (0.99, 1.46)
 8
 1.13 (1.05, 1.21)
  ≥50
 9
 0.97 (0.85, 1.11)
 9
 1.00
 9
 1.07 (0.97, 1.18)
 3
 1.20 (0.97, 1.48)
 14
 1.12 (1.07, 1.17)
  P value
  
 0.311
  
  
  
 0.329
  
 0.982
  
 0.845
Gender
  Male
 8
 0.95 (0.84, 1.09)
 9
 1
 9
 1.12 (1.02, 1.22)
 5
 1.23 (1.09, 1.38)
 14
 1.09 (1.04, 1.13)
  Female
 6
 0.91 (0.84, 0.99)
 6
 1
 6
 1.17 (0.99, 1.39)
 2
 1.01 (0.59, 1.74)
 10
 1.24 (1.15, 1.32)
  Mixed
 3
 1.00 (0.85, 1.17)
 4
 1
 4
 1.11 (1.01, 1.21)
 3
 1.17 (1.01, 1.35)
 6
 1.08 (1.03, 1.13)
  P value
  
 0.577
  
  
  
 0.621
  
 0.491
  
 0.001
Follow-up (year)
  <15
 6
 0.89 (0.84, 0.94)
 7
 1.00
 7
 1.11 (0.97, 1.26)
 4
 1.26 (1.06, 1.51)
 14
 1.05 (1.02, 1.07)
  ≥15
 6
 0.94 (0.79, 1.11)
 7
 1.00
 7
 1.09 (1.02, 1.16)
 4
 1.15 (0.93, 1.41)
 8
 1.22 (1.16, 1.29)
  P value
  
 0.569
  
  
  
 0.773
  
 0.490
  
 0.000
Fast status
  Fast
 8
 1.01 (0.86, 1.20)
 11
 1.00
 11
 1.08 (0.98, 1.18)
 5
 1.27 (1.09, 1.48)
 15
 1.12 (1.06, 1.19)
  Nonfast
 2
 0.91 (0.86, 0.98)
 3
 1.00
 3
 1.14 (1.04, 1.24)
 3
 1.11 (0.88, 1.40)
 6
 1.11 (1.03, 1.19)
  Others§
 2
 0.79 (0.63, 0.99)
 2
 1.00
 2
 1.11 (0.89, 1.38)
 0
 -
 1
 1.19 (1.09, 1.30)
  P value
  
 0.258
  
  
  
 0.381
  
 0.335
  
 0.740
Geographic location
  Europe/America
 10
 0.96 (0.87, 1.06)
 11
 1.00
 11
 1.09 (1.00,1.19)
 6
 1.19 (0.98, 1.45)
 16
 1.12 (1.06, 1.17)
  Asia-Pacific
 2
 0.81 (0.59, 1.11)
 3
 1.00
 3
 1.12 (1.02, 1.23)
 2
 1.22 (1.08, 1.39)
 6
 1.13 (1.08, 1.20)
  P value
  
 0.302
  
  
  
 0.633
  
 0.813
  
 0.640
Quality score
  <7
 5
 0.90 (0.86, 0.94)
 7
 1.00
 7
 1.15 (1.08, 1.24)
 4
 1.22 (1.07, 1.40)
 10
 1.13 (1.08, 1.18)
  7-9
 7
 0.95 (0.77, 1.17)
 7
 1.00
 7
 1.03 (0.91, 1.17)
 4
 1.19 (0.91, 1.57)
 12
 1.11 (1.05, 1.18)
  P value
  
 0.594
  
  
  
 0.116
  
 0.869
  
 0.707
Sample size
  <4000
 7
 0.97 (0.75, 1.25)
 7
 1.00
 7
 1.03 (0.92, 1.15)
 4
 1.22 (1.03, 1.45)
 13
 1.14 (1.07, 1.22)
  ≥4000
 5
 0.92 (0.86, 0.96)
 7
 1.00
 7
 1.14 (1.04, 1.24)
 4
 1.18 (0.95, 1.45)
 9
 1.09 (1.04, 1.14)
  P value
  
 0.729
  
  
  
 0.155
  
 0.778
  
 0.190
Free of CVDs at baseline
  Yes
 5
 0.94 (0.85, 1.03)
 6
 1.00
 6
 1.07 (0.99, 1.16)
 5
 1.24 (0.99, 1.56)
 13
 1.10 (1.04, 1.16)
  No
 7
 0.97 (0.80, 1.16)
 8
 1.00
 8
 1.10 (0.99, 1.23)
 3
 1.14 (1.00, 1.30)
 9
 1.13 (1.07, 1.20)
  P value
  
 0.711
  
  
  
 0.663
  
 0.519
  
 0.480
Adjustment
  Minimally
 9
 0.86 (0.72, 1.03)
 10
 1.00
 10
 1.14 (0.99, 1.30)
 7
 1.38 (1.13, 1.67)
 8
 1.12 (1.01, 1.24)
  Maximally
 9
 0.94 (0.80, 1.11)
 10
 1.00
 10
 1.07 (0.99, 1.17)
 7
 1.18 (1.01, 1.38)
 8
 1.07 (1.01, 1.13)
  P value
  
 0.466
  
  
  
 0.487
  
 0.222
  
 0.432
Adjustment for TC
  Yes
 5
 0.84 (0.7, 0.99)
 5
 1.00
 5
 1.03 (0.93, 1.14)
 2
 1.10 (0.88, 1.38)
 11
 1.10 (1.05, 1.15)
  No
 7
 1.00 (0.89, 1.12)
 9
 1.00
 9
 1.12 (1.02, 1.24)
 8
 1.27 (1.16, 1.40)
 11
 1.14 (1.07, 1.21)
  P value
  
 0.103
  
  
  
 0.225
  
 0.239
  
 0.382
Adjustment for HDL
  Yes
 2
 1.03 (0.93, 1.14)
 2
 1.00
 2
 1.02 (0.89, 1.17)
 1
 1.35 (1.09, 1.66)
 4
 1.07 (1.04, 1.11)
  No
 10
 0.92 (0.82, 1.02)
 12
 1.00
 12
 1.11 (1.03, 1.20)
 8
 1.14 (0.93, 1.39)
 18
 1.12 (1.07, 1.17)
  P value   0.115       0.296   0.250   0.132

*The number of cohorts.

†Reference group.

§Others included mixed and unknown ones.

RR, relative risk; CI, confidence interval; CVDs: cardiovascular diseases; HDL: high-density lipoprotein.

TG: triglycerides; TC: total cholesterol.