Table 4.
Cox proportional hazards modeling for mortality [HRs (95% CIs)], interviewees only (n = 3,796).
| Variable | All causes of death (n = 620) | Neoplasms (n = 172) | Circulatory system (n = 272) | AMIa (n = 116) | Respiratory system (n = 49) | External causes of injury and poison (n = 42) |
|---|---|---|---|---|---|---|
| Open period, tier 1 or tier 2 (years) | 0.98 (0.89–1.08) | 0.86 (0.64–1.16) | 1.02 (0.92–1.15) | 1.01 (0.86–1.20) | 1.13 (0.92–1.38) | 0.89 (0.39–2.02) |
| Open period, tier 3 or tier 4 (years) | 0.99 (0.97–1.01) | 0.98 (0.94–1.02) | 1.00 (0.97–1.03) | 0.98 (0.94–1.03) | 0.99 (0.93–1.07) | 1.02 (0.94–1.12) |
| Closed period, tier 1 or tier 2 (years) | 1.00 (0.98–1.01) | 1.01 (0.98–1.03) | 1.00 (0.98–1.02) | 1.06b (1.01–1.12) | 0.98 (0.94–1.03) | 0.97 (0.91–1.04) |
| Closed period, tier 3 or tier 4 (years) | 1.00 (0.99–1.01) | 1.00 (0.99–1.02) | 1.00 (0.99–1.01) | 1.02 (1.00––1.03) | 0.99 (0.96–1.02) | 0.90b (0.82–0.99) |
| Hot spot/swale (yes/no) | 0.91 (0.50–1.66) | 1.11 (0.41–3.02) | 1.35 (0.63–2.89) | 0.83 (0.20–3.38) | c | c |
| Childhood exposure (yes/no) | 1.14 (0.54–2.42) | 2.50 (0.72–8.70) | 0.98 (0.13–7.54) | 2.70 (0.33–21.12) | c (0.16–2.91) | 0.67 |
| Years attending 99th Street School | 0.96 (0.85–1.08) | 0.58 (0.33–1.04) | 0.56 (0.24–1.29) | 0.52 (0.15–1.74) | c (0.94–1.32) | 1.12 |
| Age (years) | 1.10b (1.09–1.10) | 1.09b (1.08–1.10) | 1.12b (1.10–1.13) | 1.11b (1.09–1.13) | 1.12b (1.09–1.15) | 1.01 (0.98–1.04) |
| Sex (male) | 1.65b (1.36–2.02) | 1.50b (1.03–2.18) | 1.84b (1.35–2.49) | 4.28b (1.79–10.21) | 1.24 (0.62–2.46) | 1.72 (0.82–3.62) |
| Ever smoked (yes/no) | 1.66b (1.35–2.05) | 1.63b (1.10–2.44) | 1.36b (1.00+–1.84) | 1.34 (0.84–2.12) | 6.23b (2.15–18.02) | 2.25 (0.93–5.45) |
| Alcohol consumption (yes/no) | 0.91 (0.76–1.08) | 1.15 (0.81–1.63) | 0.87 (0.67–1.13) | 0.80 (0.54–1.19) | 1.65 (0.82–3.28) | 1.16 (0.52–2.58) |
| Potential occupational exposure to LCICs (yes/no) | 1.00 (0.83–1.21) | 1.01 (0.70–1.45) | 1.24 (0.92–1.66) | 1.33 (0.85–2.11) | 0.50b (0.25–0.97) | 0.94 (0.45–1.95) |
| Interactions with survival time | ||||||
| Closed period (tiers 1/2) | 0.99 (0.98–1.00) | |||||
| Closed period (tiers 3/4) | 1.01 (1.00+–1.02) | |||||
| Sex | 0.91 (0.85–0.99) | |||||
1.00+ , slightly > 1.00; 1.00− , slightly < 1.00.
a
AMI is a subset of circulatory diseases.
b
CI does not include 1.00.
c
HR not calculable because of zero cells.