Table 2 Cohort life table of dogs under primary veterinary care in the UK.
From: Life tables of annual life expectancy and mortality for companion dogs in the United Kingdom
Age (year) [x, x + 1) | Number of dogs died in [x, x + 1) (\({d}_{x}\)) | Number of dogs living at x (\({l}_{x}\)) | Probability of dogs dying in [x, x + 1) (\({\widehat{q}}_{x}\)) | Mean fraction of last year of life lived by dogs died in [x, x + 1) (\({\widehat{a}}_{x}\)) | Number of dog-years lived in [x, x + 1) (\({L}_{x}\)) | Number of dog-years lived beyond x (\({T}_{x}\)) | Life expectancy at x (\({\widehat{e}}_{x}\)) |
|---|---|---|---|---|---|---|---|
0–1 | 514 | 30,563 | 0.017 | 0.42 | 30,263.84 | 343,221.39 | 11.23 (11.19–11.27) |
1–2 | 481 | 30,049 | 0.016 | 0.52 | 29,819.18 | 312,957.55 | 10.41 (10.37–10.46) |
2–3 | 482 | 29,568 | 0.016 | 0.45 | 29,304.56 | 283,138.37 | 9.58 (9.54–9.61) |
3–4 | 489 | 29,086 | 0.017 | 0.48 | 28,829.65 | 253,833.80 | 8.73 (8.69–8.76) |
4–5 | 559 | 28,597 | 0.020 | 0.48 | 28,304.73 | 225,004.16 | 7.87 (7.83–7.90) |
5–6 | 677 | 28,038 | 0.024 | 0.47 | 27,679.76 | 196,699.43 | 7.02 (6.98–7.05) |
6–7 | 892 | 27,361 | 0.033 | 0.46 | 26,883.05 | 169,019.67 | 6.18 (6.14–6.21) |
7–8 | 1254 | 26,469 | 0.047 | 0.51 | 25,853.71 | 142,136.63 | 5.37 (5.34–5.40) |
8–9 | 1730 | 25,215 | 0.069 | 0.50 | 24,344.36 | 116,282.92 | 4.61 (4.58–4.64) |
9–10 | 2265 | 23,485 | 0.096 | 0.49 | 22,333.50 | 91,938.56 | 3.91 (3.89–3.94) |
10–11 | 2852 | 21,220 | 0.134 | 0.48 | 19,746.67 | 69,605.06 | 3.28 (3.25–3.31) |
11–12 | 3449 | 18,368 | 0.188 | 0.50 | 16,637.57 | 49,858.39 | 2.71 (2.69–2.74) |
12–13 | 3645 | 14,919 | 0.244 | 0.47 | 13,001.49 | 33,220.82 | 2.23 (2.20–2.25) |
13–14 | 3785 | 11,274 | 0.336 | 0.48 | 9303.98 | 20,219.32 | 1.79 (1.77–1.82) |
14–15 | 3126 | 7489 | 0.417 | 0.44 | 5743.64 | 10,915.34 | 1.46 (1.43–1.48) |
15–16 | 2249 | 4363 | 0.515 | 0.43 | 3070.22 | 5171.70 | 1.19 (1.15–1.22) |
16–17 | 1253 | 2114 | 0.593 | 0.39 | 1348.90 | 2101.48 | 0.99 (0.95–1.03) |
17–18 | 542 | 861 | 0.630 | 0.38 | 522.78 | 752.58 | 0.87 (0.82–0.93) |
18–19 | 218 | 319 | 0.683 | 0.32 | 170.71 | 229.81 | 0.72 (0.64–0.80) |
19–20 | 78 | 101 | 0.772 | 0.33 | 48.41 | 59.09 | 0.59 (0.47–0.71) |
20 and over | 23 | 23 | 1.000 | 0.46 | 10.68 | 10.68 | 0.46 (0.26–0.70) |
