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. 1999 May 29;318(7196):1455.

Table.

Numbers of admissions (rate per week) for acute appendicitis and non-specific abdominal pain with rate ratios for children aged 5-16 years during school term and holiday time

Year Acute appendicitis
Non-specific abdominal pain
Term Holiday Rate ratio (95% CI) Term Holiday Rate ratio (95% CI)
1992-3  83 (2.0) 28 (2.5) 0.80 (0.51 to 1.23) 268 (6.5) 44 (4.0) 1.63 (1.18 to 2.26)
1993-4 110 (2.7) 30 (2.7) 0.98 (0.65 to 1.49) 320 (7.8) 48 (4.4) 1.79 (1.31 to 2.44)
1994-5 103 (2.5) 26 (2.4) 1.06 (0.69 to 1.65) 285 (7.0) 55 (5.0) 1.39 (1.04 to 1.87)
1995-6  94 (2.3) 23 (2.1) 1.10 (0.69 to 1.75) 327 (8.0) 81 (7.4) 1.08 (0.85 to 1.39)
1996-7 115 (2.8) 31 (2.8) 1.00 (0.66 to 1.49) 341 (8.3) 63 (5.7) 1.45 (1.10 to 1.91)
Total 505 (2.5) 138 (2.5) 0.98 (0.81 to 1.19) 1541 (7.5) 291 (5.3) 1.42 (1.25 to 1.61)