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Table 1 Available evidence on patterns of onset of ICH for nearly 30 years

From: Circadian variations in the occurrence of first‐ever intracerebral hemorrhage from different sources of income: a hospital‐based cross‐sectional study

Ref. Author, year Country Cases (n) Peak
[7]a Omama et al., 2006 Japan 3852 06:00-08:00h and 18:00-20:00h
[8]a Spengos et al., 2003 Greece 200 08:00-10:00h and 16:00-18:00h
[9] Inagawa et al., 2000 Japan 267 08:00-10:00h and 18:00-20:00h
[10] Sloan et al., 1992 USA 237 10:00-12:00h and 18:00-20:00h
[11] Fodor et al., 2014 Romania 94 06:00-12:00h
[12]a Butt et al., 2009 Pakistan 329 08:00-12:00h
[13] Passero et al., 2000 Italy 778 06:00-12:00h
[14] Gallerani et al., 1994 Italy 161 06:00-12:00h
[15] Ricci et al., 1992 Italy 375 06:00-12:00h
[16]a Inagawaet et al., 2003 Japan 350 18:00-20:00h
[17] Cheung et al., 2001 China 177 12:00-18:00h
[18]a Nyguist et al., 2001 USA 137 08:00-16:00h
[19]a Turin et al., 2013 Japan 335 Awake
[20] Nagakane et al., 2006 Japan 129 Awake
[21] Kocer et al., 2005 Turkey 240 03:00-06:00h and 15:00-18:00hb
[22] Wroe et al., 1992 UK 66 10:00-12:00hb
[23]a Kelly-Haues et al., 1995 USA 43 08:00-16:00hb
  1. aThe subjects were first-ever ICH, bPeak had no significant