Table 1 Distribution of cases and controls by year, season and sex
| Â | Cases, n (%) | Controls, n (%) | Pv |
|---|---|---|---|
| Â | (N = 190) | (N = 295) | Â |
Year | Â | Â | Â |
1992 | 7 (3.7) | 17 (5.8) | 0.45 |
1993 | 7 (3.7) | 9 (3.1) | Â |
1994 | 15 (7.9) | 24 (8.1) | Â |
1995 | 17 (8.9) | 17 (5.8) | Â |
1996 | 6 (3.2) | 15 (5.1) | Â |
1997 | 11 (5.8) | 15 (5.1) | Â |
1998 | 12 (6.3) | 15 (5.1) | Â |
1999 | 12 (6.3) | 25 (6.1) | Â |
2000 | 22 (11.6) | 36 (12.2) | Â |
2001 | 12 (6.3) | 20 (6.8) | Â |
2002 | 7 (3.7) | 7 (2.4) | Â |
2003 | 11 (5.8) | 24 (8.1) | Â |
2004 | 4 (2.1) | 11 (3.7) | Â |
2005 | 6 (3.2) | 14 (4.7) | Â |
2006 | 12 (6.3) | 16 (5.4) | Â |
2007 | 14 (7.4) | 19 (6.4) | Â |
2008 | 12 (6.3) | 4 (1.4) | Â |
2009 | 3 (1.6) | 4 (1.4) | Â |
Season | Â | Â | Â |
Winter | 46 (24.2) | 74 (25.1) | 0.93 |
Spring | 48 (25.3) | 73 (24.7) | Â |
Summer | 48 (25.3) | 68 (23.1) | Â |
Fall | 48 (25.3) | 80 (27.1) | Â |
Sex | Â | Â | Â |
Males | 119 (62.6) | 176 (59.7) | 0.54 |
Females | 71 (37.4) | 118 40.1) | Â |
Ethnic group by hospital | Â | Â | Â |
Hillel Yaffe Medical Center | Â | Â | Â |
Arabs | 49 (49.0) | 56 (40.3) | Â |
Jews | 51 (51.0) | 83 (59.7) | 0.24 |
Carmel Medical Center | Â | Â | Â |
Arabs | 27 (30.0) | 36 (23.2) | 0.18 |
Jews | 63 (70.0) | 119 (76.8) | Â |