Table 4.
Stratified analysis of associations between the WtHR and WC with all-cause mortality.
| Subgroups | WtHR | WC | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Tertile 1 | Tertile 2 | Tertile 3 | P for trend | P for interaction | Tertile 1 | Tertile 2 | Tertile 3 | P for trend | P for interaction | |
| Age group (years) | ||||||||||
| 20–39 | 1.00 | 1.09 (0.59–2.01) |
1.25 (0.56–2.82) |
0.580 | <0.001 | 1.00 | 1.06 (0.53–2.12) |
1.58 (0.75–3.33) |
0.190 | <0.001 |
| 40–59 | 1.00 | 1.31 (1.01–1.70) |
2.48 (1.66–3.68) |
<0.001 | 1.00 | 1.17 (0.87–1.57) |
1.77 (1.19–2.64) |
0.004 | ||
| ≥60 | 1.00 | 1.19 (1.03–1.37) |
1.74 (1.43–2.13) |
<0.001 | 1.00 | 1.09 (0.96–1.25) |
1.22 (1.02–1.47) |
0.031 | ||
| Sex | ||||||||||
| Men | 1.00 | 1.40 (1.18–1.66) |
2.37 (1.82–3.08) |
<0.001 | 0.312 | 1.00 | 1.22 (1.01–1.47) |
1.57 (1.23–2.01) |
<0.001 | 0.507 |
| Women | 1.00 | 1.22 (1.03–1.45) |
1.62 (1.29–2.04) |
<0.001 | 1.00 | 1.09 (0.92–1.29) |
1.25 (0.98–1.59) |
0.070 | ||
| Race/ethnicity | ||||||||||
| Hispanic | 1.00 | 1.04 (0.77–1.40) |
1.59 (1.04–2.44) |
0.021 | 0.491 | 1.00 | 0.96 (0.75–1.21) |
1.22 (0.86–1.72) |
0.230 | 0.345 |
| Non-Hispanic White | 1.00 | 1.37 (1.17–1.60) |
2.16 (1.74–2.68) |
<0.001 | 1.00 | 1.18 (1.02–1.37) |
1.42 (1.15–1.75) |
0.001 | ||
| Non-Hispanic Black | 1.00 | 1.25 (0.93–1.68) |
2.01 (1.35–3.00) |
<0.001 | 1.00 | 1.23 (0.95–1.60) |
1.43 (1.04–1.97) |
0.030 | ||
| Other race | 1.00 | 0.88 (0.46–1.69) |
0.71 (0.26–1.97) |
0.525 | 1.00 | 0.85 (0.46–1.56) |
1.06 (0.36–3.15) |
0.951 | ||
| Education | ||||||||||
| Grades 0–12 | 1.00 | 0.97 (0.81–1.16) |
1.48 (1.13–1.94) |
0.003 | <0.001 | 1.00 | 1.00 (0.83–1.20) |
1.16 (0.92–1.45) |
0.199 | 0.002 |
| High school/GED | 1.00 | 1.45 (1.11–1.89) |
2.52 (1.67–3.79) |
<0.001 | 1.00 | 1.11 (0.83–1.47) |
1.41 (0.97–2.05) |
0.056 | ||
| Some college or above | 1.00 | 1.47 (1.21–1.80) |
2.13 (1.63–2.77) |
<0.001 | 1.00 | 1.32 (1.07–1.64) |
1.70 (1.26–2.29) |
<0.001 | ||
| Marital status | ||||||||||
| Married | 1.00 | 1.32 (1.09–1.59) |
2.02 (1.57–2.60) |
<0.001 | 0.635 | 1.00 | 1.21 (1.00–1.46) |
1.51 (1.17–1.95) |
0.001 | 0.349 |
| Widowed/Divorced/Separated | 1.00 | 1.15 (0.96–1.38) |
1.77 (1.42–2.19) |
<0.001 | 1.00 | 1.05 (0.88–1.25) |
1.31 (1.01–1.70) |
0.044 | ||
| Never married | 1.00 | 1.39 (0.84–2.29) |
1.96 (0.91–4.21) |
0.086 | 1.00 | 1.12 (0.66–1.88) |
1.08 (0.56–2.09) |
0.804 | ||
| Living with partner | 1.00 | 1.69 (0.90–3.17) |
2.07 (0.81–5.34) |
0.114 | 1.00 | 1.70 (0.93–3.10) |
1.48 (0.57–3.88) |
0.389 | ||
| Body mass index category | ||||||||||
| Normal weight | 1.00 | 1.18 (1.00–1.39) |
1.66 (1.04–2.64) |
0.021 | 0.308 | 1.00 | 1.20 (1.04–1.40) |
0.86 (0.48–1.52) |
0.034 | 0.197 |
| Overweight | 1.00 | 1.36 (1.07–1.74) |
2.01 (1.53–2.63) |
<0.001 | 1.00 | 1.09 (0.88–1.35) |
1.24 (0.97–1.58) |
0.046 | ||
| Obesity | 1.00 | 0.85 (0.11–6.45) |
1.46 (0.20–10.81) |
<0.001 | 1.00 | 0.49 (0.17–1.48) |
0.68 (0.22–2.15) |
0.023 | ||
| Smoking status | ||||||||||
| Never | 1.00 | 1.44 (1.19–1.73) |
1.92 (1.54–2.39) |
<0.001 | 0.849 | 1.00 | 1.13 (0.94–1.35) |
1.28 (1.01–1.61) |
0.036 | 0.197 |
| Former | 1.00 | 1.26 (1.04–1.53) |
1.96 (1.49–2.59) |
<0.001 | 1.00 | 1.30 (1.03–1.64) |
1.60 (1.18–2.17) |
0.003 | ||
| Current | 1.00 | 1.02 (0.75–1.39) |
1.79 (1.09–2.95) |
0.023 | 1.00 | 0.93 (0.68–2.26) |
1.31 (0.80–2.14) |
0.306 | ||
| Alcohol intake | ||||||||||
| Lifetime abstainers | 1.00 | 1.19 (0.97–1.47) |
1.68 (1.26–2.23) |
<0.001 | 0.263 | 1.00 | 1.05 (0.85–1.28) |
1.26 (0.95–1.66) |
0.098 | 0.484 |
| Former drinker | 1.00 | 1.41 (1.08–1.85) |
2.06 (1.46–2.92) |
<0.001 | 1.00 | 1.30 (0.99–1.70) |
1.76 (1.18–2.60) |
0.006 | ||
| Light to moderate | 1.00 | 1.26 (1.04–1.52) |
1.97 (1.43–2.70) |
<0.001 | 1.00 | 1.18 (0.96–1.45) |
1.45 (1.08–1.96) |
0.014 | ||
| Heavy | 1.00 | 1.27 (0.86–1.87) |
2.14 (1.16–3.94) |
0.016 | 1.00 | 0.94 (0.64–1.38) |
0.90 (0.50–1.60) |
0.705 | ||
| Hypertension | ||||||||||
| Yes | 1.00 | 1.18 (0.99–1.40) |
1.68 (1.32–2.15) |
<0.001 | <0.001 | 1.00 | 1.08 (0.89–1.31) |
1.26 (0.99–1.60) |
0.046 | 0.001 |
| No | 1.00 | 1.30 (1.09–1.57) |
2.20 (1.69–2.87) |
<0.001 | 1.00 | 1.15 (0.99–1.34) |
1.53 (1.21–1.93) |
<0.001 | ||
| Diabetes | ||||||||||
| Yes | 1.00 | 0.77 (0.53–1.13) |
1.02 (0.65–1.59) |
0.571 | 0.120 | 1.00 | 1.12 (0.81–1.54) |
1.22 (0.82–1.81) |
0.318 | 0.838 |
| No | 1.00 | 1.39 (1.23–1.57) |
2.20 (1.83–2.63) |
<0.001 | 1.00 | 1.15 (1.01–1.31) |
1.41 (1.14–1.74) |
0.002 | ||
| Heart disease | ||||||||||
| Yes | 1.00 | 1.45 (1.17–1.80) |
1.86 (1.39–2.50) |
<0.001 | 0.245 | 1.00 | 1.48 (1.14–1.93) |
1.51 (1.08–2.12) |
0.032 | 0.434 |
| No | 1.00 | 1.24 (1.08–1.43) |
2.00 (1.65–2.42) |
<0.001 | 1.00 | 1.05 (0.92–1.20) |
1.35 (1.09–1.68) |
0.006 | ||
| Stroke | ||||||||||
| Yes | 1.00 | 1.29 (0.89–1.86) |
1.35 (0.87–2.10) |
0.209 | 0.033 | 1.00 | 1.23 (0.84–1.81) |
1.22 (0.75–2.01) |
0.473 | 0.195 |
| No | 1.00 | 1.29 (1.11–1.48) |
2.05 (1.68–2.51) |
<0.001 | 1.00 | 1.13 (0.98–1.30) |
1.41 (0.17–1.71) |
<0.001 | ||
| Cancer | ||||||||||
| Yes | 1.00 | 1.21 (0.96–1.52) |
1.77 (1.30–2.41) |
<0.001 | 0.009 | 1.00 | 1.11 (0.86–1.41) |
1.08 (0.74–1.57) |
0.698 | <0.001 |
| No | 1.00 | 1.31 (1.12–1.53) |
2.01 (1.62–2.49) |
<0.001 | 1.00 | 1.16 (1.00–1.34) |
1.50 (1.22–1.84) |
<0.001 | ||
Values are weighted hazard ratio (95% confidence interval) unless stated otherwise.
WtHR, waist-to-height ratio; WC, waist circumference; GED, general equivalency diploma.
WtHR: Tertile 1, ≤ 0.54; Tertile 2, 0.55-0.62; Tertile 3, ≥0.63.
WC: Tertile 1, Men ≤ 0.93 cm, Women ≤ 0.88cm; Tertile 2, Men 0.94-1.05 cm, Women 0.89-1.02 cm; Tertile 3, Men ≥1.06cm, Women ≥1.03 cm.