Table 4.
Associations of housework participation with cancer and cardiovascular mortality
| Total a | Men b | Women b | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Exposed | Deaths | Exposed | Deaths | Exposed | Deaths | ||||||||||
| Person-years | N | Per 100 person-years | HR (95%CI) | P value | Person-years | N | Per 100 person-years | HR (95%CI) | P value | Person-years | N | Per 100 person-years | HR (95%CI) | P value | |
| Cancer mortality | |||||||||||||||
| Light housework (cut-off ≥420 min/week) | |||||||||||||||
| Low at BL & FU | 6981 | 63 | 0.9 | 1 (Ref) | NA | 4237 | 47 | 1.11 | 1 (Ref) | NA | 2744 | 16 | 0.58 | 1 (Ref) | NA |
| High at BL/FU only | 11926 | 57 | 0.48 | 0.73 (0.48-1.13) | 0.156 | 4219 | 28 | 0.66 | 0.69 (0.39-1.21) | 0.184 | 7707 | 29 | 0.38 | 0.79 (0.39-1.58) | 0.488 |
| High at BL & FU | 9434 | 26 | 0.28 | 0.42 (0.16-1.12) | 0.077 | 1654 | 9 | 0.54 | 0.42 (0.14-1.22) | 0.103 | 7780 | 17 | 0.22 | 0.44 (0.14-1.37) | 0.138 |
| Linear trend, p value | 0.051 | 0.071 | 0.127 | ||||||||||||
| Heavy housework (cut-off >0 min/week) | |||||||||||||||
| Low at BL & FU | 10575 | 75 | 0.71 | 1 (Ref) | NA | 4295 | 47 | 1.09 | 1 (Ref) | NA | 6280 | 28 | 0.45 | 1 (Ref) | NA |
| High at BL/FU only | 12761 | 58 | 0.45 | 0.79 (0.30-2.06) | 0.563 | 4183 | 28 | 0.67 | 0.71 (0.26-1.92) | 0.435 | 8578 | 30 | 0.35 | 0.88 (0.27-2.93) | 0.803 |
| High at BL & FU | 5246 | 12 | 0.23 | 0.65 (0.11-4.02) | 0.563 | 1625 | 7 | 0.43 | 0.64 (0.10-3.99) | 0.564 | 3620 | 5 | 0.14 | 0.66 (0.06-6.83) | 0.648 |
| Linear trend, p value | 0.532 | 0.447 | 0.683 | ||||||||||||
| Cardiovascular mortality | |||||||||||||||
| Light housework (cut-off ≥420 min/week) | |||||||||||||||
| Low at BL & FU | 6992 | 73 | 1.04 | 1 (Ref) | NA | 4263 | 54 | 1.27 | 1 (Ref) | NA | 2729 | 19 | 0.7 | 1 (Ref) | NA |
| High at BL/FU only | 11898 | 55 | 0.46 | 0.68 (0.37-1.25) | 0.191 | 4185 | 30 | 0.72 | 0.62 (0.33-1.18) | 0.134 | 7714 | 25 | 0.32 | 0.84 (0.26-2.64) | 0.725 |
| High at BL & FU | 9450 | 27 | 0.29 | 0.46 (0.22-0.96) | 0.041* | 1662 | 8 | 0.48 | 0.55 (0.19-1.60) | 0.244 | 7788 | 19 | 0.24 | 0.51 (0.17-1.55) | 0.208 |
| Linear trend, p value | 0.051 | 0.118 | 0.190 | ||||||||||||
| Heavy housework (cut-off >0 min/week) | |||||||||||||||
| Low at BL & FU | 10622 | 81 | 0.76 | 1 (Ref) | NA | 4334 | 51 | 1.18 | 1 (Ref) | NA | 6288 | 30 | 0.48 | 1 (Ref) | NA |
| High at BL/FU only | 12680 | 59 | 0.47 | 0.82 (0.24-2.88) | 0.694 | 4149 | 31 | 0.75 | 0.79 (0.14-4.45) | 0.717 | 8531 | 28 | 0.33 | 0.91 (0.31-2.72) | 0.844 |
| High at BL & FU | 5280 | 17 | 0.32 | 0.50 (0.03-8.27) | 0.517 | 1621 | 10 | 0.62 | 0.37 (0.01-13.70) | 0.479 | 3659 | 7 | 0.19 | 0.66 (0.05-8.70) | 0.676 |
| Linear trend, p value | 0.535 | 0.510 | 0.711 | ||||||||||||
a Adjusted for age, sex, ethnicity, socioeconomic status (housing type), education, brisk walking and sports activities at baseline, nutritional risk, smoking, alcohol, marital status
b Adjusted for age, ethnicity, socioeconomic status (housing type), education, brisk walking and sports activities at baseline, nutritional risk, smoking, alcohol, marital status
BL Baseline, FU Follow-up, Ref Reference hazard ratio of 1.00, HR Hazard Ratio, CI Confidence Interval
*Statistically significant at p<0.05