calcSD

Dataset List

Detailed information about the datasets in case you need it for whatever reason. If there's a few details missing, that's because full access to a few of these studies is paid, so there's some information I can't reach.

Words of importance:

• Avg.: Average.
• SD: Standard deviation.
• n: Number of measurements for each dataset or average.
• N/A: Not Available (currently or permanently).
• N/D: No Data (at all, not just inaccessible).
• Stretched Flaccid Length: See this page. (external link - NSFW)


• Meta-dataset: A dataset that combines data from other studies/datasets.
• Self-reported: Measurements were submitted individually by each person rather than being measured by a professional.
• Bone-pressed (BP): Length measurements for this dataset were done pressed against the pubic bone.
• Non bone-pressed (NBP): Length measurements for this dataset were done pressed against the skin, not pushing any of the fat pad out.
• Base-shaft/Mid-shaft girth: Girth measurements were done either at the base or near the middle, respectively.

• calcSD Average (v2)
  
  • Data:
    
    • Authors: /u/CarnivalNightZone
    • Source: https://calcsd.netlify.com/study2
    • Countries: See source.
    • Measurements: BP and NBP (separate), mixed base and mid-shaft girth, meta-dataset
  • Notes:
    
    • This is the main dataset used by calcSD that combines various different studies. All information about it is available by clicking https://calcsd.netlify.com/study2


• Phosphine Average
  
  • Data:
    
    • Author: /u/arentol
    • Source: https://calcsd.netlify.com/study2
    • Countries: Israel, India, China, Saudi Arabia
    • Measurements: Bone-pressed, mixed base and mid-shaft girth, meta-dataset
    • Studies: Chen J et al. 2000, Promodu et al. 2007*, Chen XB et al. 2014, Habous et al. 2015
    • n: Erect: 1237 - Flaccid: 5552
  • Averages:
    
    • Avg. Erect Length: 13.88cm (SD 1.70) - 5.46" (SD 0.67)
    • Avg. Erect Girth: 11.21cm (SD 1.49) - 4.41" (SD 0.59)
    • Avg. Flaccid Length: 6.61cm (SD 0.75) - 2.60" (SD 0.30)
    • Avg. Flaccid Girth: 8.06cm (SD 0.82) - 3.17" (SD 0.32)
    • Avg. Stretched Flaccid Length: 12.79cm (SD 1.21) - 5.04" (SD 0.48)
  • Notes:
    
    • *Group 3 is used for the erect length/girth measurements (n = 41).


• Habous et al. 2015
  
  • Data:
    
    • Authors: Mohamad Habous, Alaa Tealab, Ben Williamson, Saleh Binsaleh, Sherif El Dawy, Saad Mahmoud, Osama Abdelwahab, Mohammed Nassar, John P. Mulhall, David Veale, Gordon Muir
    • Source: https://www.ncbi.nlm.nih.gov/pubmed/25904106
    • Countries: Saudi Arabia
    • Measurements: BP and NBP (separate)
    • n: 778
  • Averages:
    
    • Avg. Erect Length: 14.34cm (SD 1.86) - 5.65" (SD 0.73) (bone-pressed)
    • Avg. Erect Length: 12.53cm (SD 1.93) - 4.93" (SD 0.76) (non bone-pressed)
    • Avg. Erect Girth: 11.50cm (SD 1.74) - 4.53" (SD 0.69)
  • Notes:
    
    • The website uses the bone-pressed measurements by default.


• Veale et al. 2015
  
  • Data:
    
    • Authors: David Veale, Sarah Miles, Sally Bramley, Gordon Muir, John Hodsoll
    • Source: https://www.ncbi.nlm.nih.gov/pubmed/25487360
    • Countries: Turkey, Italy, Egypt, Iran, Bulgaria, France, U.K. (Scotland), Nigeria, India, Jordan, Tanzania, United States, Korea, Germany, Canada, Greece
    • Measurements: Mixed BP and NBP, mid-shaft girth, meta-dataset
    • Studies: Ponchietti et al. 2001, Söylemez et al. 2011, Shalaby et al. 2014, Mehraban et al. 2006, Aslan et al. 2011, Kamel et al. 2009, Tomova et al. 2010, Bondil et al. 1991, Khan et al. 2012, Ajmani et al. 1985, Promodu et al. 2007, Awwad et al. 2004, Chrouser et al. 2013, Sengezer et al. 2002, Choi et al. 2011, Savoie et al. 2003, Schneider et al. 2001, Wessells et al. 1996, Siminoski et al. 1993, Spyropoulos et al. 2005
    • n: Erect Length: 692 - Erect Girth: 381 - Flaccid Length: 10704 - Flaccid Girth: 9407 - Stretched Flaccid Length: 14160
  • Averages:
    
    • Avg. Erect Length: 13.12cm (SD 1.66) - 5.17" (SD 0.65)
    • Avg. Erect Girth: 11.66cm (SD 1.10) - 4.59" (SD 0.43)
    • Avg. Flaccid Length: 9.16cm (SD 1.57) - 3.61" (SD 0.62)
    • Avg. Flaccid Girth: 9.31cm (SD 0.90) - 3.67" (SD 0.35)
    • Avg. Stretched Flaccid Length: 13.24cm (SD 1.89) - 5.21" (SD 0.74)
  • Notes:
    
    • This is not a recommended dataset due to mixing bone-pressed and non bone-pressed measurements.


• Hungfun's Average (2013)
  
  • Data:
    
    • Authors: /u/hungfun
    • Source: https://imgur.com/a/3r5sH
    • Countries: Germany, United States, Israel
    • Measurements: Mixed BP and NBP, mixed base and mid-shaft girth, meta-dataset
    • Studies: Schneider et al. 2001, Wessells et al. 1996, Chen J et al. 2000
    • n: 246
  • Averages:
    
    • Avg. Erect Length: 14.61cm (SD 2.10) - 5.76" (SD 0.83)
    • Avg. Erect Girth: 11.87cm (SD 1.37) - 4.67" (SD 0.54)
    • Avg. Flaccid Length: 8.58cm (SD 1.73) - 3.38" (SD 0.68)
  • Notes:
    
    • This is not a recommended dataset due to mixing bone-pressed and non bone-pressed measurements.