Table 4.
Overall mortality by body size and physical activity at different ages among men in the Golestan Cohort Study
| n (person-year) | deaths (MR) | crude HR (95% CI) | adjusted HR (95% CI) | |
|---|---|---|---|---|
| Body size at 15 | ||||
| 1 | 2,156 (10794) | 157 (1454) | 1.18 (0.98,1.05) | 1.15 (0.94,1.39) |
|
| ||||
| 2 | 5,482 (27686) | 306 (1105) | 1 | 1 |
|
| ||||
| 3 | 6,435 (32615) | 369 (1131) | 1.05 (0.90,1.22) | 1.03 (0.89,1.20) |
|
| ||||
| 4 | 4,086 (20250) | 289 (1427) | 1.23 (1.05,1.44)* | 1.16 (0.99,1.37) |
|
| ||||
| 5 | 1,897 (9344) | 170 (1819) | 1.36 (1.13,1.64)** | 1.22 (1.01,1.47)* |
|
| ||||
| >=6 | 1,149 (5509) | 147 (2668) | 1.51 (1.24,1.85)** | 1.36 (1.11,1.66)** |
|
| ||||
| per 1 level increase | 1.05 (1.01–1.09)* | |||
|
| ||||
| Body size at 30 | ||||
| 1 | 298 (1485) | 26 (1750) | 1.40 (0.93,2.12) | 1.32 (0.87,1.99) |
|
| ||||
| 2 | 2,651 (13350) | 161 (1205) | 1 | 1 |
|
| ||||
| 3 | 6,711 (33834) | 383 (1131) | 1.01 (0.84,1.22) | 1.08 (0.90,1.30) |
|
| ||||
| 4 | 6,841 (34336) | 427 (1243) | 1.09 (0.91,1.31) | 1.16 (0.96,1.39) |
|
| ||||
| 5 | 3,472 (17232) | 295 (1711) | 1.25 (1.03,1.51)* | 1.29 (1.07,1.57)* |
|
| ||||
| >=6 | 1,235 (5975) | 146 (2443) | 1.48 (1.18,1.85)** | 1.46 (1.16,1.82)** |
|
| ||||
| per 1 level increase | 1.08 (1.04–1.13)** | |||
|
| ||||
| Body size at cohort baseline | ||||
| 1 | 984 (4954) | 141 (2846) | 1.33 (1.09,1.63)* | 1.22 (0.99,1.49) |
|
| ||||
| 2 | 3,189 (16027) | 284 (1772) | 1 | 1 |
|
| ||||
| 3 | 4,759 (23833) | 293 (1229) | 0.78 (0.66,0.92)** | 0.85 (0.72,1.00)* |
|
| ||||
| 4 | 5,729 (28615) | 321 (1121) | 0.75 (0.64,0.88)** | 0.87 (0.75,1.03) |
|
| ||||
| 5 | 4,365 (21833) | 240 (1099) | 0.76 (0.64,0.90)** | 0.93 (0.78,1.12) |
|
| ||||
| >=6 | 2,179 (10940) | 158 (1444) | 0.91 (0.75,1.10) | 1.11 (0.91,1.35) |
|
| ||||
| per 1 level increase | 0.99 (0.95–1.02) | |||
|
| ||||
| Level of work activity at 15 | ||||
| 1 | 4,176 (21414) | 249 (1162) | 0.94 (0.82,1.08) | 1.03 (0.89,1.19) |
|
| ||||
| 2 | 764 (4201) | 64 (1523) | 1.13 (0.88,1.46) | 1.19 (0.92,1.54) |
|
| ||||
| 3 | 1,197 (6515) | 87 (1335) | 1.06 (0.85,1.32) | 1.12 (0.89,1.40) |
|
| ||||
| 4 | 15,097 (74206) | 1043 (1405) | 1 | 1 |
|
| ||||
| per 1 level increase | 0.98 (0.94–1.03) | |||
|
| ||||
| Level of work activity at 30 | ||||
| 1 | 229 (1186) | 20 (1686) | 1.10 (0.70,1.71) | 1.32 (0.84,2.06) |
|
| ||||
| 2 | 2,107 (11656) | 128 (1098) | 0.90 (0.75,1.08) | 1.12 (0.90,1.39) |
|
| ||||
| 3 | 2,343 (12544) | 142 (1132) | 0.99 (0.83,1.18) | 1.05 (0.87,1.26) |
|
| ||||
| 4 | 16,555 (80950) | 1153 (1424) | 1 | 1 |
|
| ||||
| per 1 level increase | 0.94 (0.86–1.02) | |||
|
| ||||
| Level of work activity at cohort baseline | ||||
| 1 | 636 (3203) | 94 (2934) | 1.60 (1.29,1.98)** | 1.51 (1.21,1.88)** |
|
| ||||
| 2 | 2,320 (12795) | 152 (1187) | 0.93 (0.78,1.10) | 1.19 (0.96,1.46) |
|
| ||||
| 3 | 3,072 (16357) | 182 (1112) | 0.91 (0.77,1.06) | 0.95 (0.81,1.13) |
|
| ||||
| 4 | 15,206 (73981) | 1015 (1371) | 1 | 1 |
|
| ||||
| per 1 level increase | 0.89 (0.84–0.95)** | |||
HR: hazard ratio; MR: mortality rate; Cox regression models adjusted for age, smoking, socioeconomic status, ethnicity, residence, education, opium and number of pregnancies. Body size analyses also adjusted for physical activity at the same age, and vice versa.
*
p<0.01,
**
p<0.001