Table 2.
Demographic Information Included in the Meta-Analysis
| SZ patients (n=1845) | GP (n=196845) | HC (n=766) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimated | Diagnostic | ||||||||||||
| Authors | City | n | Recruitment year | In/Out | Age | %M | n | Age | %M | n | Age | %M | criteria |
| Mori et al. (2003) | Tokyo | 137 | 1992 | Out | 36.1±12.1 | 48.2 | 11429 | NA | 56.8 | - | - | - | DSM-IV |
| Shimoda et al. (1999) | Saitama | 66 | 1998 | In | 49.1±8.7 | 100 | 6076 | NA | 100 | - | - | - | DSM-IV |
| Oniki et al. (2016) | Aomori | 186 | 2004 | In/Out | 50.7±15.2 | 50.3 | 10875 | NA | 52.9 | 305 | 50.7±9.1 | 43.3 | DSM-IV |
| Kobayashi et al. (2010) | All Japan | 460 | 2005 | Out | 39.2±11.5 | 53.5 | 10391 | NA | 52.8 | - | - | - | ICD-10 |
| Yoshimura et al. (2008) | Fukuoka | 98 | 2006 | NA | 35.0±17.0 | 53.1 | 18595 | NA | 52.1 | - | - | - | DSM-IV |
| Moriwaki et al. (2009) | Aichi | 100 | 2007 | NA | 51.6±15.7 | 62.0 | 19205 | NA | 51.5 | 107 | 32.7±7.2 | 66.4 | DSM-IV |
| Shinozaki et al. (2011) | Tokyo | 172 | 2008 | In | 54 | 54.7 | 20000 | NA | 50.5 | - | - | - | DSM-IV |
| Watanabe et al. (2012) | Niigata | 157 | 2009 | In | 35.5±10.6 | 50.3 | 20807 | NA | 50.5 | 136 | 35.9±9.8 | 53.7 | DSM-IV |
| Miyauchi et al. (2017) | Kanagawa | 70 | 2010 | In | 56.4±13.0 | 25.7 | 20631 | NA | 50.6 | - | - | - | DSM-IV |
| Niitsu et al. (2014) | Chiba | 63 | 2011 | Out | 35.9±8.2 | 41.3 | 19064 | NA | 49.8 | 52 | 34.9±7.3 | 48.1 | DSM-IV |
| Sasayama et al. (2013) | Tokyo | 32 | 2012 | Out | 40.8±8.8 | 62.5 | 19897 | NA | 50.6 | 35 | 41.3±16.4 | 71.4 | DSM-IV |
| Present study | Ishikawa | 304 | 2017 | In/Out | 50.6±15.0 | 47.4 | 19875 | NA | 49.3 | 131 | 35.3±11.3 | 64.1 | DSM-5 |
Abbreviations: GP, general population; HC, healthy control; In/Out, inpatients/outpatients; %M, % male; NA, not applicable.
Means±SD are shown.