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. 2018 Aug 17;8(8):e023569. doi: 10.1136/bmjopen-2018-023569

Table 2.

Rates of consultations and invoiced diagnostic tests among cases and references

Months before diagnosis Rates of consultations
(95% CI)
Additional rates
(95% CI)
Rates of diagnostic tests
(95% CI)
Additional rates
(95% CI)
Cases
(n=1386)
References (n=13 860) Cases
(n=1386)
References
(n=13 860)
1–3 2.43
(2.30 to 2.55)
0.75
(0.73 to 0.76)
1.67
(1.55 to 1.80)
0.72
(0.64 to 0.81)
0.12
(0.11 to 0.13)
0.60
(0.52 to 0.69)
4–6 1.02
(0.94 to 1.10)
0.82
(0.80 to 0.85)
0.20
(0.12 to 0.28)
0.18
(0.14 to 0.23)
0.13
(0.12 to 0.14)
0.05
(0.01 to 0.11)
7–9 0.99
(0.91 to 1.08)
0.82
(0.80 to 0.84)
0.18
(0.09 to 0.27)
0.13
(0.11 to 0.17)
0.12
(0.11 to 0.13)
0.02
(−0.01 to 0.05)
10–12 0.95
(0.87 to 1.03)
0.83
(0.81 to 085)
0.12
(0.04 to 0.20)
0.13
(0.10 to 0.16)
0.12
(0.12 to 0.13)
0.01
(−0.02 to 0.04)
13–15 0.90
(0.82 to 0.98)
0.80
(0.78 to 0.83)
0.10
(0.02 to 0.18)
0.17
(0.13 to 0.21)
0.12
(0.53 to 0.13)
0.05
(0.01 to 0.08)
16–18 0.88
(0.80 to 0.95)
0.76
(0.74 to 0.79)
0.11
(0.33 to 0.19)
0.13
(0.10 to 0.16)
0.11
(0.10 to 0.12)
0.02
(−0.01 to 0.05)
19–21 0.85
(0.77 to 0.92)
0.79
(0.77 to 0.82)
0.05
(−0.03 to 0.13)
0.15
(0.11 to 0.18)
0.11
(0.10 to 0.12)
0.04
(−0.00 to 0.07)
22–24 0.79
(0.72 to 0.85)
0.79
(0.77 to 0.82)
0.00
(−0.08 to 0.07)
0.09
(0.07 to 0.11)
0.11
(0.11 to 0.13)
−0.03
(−0.06 to 0.00)
Total
(1–24)
8.82 6.38 2.43
(2.08 to 2.78)
1.71
(1.55 to 1.87)
0.95
(0.92 to 0.98)
0.76 (0.64 to 0.88)

Additional rates are the difference between consultation rates of cases and references.

Statistically significant additional rates are presented in bold.