Relative risk3-151, Stone's conditional p value, Poisson regression estimate, unadjusted and adjusted for provider, and combined estimate of association for four coke work groups, 1992/3 to 1994/5, ages 0–4 years
| Condition | Group | Relative risk (observed cases) | p value (Stone's test) | Relative risk3-151/km from Poisson regression | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Distance band (km) | No provider adjustment | Adjusted for provider | ||||||||||||
| 0.5–<1 | 1–<2 | 2–<3 | 3–<4.6 | 4.6–<5.7 | 5.7–<6.7 | 6.7–<7.5 | RR | 95% CI | RR | 95% CI | ||||
| All respiratory | Royston | 1.51 (28) | 1.06 (52) | 1.64 (157) | 1.16 (346) | 1.13 (348) | 1.06 (243) | 1.31 (375) | 0.085 | 1.03 | 0.98 to 1.07 | 1.03 | 1.00 to 1.06 | |
| Scunthorpe | (0) | 1.45 (114) | 1.67 (305) | 1.45 (494) | 1.39 (91) | 1.48 (21) | 1.07 (41) | 0.254 | 1.08 | 1.02 to 1.15 | 1.08 | 1.02 to 1.15 | ||
| Teesside | 2.28 (98) | 2.10 (289) | 1.62 (438) | 1.56 (1096) | 1.39 (600) | 1.20 (289) | 1.15 (238) | 0.001 | 1.13 | 1.09 to 1.17 | 1.09 | 1.06 to 1.12 | ||
| Newport | (0) | 0.71 (101) | 0.96 (121) | 0.73 (185) | 0.94 (198) | 0.77 (131) | 0.91 (109) | 0.766 | 1.00 | 0.94 to 1.06 | 1.00 | 0.95 to 1.06 | ||
| Combined estimate3-150 | 1.08 | 0.98 to 1.20 | ||||||||||||
| Asthma | Royston | 1.59 (7) | 1.24 (14) | 1.94 (42) | 0.76 (51) | 1.26 (88) | 1.22 (66) | 1.61 (106) | 0.198 | 0.99 | 0.90 to 1.09 | 1.00 | 0.94 to 1.07 | |
| Scunthorpe | (0) | 0.83 (15) | 1.63 (68) | 1.47 (115) | 1.58 (25) | 0.86 (3) | 0.33 (3) | 0.238 | 1.13 | 0.97 to 1.32 | 1.13 | 0.97 to 1.32 | ||
| Teesside | 2.57 (30) | 2.21 (83) | 1.34 (99) | 1.62 (311) | 1.35 (160) | 0.83 (54) | 1.19 (67) | 0.024 | 1.12 | 1.05 to 1.20 | 1.09 | 1.04 to 1.15 | ||
| Newport | (0) | 1.15 (36) | 1.69 (46) | 0.96 (52) | 1.28 (58) | 0.97 (35) | 0.97 (25) | 0.284 | 1.06 | 0.94 to 1.20 | 1.06 | 0.97 to 1.17 | ||
| Combined estimate3-150 | 1.07 | 0.98 to 1.18 | ||||||||||||