Table 3.
Sensitivity analyses for association of haematocrit and mortality, by sex
| Women |
Men |
|||
|---|---|---|---|---|
| Haematocrit (%) | N | HR (95% CI) | N | HR (95% CI) |
| Excluding first 2 years of follow-up | ||||
| 15–29 | 6 | 1.47 (0.65–3.32) | 9 | 1.73 (0.89–3.37) |
| 30–34 | 32 | 1.18 (0.81–1.73) | 24 | 1.31 (0.86–1.99) |
| 35–39 | 160 | 1.00 (Referent) | 104 | 0.94 (0.76–1.18) |
| 40–44 | 292 | 1.19 (0.98–1.44) | 337 | 1.00 (Referent) |
| 45–49 | 120 | 1.72 (1.35–2.19) | 265 | 0.93 (0.79–1.10) |
| 50–54 | 8 | 1.92 (0.98–3.78) | 61 | 1.16 (0.88–1.53) |
| 55–69 | 1 | 5 | 0.83 (0.31–2.24) | |
| Mortality in never-users of cigarettes, hookahs, or opium | ||||
| 15–29 | 12 | 2.38 (1.32–4.26) | 2 | 0.74 (0.18–3.00) |
| 30–34 | 49 | 1.52 (1.11–2.09) | 17 | 2.25 (1.36–3.70) |
| 35–39 | 191 | 1.00 (referent) | 78 | 1.40 (1.08–1.82) |
| 40–44 | 350 | 1.28 (1.07–1.53) | 195 | 1.00 (Referent) |
| 45–49 | 127 | 1.75 (1.39–2.20) | 172 | 0.94 (0.76–1.16) |
| 50–54 | 10 | 2.28 (1.21–4.34) | 53 | 1.47 (1.08–2.01) |
| 55–69 | 2 | 4.59 (1. 13–18.60) | 5 | 1.98 (0.63–6.18) |
| Excluding external causes of death | ||||
| 15–29 | 14 | 2.11 (1.23–3.62) | 18 | 2.21 (1.36–3.61) |
| 30–34 | 60 | 1.40 (1.05-1.86) | 48 | 1.69 (1.25–2.28) |
| 35–39 | 242 | 1.00 (Referent) | 197 | 1.20 (1.01–1.42) |
| 40–44 | 417 | 1.18 (1.00–1.38) | 474 | 1.00 (Referent) |
| 45–49 | 163 | 1.64 (1.34–2.02) | 378 | 0.98 (0.85–1.13) |
| 50–54 | 13 | 2.18 (1.24–3.82) | 92 | 1.28 (1.02-1.61) |
| 55–69 | 3 | 5.96 (1.90–18.68) | 12 | 1.31 (0.68–2.55) |
| Excluding individuals with self-reported IHD at baseline | ||||
| 15–29 | 11 | 1.89 (1.03–3.47) | 11 | 1.88 (1.00–3.53) |
| 30–34 | 49 | 1.28 (0.93–1.75) | 46 | 1.95 (1.43–2.66) |
| 35–39 | 216 | 1.00 (Referent) | 179 | 1.25 (1.05–1.50) |
| 40–44 | 373 | 1.20 (1.01–1.42) | 415 | 1.00 (Referent) |
| 45–49 | 137 | 1.58 (1.27–1.97) | 349 | 1.05 (0.90–1.22) |
| 50–54 | 11 | 2.43 (1.32–4.47) | 81 | 1.32 (1.03–1.69) |
| 55–69 | 3 | 10.46 (3.34–32.77) | 10 | 1.14 (0.54–2.43) |
CI, confidence interval; HR, hazard ratio; IHD, ischaemic heart disease; N, number of deaths.
Hazard ratios (95% CIs) are adjusted for age; ethnicity; place of residence; education level; cigarette smoking (both current/former status and cumulative use); water-pipe smoking; nass chewing; opium use; body mass index; and history of hypertension, self-reported diabetes, ischemic heart disease, and cancer (variables as shown in Table 1).
Hazard ratios (95% CIs) in never-users of cigarettes, a hookah, or opium were not adjusted for the variables of cigarette, hookah, and opium use.